Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Mark Anthony Ritter, MDRPH

Individual provider Child & Adolescent Psychiatry Physician · NPI 1265579387

Mark Anthony Ritter, MDRPH practises Psychiatry in Fairfax, Virginia. Graduated from Wayne State University School of Medicine in 2001, 25 years ago. Practices with Adventist Physician Services Inc, a 144-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
25
Trained at
Wayne State University School of Medicine
Licensed in
MD
In the registry since
2007
Specialties on file
2

Practice location Address checks out

4375 Fair Lakes Ct
Fairfax, VA 22033-4234
Phone: (571) 432-2600
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence D61197 (MD)
Child & Adolescent Psychiatry Physician Taxonomy 2084P0804X · Licence D0061197 (MD)

Record details

NPI number1265579387
Entity typeIndividual (Type 1)
GenderMale
Credentials MDRPH
Sole proprietorYes
NPI enumeratedJanuary 30, 2007
Last updated in NPPESJune 17, 2025
Certification dateJune 17, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2001 (25 years in practice)
Group practice Adventist Physician Services Inc — 144 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients46
Services billed 164 a service is one billed item, such as a visit, a test or a procedure
Average patient age45

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Adventist Physician Services Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 144 clinicians in the practice; 12 are shown here.

Other providers in Fairfax