Group Practice Billing & Credentialing Services

A group practice bills under one name but gets paid clinician by clinician. Every provider needs their own enrollment with every plan, every location has to be on file, and every new hire or departure changes what the payers have on record. When those records drift, claims start denying as out of network for clinicians who were seeing patients the whole time. Maximum Billing, LLC provides billing and credentialing for medical, behavioral health, and dental group practices in twelve states.

Schedule a consultation or call 800-820-0364.

What Changes When a Practice Becomes a Group

A solo clinician’s claim names one provider. A group’s claim names two: the group as the billing provider and the individual clinician as the rendering provider. That split is behind most of the billing problems groups run into.

• Two kinds of NPI. The group bills under its organizational (Type 2) NPI and tax ID. Each clinician keeps their own individual (Type 1) NPI, which goes on the claim as the rendering provider.
• Enrollment at two levels. The group is enrolled with a plan, and each clinician has to be credentialed and linked to that group’s enrollment before their claims will pay at in-network rates.
• Medicare reassignment. Clinicians who bill Medicare through a group reassign their benefits to the group in PECOS. Until that is in place, the group cannot be paid for their services.
• Locations on file. Payers tie enrollment to service addresses. A new office or a move can cause denials until each plan’s records are updated.

Group Practice Billing Services We Provide

• Eligibility and benefits checks for every clinician’s schedule, including whether that clinician is in network with the patient’s plan.
• Charge entry and coding review, with the correct billing and rendering provider on every claim.
• Claim submission and correction of clearinghouse rejections.
• Payment posting by clinician, location, and payer, with underpayments flagged against your contracts.
• Denial management and appeals.
• Follow-up on every unpaid claim.
• Patient statements and balance questions.
• Credentialing, linking, and revalidation for the group and every clinician in it.

Adding a New Clinician Without Losing Their First Months

The most expensive gap in a growing group is the time between a clinician’s start date and the date every plan has them on file. Claims for visits in that window can deny or pay out of network, and some plans will not pay retroactively. The earlier enrollment starts, the smaller that window. Our process for each new clinician:

1. Confirm their individual NPI, licenses, and malpractice coverage.
2. Update their CAQH profile with the group’s locations and authorize the plans you accept.
3. Submit applications to each plan, and request linking to the group’s contract where the clinician is already credentialed individually.
4. Set up Medicare reassignment and state Medicaid enrollment where they apply.
5. Track every application to approval, and tell you which plans a clinician can see patients from before their schedule fills.

Our credentialing and payer enrollment services cover the full process.

When a Clinician Leaves

Departures need the same care as hires. Open claims for the clinician’s past visits still have to be worked to payment. Their linkage to the group should be ended with each plan, and their Medicare reassignment ended in PECOS, so no new claims go out under the group’s tax ID by mistake. We keep working a departing clinician’s open claims and handle the plan and Medicare updates.

Where Group Practices Lose Revenue

• A clinician credentialed with a plan but never linked to the group’s contract.
• Claims sent with the wrong rendering provider, or with a supervising clinician’s NPI when the payer does not allow it.
• A new location missing from a payer’s records.
• Revalidation deadlines missed for one clinician among many.
• Collections that look healthy for the group as a whole while one clinician’s claims quietly deny.
• Different clinicians documenting and coding the same service in different ways.

Looking at results by clinician, by location, and by payer is how these problems surface. Our claims denial management and accounts receivable management services describe how we work them.

Groups We Bill For

• Physician and medical groups billing Medicare, Medicaid, and commercial plans. See our medical billing services.
• Behavioral health groups with therapists, counselors, social workers, psychologists, and prescribers on the same schedule. See our mental and behavioral health billing services.
• Psychiatric groups with psychiatrists and psychiatric nurse practitioners. See our psychiatric billing services.
• Dental groups and practices with more than one dentist or location. See our dental billing services.

Smaller practices with one or two clinicians can see our medical billing services for small practices.

Software, Privacy, and Results

We work inside the practice management system your group already uses. That includes SimplePractice, Sessions Health, TherapyNotes, and InSync for behavioral health groups, and Eaglesoft, Dentrix, Dentrix Ascend, and Open Dental for dental groups. A Business Associate Agreement is signed with every client before we receive any patient information, and every member of our team completes HIPAA certification. As of 2026, our clients’ claims reach a 91% clean claim rate, and their accounts receivable average 34 days.

About Maximum Billing

Maximum Billing, LLC is a Fort Myers, Florida, billing and credentialing company founded in 2018 by Gina Abrotsky-Salvatore, CPCS, MHT, who has more than 20 years of experience in insurance billing and revenue cycle management. Our certified billing and coding specialists work remotely with groups in Colorado, Connecticut, Florida, Georgia, Illinois, Missouri, New Jersey, New York, North Carolina, Pennsylvania, South Carolina, and Texas.

Frequently Asked Questions

Do you credential new clinicians as our group hires them?

Yes. We enroll each new clinician with every plan the group accepts, link them to the group’s contracts, and set up Medicare reassignment and Medicaid enrollment where they apply.

Can you bill for a group with more than one location?

Yes. We make sure each location is on file with each payer and that claims carry the correct service address.

Do you bill for groups with different kinds of clinicians?

Yes. We bill for physicians, nurse practitioners, therapists, counselors, social workers, psychologists, and dentists, and we track each clinician’s enrollment with each plan.

Do we have to change our software?

No. We work inside the system your group already uses.

Talk to Us About Your Group

Tell us how many clinicians and locations you have, which plans you accept, and what software you use. We will review your aging report and recent denials with you. Contact us to schedule a consultation, or call 800-820-0364.