James P. Simsarian, M.D.
Neurology Physician · Fairfax, VA
James P. Simsarian, M.D. is a neurology physician with a practice address in Fairfax, Virginia, and NPI 1235108986, issued on Mar 15, 2006. Check the license (Virginia 0101023418, as entered in NPPES) on the Virginia Department of Health Professions; the Medicare figures below come from public CMS files.
- Name
- James P. Simsarian
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 0101023418 VA
Self-reported in NPPES; status is on the state search - Practice location
- 3020 Hamaker CT, Fairfax, VA 22031
- Phone
- (703) 876-0800
- Enumerated
- Mar 15, 2006
- Record last updated
- Jun 8, 2022
- Fax
- (703) 876-0866
- Medicaid IDs
- 6060153 VA
6144969 VA - Medicare enrollment
- Enrolled (PECOS I20080409000673); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 548 in Virginia → Look up another NPI →
Also registered at 3020 Hamaker CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Meagan Adamson, DNP, FNP-BC, MSCNFamily Nurse Practitioner1790061091
- Susan Ammerman, PSYDPsychologist1689128407
- John Basile, M.D.Urology Physician1548235732
- James Baugh, M.D.Pediatrics Physician1073671129
- Lucille Beck, M.DGastroenterology Physician1356332548
- William Bekenstein, M.D.Pediatrics Physician1528104809
Verify James P. Simsarian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersVirginia Department of Health Professions
Search for license 0101023418Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average neurology physician in 2024
1,512 Medicare Part D claims for 195 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Gabapentin122 claims
- Baclofen110 claims
- Pregabalin60 claims
- Donepezil Hcl55 claims
- Kesimpta Pen46 claims
- Teriflunomide44 claims
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.
The practice group's MIPS final score for 2023 (Medicare payment program): 97.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $387.54
12 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Neurology Center OF Fairfax, LtdFairfax, VA
- Phoenix Rehabilitation And Health Services IncCranberry Twp, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James P. Simsarian among 548 neurology physician records in Virginia
James P. Simsarian, M.D. is one of 548 neurology physician records with a practice address in Virginia. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1966 · median 2004 among the 366 with a school on file
- Record last updated2022 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Virginia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Virginia
There are 548 neurology physician records in Virginia.
All 548 in Virginia → Every provider in Fairfax → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Candace Bryan, M.D.Fairfax, VA 220311376750133
- Marco Castro, M.D.Fairfax, VA 220311245209766
- Matthew Churchill, M.D.Fairfax, VA 220311235335993
- Laura Cinski, M.D.Fairfax, VA 220311003006198
- Rahul Dave, M.D., PH.D.Fairfax, VA 220311700101698
- Nicole Dietz, MD, PHDFairfax, VA 220311265595623
- Robert Kurtzke, M.D.Fairfax, VA 220311922067164
- Abigail Lawler, M.D.Fairfax, VA 220311568789741
Common questions
What is James P. Simsarian, M.D.'s NPI number?
James P. Simsarian, M.D.'s National Provider Identifier (NPI) is 1235108986, issued on Mar 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is James P. Simsarian, M.D. located?
The NPPES record lists a practice address at 3020 Hamaker CT, Fairfax, VA, 22031. Phone: (703) 876-0800. Providers update this record themselves, so call before visiting.
How can I verify James P. Simsarian, M.D.'s license?
NPPES lists Virginia license number 0101023418, as entered by the provider. 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 James P. Simsarian, M.D. prescribe under Medicare Part D?
In 2024, James P. Simsarian, M.D. had 1,512 Medicare Part D claims for 195 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is James P. Simsarian, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.