We add value by handling matters of insurance for your practice:No more claim denials
MCM South is a mental health billing company for psychotherapists and psychiatrists — verification, clean claims, appeals, credentialing, and EAP billing handled end to end, so the practice gets paid and you get back to patients.
Look up any billing term
783 plain-English definitions, written by a mental health billing company that files these claims every day. Every result opens in the Billing Terms Glossary.
Your claim’s whole journey, handled
From the first benefits check to the payment posting — every step your mental health billing company handles, including the appeal if a payer pushes back.
Benefits Verification
Coverage & cost-share confirmed
Patient Scheduled
Booked with benefits known
Patient Payment
Copay or deductible collected
Patient Session
The visit happens & is documented
Claim Submission
Clean electronic claim filed
Claim Reconciliation
Payer response matched & posted
Claim Finalization
Corrections & appeals resolved
Claim Payment
Payer pays the practice
EOB / ERA
Remittance reviewed & on file
A mental health billing company that only does your specialty
One specialty, the whole cycle
Mental and behavioral health billing is all we do — verification through appeal — since 2010. No generalist shop splitting its attention across twenty specialties.
Therapists and psychiatrists, both
Psychotherapy codes, E/M visits with add-on codes, EAP sessions — we bill what solo practices and groups actually see, and we know what changes when you add providers.
A founder who’s done the work
Michael Williams spent seven years consulting for SimplePractice, working with the EHR team and the clearinghouse on real, ANSI-compliant claims — experience, not outsourced guesswork.
Eight services. One job: getting your claims paid.
Eight mental health billing services — pick one, or watch it walk through all eight.
Billing knowledge from inside the system
“I spent seven years consulting for SimplePractice, working with their EHR team and the clearinghouse to turn provider needs into working, ANSI-compliant claims. That’s the experience this company runs on.”
Michael Williams founded the mental health billing company MCM South Medical Billing Service, LLC in 2010 in Georgia and Massachusetts — mental and behavioral health billing for solo and medium-size practices, and nothing else.
Disclosure: MCM South is a SimplePractice affiliate and may earn a commission from links to SimplePractice.
The latest from the blog
Billing guidance from your mental health billing company — four staple categories plus two that rotate weekly. The spotlight moves on its own, or click any category to read.
Ten states today, experience in all fifty
MCM South has billed for practices in all 50 states over the years.
Common questions
Does MCM South work with psychiatrists as well as therapists?
What states does MCM South serve?
Do you bill out-of-network claims?
Ready to stop fighting your billing?
Tell us what’s stuck — denials, credentialing, a claims backlog — and get a plain-English read on it from a mental health billing company that works one specialty only.