Medical Credentialing Services for Providers and Practices

Get credentialed with the payers your patients use, and start getting paid sooner. MediFlows handles provider credentialing and payer enrollment from the first application to final approval: CAQH, Medicare, Medicaid and commercial plans. We follow up until you’re approved and tell you exactly when you can start billing.

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Medical Credentialing Services for Providers and Practices

What Are Medical Credentialing Services?

Before an insurance company pays you, it has to approve you. Medical credentialing services handle that approval for you. That means checking your licenses, education and history, filing applications with each payer, following up until you’re in network, and keeping everything current after that.

Three terms get mixed up a lot:

Credentialing is the background check. A payer or hospital confirms your license, board certification, DEA, malpractice coverage and work history with the original sources. This is called primary source verification.
Payer enrollment is the contract. Once you pass credentialing, the payer loads you into its system with an effective date, and from that date your claims can be paid in network.
Privileging is for hospitals. It decides which procedures you can perform at a specific facility.

If any of these is missing or expired, claims get denied. Often the denial reads like a billing error when it’s really a credentialing problem. For a full explanation of how the process works, read our guide to medical credentialing explained.

Signs Your Practice Needs Better Revenue Cycle Management

Many practices don’t realize how much they’re losing until they look closely. If any of these sound familiar, your revenue cycle needs attention:

A new provider joined weeks ago and still can't bill most payers.
Claims come back saying the provider isn't eligible or isn't on file with the plan.
Nobody knows when your CAQH profile was last re-attested.
A Medicare revalidation letter arrived and is sitting on someone's desk.
Payers say your application is incomplete, and each fix restarts the clock.
You're seeing patients as out-of-network who should be in network.
You changed your address, tax ID or group name, and payments slowed down soon after.
A payer told you its network is closed, and nobody followed up.

What a Credentialing Delay Really Costs

Credentialing delays don’t show up as an expense on your books. They show up as revenue that never arrives.
Here’s a simple example. A new provider sees 18 patients a day, 20 days a month, and the average payment per visit is $95.

90-Day Risk

Metric	Amount
Monthly Visits Patient volume within network	360
Monthly Network Revenue Expected reimbursed revenue	$34,200
Revenue at Risk If credentialing is delayed by 90 days	$102,600

Some of that can be rescheduled or billed later, but much of it can’t. Patients go elsewhere, payers deny visits before your effective date, and out-of-network visits pay less or not at all. Starting credentialing early and following up every week is the cheapest way to protect that revenue.

Credentialing SERVICES

Our Provider Credentialing Services

Our healthcare credentialing services cover every step, from the first application to recredentialing years later. We handle every application and every follow-up call, so your providers don’t have to.

New provider credentialing

Full setup for physicians, nurse practitioners, physician assistants and other licensed providers joining your practice. We collect documents once and use them for every payer.

Insurance credentialing with commercial payers

Medical insurance credentialing with commercial plans and Medicare Advantage plans. We track each application by payer, and you can see where every one stands.

Medicare credentialing and revalidation

PECOS applications for individuals (CMS-855I) and groups (CMS-855B), reassignment of benefits to your group, and revalidation every five years so your billing privileges don't lapse.

Medicaid and managed Medicaid enrollment

State-by-state Medicaid enrollment, then separate credentialing with each managed Medicaid plan in your area. We also handle ordering and referring provider enrollment.

CAQH ProView management

Profile setup, document uploads and re-attestation every 120 days. Most commercial payers pull your data from CAQH, so an expired profile can stop your applications and recredentialing.

NPI, group and EFT/ERA setup

Individual (Type 1) and group (Type 2) NPIs, group enrollment, and electronic payment (EFT) and remittance (ERA) enrollment, so payments come in electronically.

Hospital credentialing and privileges

Hospital credentialing services for facility privileges and reappointment, with reminders well before your privileges expire.

Payer contracting and closed networks

If a payer says its network is closed, we don't stop there. We ask what an exception would need and make the case for your practice when there's a real access need, such as your specialty, location, languages spoken or extended hours.

How Our Credentialing Process Works

Switching billing partners shouldn’t disrupt your cash flow. Here’s how we get started:

Step 01 of 07

Free credentialing review

We check your current status with each payer, your CAQH profile and your Medicare enrollment. You get a list of what’s done, what’s missing and what’s at risk. If applications are already in progress, we pick them up where they are instead of starting over.

Step 2 of 07

One document collection.

We send one checklist (see the list below). You send documents once, not once per payer, and we store them securely for renewals.

Step 03 of 07

Payer plan.

Together we decide which payers matter most, based on your patient mix and location. Medicare is usually filed first for new providers because of its 30-day billing lookback.

Step 04 of 07

Go live with a dedicated team.

We complete and submit each payer application, CAQH and PECOS. Before anything goes out, we check that names, addresses, taxonomy codes and tax ID match across every form. Mismatches are one of the most common reasons applications get sent back.

Step 05 of 07

Follow-up until approval.

We call and check portals on a set schedule and answer payer requests quickly. Every follow-up is logged with the date, the person we spoke to and the reference number.

Step 06 of 07

Effective dates confirmed

When a payer approves you, we confirm the effective date in writing and send it to your billing team, so claims start on the right day.

Step 07 of 07

Ongoing maintenance.

We handle re-attestations, revalidations, recredentialing and directory updates before deadlines, not after a denial shows up.

Documents Needed for Credentialing

Having these ready before you start is the single biggest thing you can do to speed up credentialing.

For each providers

Current state license(s)
DEA registration and state controlled substance license, if you prescribe
Board certification or eligibility
Malpractice insurance certificate (many payers ask for $1 million per claim and $3 million aggregate coverage)
Malpractice claims history
CV with month and year for each job, covering at least the last five years. Gaps of six months or more usually need a short explanation.
Diplomas and training certificates (medical school, residency, fellowship)
ECFMG certificate for international medical graduates
Hospital privileges letter or admitting arrangement, if required by the payer
Individual NPI (Type 1), CAQH ID and PECOS login, if you have them
Government photo ID

For the practice or group

#	Required Information / Documents	✓
01	Group NPI (Type 2) and tax ID (EIN)	✓
02	IRS letter confirming the legal business name and tax ID	✓
03	W-9	✓
04	Practice locations, phone numbers and office hours	✓
05	Bank letter or voided check for EFT	✓
06	Ownership and managing employee details (needed for Medicare and Medicaid)	✓

Credentialing With Every Type of Payer

Third-party payer credentialing works differently with each type of payer, and being approved by one doesn’t put you in network with another.

Payer Type	How It Works	What Practices Often Miss
Medicare (Traditional)	Enrollment through PECOS with your Medicare contractor.	Revalidation every 5 years, plus the 30-day billing lookback before your effective date.
Medicare Advantage	Private plans that credential providers separately.	Enrollment in traditional Medicare does not automatically make you in-network with a Medicare Advantage plan.
Medicaid	State-by-state enrollment through each state’s own system.	Requirements vary by state. Separate enrollment may be needed for every state you serve.
Managed Medicaid	Private health plans that administer Medicaid benefits in many states.	State Medicaid enrollment is generally required first, followed by a separate contract with each applicable plan.
Commercial Plans	Applications often use CAQH data before review by the payer’s credentialing committee.	Your CAQH profile must be complete, attested, and authorized for the specific payer.
Behavioral Health Carve-Outs	Some health plans route mental health claims through a separate behavioral health organization.	Credentialing with the primary health plan may not include participation in its separate behavioral health network.

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Medicaid is where many practices get stuck, because every state runs its own system. Our team handles Medicaid credentialing state by state and then with each managed Medicaid plan.

How Long Does Provider Credentialing Take?

Most commercial payers take about 60 to 120 days from a complete application to approval. Medicare and Medicaid timelines depend on your Medicare contractor and your state. The biggest delay we see isn’t the payer. It’s an incomplete application that gets sent back and starts the clock over.

Timing matters for Medicare. Your Medicare effective date is the later of the date your approved application was filed or the date you started seeing patients at that location. In most cases, Medicare lets you bill for services up to 30 days before that effective date. A provider who sees Medicare patients for two months before filing can usually bill only the last 30 days of those visits. That’s why we file Medicare first for new providers.

What Slows Credentialing Down	How We Prevent It
Missing or expired documents	One checklist up front and expiration tracking.
Names, addresses or tax ID that don’t match across forms	Cross-check every form before it’s submitted.
CAQH not attested or missing authorization for the payer	CAQH reviewed and authorized for each payer before the application goes out.
No follow-up for weeks	Scheduled follow-ups with every call and portal check logged.
Wrong group linkage	Reassignment and group linkage confirmed with each payer.
Unanswered payer requests	We answer payer questions quickly and track every request.

Common Credentialing Situations We Handle

Situation 01 of 05

Opening a new practice.

Getting a new clinic up and running involves a lot of medical practice credentialing, which includes securing a group NPI, tax ID, enrolling in Medicare and Medicaid, and setting up commercial contracts, often all at the same time. We prioritize the application process to ensure that the most important payers get approved first.

Situation 02 of 05

Adding a new provider to your group.

We handle the credentialing process for the provider and facilitate their integration with your group across all payers. This ensures that claims are directed to your practice rather than being routed to the provider’s former group.

Situation 03 of 05

Changing your tax ID, practice name or ownership.

Payers must be kept informed, and certain modifications necessitate new applications. Medicare mandates that any change in practice location be reported within a 30-day timeframe. Failing to provide these updates is a frequent cause of unexpected payment interruptions.

Situation 04 of 05

Adding a new location.

It is essential to ensure that every new address is registered with each payer prior to initiating any billing from that address.

Situation 05 of 05

A payer says the network is closed.

We investigate if the panel is currently closed for your specialty and location, and we seek an exception when your practice addresses a genuine access gap.

Outsourced vs. In-House Credentialing

Many practices start with an in-house biller. As the practice grows, that setup gets harder to manage. Here’s how the two options compare:

CATEGORY	IN-HOUSE BILLING	MEDIFLOWS OUTSOURCED RCM
Who does the work	An office manager between other jobs	✓ A dedicated credentialing specialist
Follow-up	When someone has time	✓ Scheduled, logged and reported
Deadlines	Tracked on a spreadsheet, if at all	✓ Every license, CAQH and revalidation date tracked
Payer knowledge	Learned one application at a time	✓ Payer-specific checklists
Visibility	“I think it’s still pending”	✓ A weekly status report for every provider and payer
When staff leave	Applications and logins leave with them	✓ Records stay organized and handed over to you any time

Outsourcing credentialing services for providers makes the most sense when you’re adding providers, opening a new location, or have applications stuck for months. If you have one provider and a few payers, in-house can work. Just keep a calendar of every CAQH, license and revalidation date.

How to Choose a Medical Credentialing Company

Healthcare credentialing companies range from large national firms to one-person shops, and not all credentialing companies include the same work. Whether you’re comparing physician credentialing companies or a local consultant, ask these questions before you sign:

How do you charge?

Per provider, per payer, monthly, or a package? Is maintenance included or extra?

How often do you follow up with payers?

Weekly is a good minimum. Ask how you'll see it.

What happens after approval?

Recredentialing, re-attestation and directory updates should be part of the service, not a surprise later.

What happens after approval?

Recredentialing, re-attestation and directory updates should be part of the service, not a surprise later.

Physician Credentialing Services and More: Who We Credential

Our physician credentialing services cover individual providers and groups, including:

Physicians (MD and DO): doctor credentialing services for primary care and specialists
Nurse practitioners and physician assistants
Behavioral health providers: psychiatrists, psychologists, LCSWs, LPCs and LMFTs
Physical, occupational and speech therapists
Chiropractors and podiatrists
Solo practices, multi-specialty physician groups and hospital-affiliated practices
Clinical laboratories and urgent care centers

Behavioral health providers going direct: Many therapists start on third-party platforms and later want their own payer contracts to keep more of each visit. We handle direct enrollment for behavioral health providers, including state-specific Medicaid systems such as New York’s eMedNY and Maryland’s public behavioral health system. See our mental health billing services.

Credentialing and Billing With One Team

Credentialing problems show up as billing problems. When credentialing and billing are handled by different companies, nobody connects the two. With MediFlows, the team that enrolls you also bills for you, so:

claims start the day your effective date arrives,
Medicare’s 30-day lookback is used instead of lost,
eligibility checks catch payers you’re not yet in network with.

You can use our provider credentialing and enrollment services on their own or combine them with medical billing services, insurance eligibility verification or full revenue cycle management. Read more about combining medical billing and credentialing services.

Trusted Care. Proven Excellence

Free Credentialing Billing Consultation — No Appointment Fees

At Mediflows, we are dedicated to delivering exceptional billing support for over 18 years, we have been a offering comprehensive medical services in USA

FAQ's about the Service

How long does medical credentialing take?

Most commercial payers take about 60 to 120 days after receiving a complete application. Medicare and Medicaid vary by contractor and state. Incomplete applications are the most common reason it takes longer, so we check every form before it goes out.

What is the difference between credentialing and enrollment?

Credentialing is the background check that confirms your license, training and history. Enrollment is the step where the payer adds you to its network with an effective date. You need both before claims are paid in network.

What documents do I need to start credentialing?

Usually your state license, DEA certificate (if you prescribe), board certification, malpractice insurance certificate, CV with five years of work history, NPI, and W-9 for the group. We send one checklist so you only gather them once.

What is CAQH, and why does it matter?

CAQH ProView is a shared database most commercial payers use to pull provider information. Your profile must be re-attested every 120 days. If it expires, payers can stop processing your applications and recredentialing.

Do you handle Medicare and Medicaid enrollment?

Yes. Our provider enrollment services include Medicare enrollments and revalidations through PECOS, and Medicaid enrollment state by state, including managed Medicaid plans.

Does being enrolled in Medicare mean I'm in network with Medicare Advantage plans?

No. Medicare Advantage plans are run by private insurers and credential providers separately. You need a separate application with each plan.

How often do providers need to be recredentialed?

Most health plans recredential providers every three years, and Medicare requires revalidation every five years. CAQH needs re-attestation every 120 days. We track all of these dates for you.

Can I see patients while my credentialing is pending?

You can, but the payer may not pay in-network rates, or may not pay at all, for visits before your effective date. Medicare is the main exception: it usually allows billing up to 30 days before your effective date. We confirm each payer's effective date so you can schedule with confidence.

What if a payer says its network is closed?

Closed doesn't always mean final. We ask the payer what an exception requires and make the case when your practice fills an access gap, such as your specialty, location, languages or hours.

Can you take over applications another company started?

Yes. We check what each payer already has on file, pick up from there, and finish the applications instead of starting over.

Do you credential providers for telehealth in other states?

Yes. You generally need a license in the patient's state plus payer enrollment there. We coordinate multi-state licensing and enrollment, including the Interstate Medical Licensure Compact for physicians.