Mark Anthony Ritter, M.D. RPH.
Psychiatry Physician · Fairfax, VA
Mark Anthony Ritter, M.D. RPH. is a psychiatry physician with a practice address in Fairfax, Virginia, and NPI 1265579387, issued on Jan 30, 2007. Check the license on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- Mark Anthony Ritter
- Credential
- M.D. RPH.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- D61197 MD
D0061197 MD
Self-reported in NPPES; status is on the state search - Practice location
- 4375 Fair Lakes CT, Fairfax, VA 22033
- Phone
- (571) 432-2600
- Enumerated
- Jan 30, 2007
- Record last updated
- Jun 17, 2025
- Medicare enrollment
- Enrolled (PECOS I20101230000264); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2001
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 1,395 in Virginia → Look up another NPI →
Also registered at 4375 Fair Lakes CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Armstrong, PA-CMedical Physician Assistant1740236587
- Demetria BrownRegistered Nurse1548066400
- Anthony Charmforoush, M.D.Internal Medicine Physician1902241839
- Su Choi, M.D.Family Medicine Physician1740289719
- Theresa ChristophersenCase Management Registered Nurse1740095884
- Kerry Conway Short, DPT, ATCPhysical Therapist1417111816
Verify Mark Anthony Ritter in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health ProfessionsCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average psychiatry physician in 2024
63 Medicare Part D claims for 14 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Adventist Physician Services IncRockville, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Anthony Ritter among 1,395 psychiatry physician records in Virginia
Mark Anthony Ritter, M.D. RPH. is one of 1,395 psychiatry physician records with a practice address in Virginia. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 43% of them.
- NPI issued2007 · 43% of these records are older, 42% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 41% of these records are
- Graduated2001 · median 2003 among the 567 with a school on file
- Record last updated2025 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Virginia
There are 1,395 psychiatry physician records in Virginia.
All 1,395 in Virginia → Every provider in Fairfax → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Vanessa Freeman, MDFairfax, VA 220331275066755
- Michael Hryvniak, M.D.Fairfax, VA 220331568533693
- Brian Masterson, MD, MPHFairfax, VA 220331225062383
- Ijeoma Nnamani, M.D.Fairfax, VA 220331821265570
- Samina Raja, MDFairfax, VA 220331023336575
- Lan-Anh Tran, D.O.Fairfax, VA 220331316471238
- Ashley Chorath, MDFairfax, VA 220311013411537
- Youjin Chung, MDFairfax, VA 220311194288407
Common questions
What is Mark Anthony Ritter, M.D. RPH.'s NPI number?
Mark Anthony Ritter, M.D. RPH.'s National Provider Identifier (NPI) is 1265579387, issued on Jan 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark Anthony Ritter, M.D. RPH. located?
The NPPES record lists a practice address at 4375 Fair Lakes CT, Fairfax, VA, 22033. Phone: (571) 432-2600. Providers update this record themselves, so call before visiting.
How can I verify Mark Anthony Ritter, M.D. RPH.'s license?
Search the Virginia Department of Health Professions at https://dhp.virginiainteractive.org/lookup/index. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Anthony Ritter, M.D. RPH. prescribe under Medicare Part D?
In 2024, Mark Anthony Ritter, M.D. RPH. had 63 Medicare Part D claims for 14 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.