Psychology Billing Services: What to Look For Before You Hire

Psychology billing services take over the insurance paperwork for a psychologist’s practice: benefit checks, claims, denial follow-up, and payer enrollment. Choosing one is a business decision, so this guide gives you six things to check first. It is written for psychologists and practice owners who bill insurance.

What do psychology billing services do?

A billing service turns your completed sessions into paid claims. That starts with confirming coverage and ends with posting the payment and working any denial. Our overview of claims processing shows each step.

6 things to check before you hire

1. Behavioral health focus. A company that works only in mental health already knows psychotherapy, testing, and EAP rules. Ask how much of its work is behavioral health.
2. Code knowledge. Psychotherapy codes depend on session length and type. See our individual psychotherapy code guide and diagnostic evaluation guide. Ask how the company confirms codes against payer rules.
3. Denial follow-up. Ask who works denials, how fast you can see their status, and how appeals work. See our denied claim follow-up service.
4. Credentialing. If you add a payer, someone must enroll you. Ask whether credentialing is included.
5. Reporting. You should be able to see what was billed, paid, and denied.
6. Contracts. Ask for a business associate contract, since HIPAA generally requires one with a business associate (HHS, checked 10/21/26), and read the pricing and exit terms.

What stays with the psychologist?

You still document each session, choose the diagnosis, and confirm that the service you report matches the service you gave. Testing and evaluation services may need authorization from some payers, so build the authorization check into your intake. A billing service can remind you, but the clinical record is yours.

In-network, out-of-network, and EAP

Psychologists bill several ways. In-network claims follow your contract. Out-of-network billing depends on the client’s plan and what it reimburses. EAP sessions follow the employer program, not the client’s health plan. Read our guide to in-network vs out-of-network before you decide how to bill.

What documentation supports a psychology claim?

Payers pay for what the record supports. For each session, keep the date, the length of the session, the type of service, the diagnosis, and the clinical content that shows the service was needed. For evaluations and testing, also keep the reason for referral and the plan. If a payer asks for records after it pays, your note is your evidence.

Review your note templates once a quarter so they keep the fields payers ask for, and ask each payer for its documentation policy. A billing service works from your notes, so clear notes make every later step easier.

How MCM South does it

MCM South Medical Billing Service, LLC works only in mental and behavioral health and has since 2010. It serves psychotherapists and psychiatrists in solo and medium-size practices, and it bills in-network, out-of-network, EAP, and secondary claims. See all services, or Get a Free Quote.

Psychology billing services FAQ

Where MCM South works

MCM South serves practices in our ten currently served states: Georgia, Massachusetts, Connecticut, Texas, Florida, New York, Colorado, Tennessee, North Carolina, and Illinois. Plan rules vary by payer and by state, so check each plan before you bill.