Gabriel Theodore Tatarian, D.O.
Neurology Physician · Philadelphia, PA
Gabriel Theodore Tatarian, D.O. is a neurology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1164487914, issued on Apr 17, 2006. Check the license (Pennsylvania OS-008458-L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Gabriel Theodore Tatarian
- Credential
- D.O.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- OS-008458-L PA
Self-reported in NPPES; status is on the state search - Practice location
- 1015 Chestnut St Ste 918, Philadelphia, PA 19107
- Phone
- (215) 922-1801
- Enumerated
- Apr 17, 2006
- Record last updated
- Mar 13, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (215) 922-1806
- Medicaid ID
- 01465075 PA
- Medicare enrollment
- Enrolled (PECOS I20080111000067); accepts Medicare assignment
- Medical or professional school
- Rowan University School Of Osteopathic Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 1,077 in Pennsylvania → Look up another NPI →
Verify Gabriel Theodore Tatarian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS-008458-LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
69% more Medicare Part D claims than the average neurology physician in 2024
2,310 Medicare Part D claims for 285 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. 63 claims were for opioids.
Most prescribed
- Donepezil Hcl200 claims
- Gabapentin116 claims
- Gamunex-C108 claims
- Carbidopa-Levodopa99 claims
- Primidone84 claims
- Fluoxetine Hcl64 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.
Industry payments in 2024: $5,246.44
40 payments; by number, the most common kind was food and beverage; the largest payer was TG Therapeutics, Inc. 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 one group practice
- Methodist Associates IN Healthcare, IncPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gabriel Theodore Tatarian among 1,077 neurology physician records in Pennsylvania
Gabriel Theodore Tatarian, D.O. is one of 1,077 neurology physician records with a practice address in Pennsylvania. 83% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 63% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1988 · median 2007 among the 727 with a school on file
- Record last updated2019 · 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 2084N0400X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Pennsylvania
There are 1,077 neurology physician records in Pennsylvania.
All 1,077 in Pennsylvania → Every provider in Philadelphia → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Daniel Feinberg, MDPhiladelphia, PA 191071134151285
- Jon Glass, MDPhiladelphia, PA 191071427025626
- Pedro Gonzalez-Alegre, MDPhiladelphia, PA 191071003808684
- Stacy Horn, DOPhiladelphia, PA 191071962434019
- Howard Hurtig, MDPhiladelphia, PA 191071760414981
- Olga Katz, M.D., PH.D.Philadelphia, PA 191071427050913
- Thomas Leist, M.D.Philadelphia, PA 191071801816681
- Carol Lippa, MDPhiladelphia, PA 191071083664965
Common questions
What is Gabriel Theodore Tatarian, D.O.'s NPI number?
Gabriel Theodore Tatarian, D.O.'s National Provider Identifier (NPI) is 1164487914, issued on Apr 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gabriel Theodore Tatarian, D.O. located?
The NPPES record lists a practice address at 1015 Chestnut St Ste 918, Philadelphia, PA, 19107. Phone: (215) 922-1801. Providers update this record themselves, so call before visiting.
How can I verify Gabriel Theodore Tatarian, D.O.'s license?
NPPES lists Pennsylvania license number OS-008458-L, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Gabriel Theodore Tatarian, D.O. prescribe under Medicare Part D?
In 2024, Gabriel Theodore Tatarian, D.O. had 2,310 Medicare Part D claims for 285 beneficiaries; the average among neurology physician prescribers was 1,370. 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.