Gary R. Horowitz, DO
Neurology Physician · Philadelphia, PA
Gary R. Horowitz, DO is a neurology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1417925017, issued on Mar 9, 2006. Check the license (Pennsylvania OS002910L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Gary R. Horowitz
- Credential
- DO
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- OS002910L PA
Self-reported in NPPES; status is on the state search - Practice location
- 5401 Old York RD, Philadelphia, PA 19141
- Phone
- (215) 456-7190
- Enumerated
- Mar 9, 2006
- Record last updated
- Oct 26, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicaid ID
- 0006889700002 PA
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 1,077 in Pennsylvania → Look up another NPI →
Also registered at 5401 Old York RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amro Abdulsattar, M.DNeurology Physician1316206667
- Richard Bennett, MDNeurology Physician1861446700
- Daniel Birnbaum, D.O.Epilepsy Physician1538421433
- Christopher Bradley, M.D., PH.D.Neurology Physician1164580098
- Christopher Brennan, ODOptometrist1801806625
- Rashad Choudry, MDVascular Surgery Physician1407077316
Verify Gary R. Horowitz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS002910LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average neurology physician in 2024
14 Medicare Part D claims, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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.
Gary R. Horowitz among 1,077 neurology physician records in Pennsylvania
Gary R. Horowitz, DO 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 fileNo · 68% of these records are
- Record last updated2011 · 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
- Amro Abdulsattar, M.DPhiladelphia, PA 191411316206667
- Richard Bennett, MDPhiladelphia, PA 191411861446700
- Christopher Bradley, M.D., PH.D.Philadelphia, PA 191411164580098
- Jonathan Dissin, MDPhiladelphia, PA 191411518927276
- Gabriella GarciaPhiladelphia, PA 191411467958066
- David Hammer, M.D.Philadelphia, PA 191411811307507
- Anahid Kabasakalian, MDPhiladelphia, PA 191411467671396
- Mia KoPhiladelphia, PA 191411942613369
Common questions
What is Gary R. Horowitz, DO's NPI number?
Gary R. Horowitz, DO's National Provider Identifier (NPI) is 1417925017, issued on Mar 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gary R. Horowitz, DO located?
The NPPES record lists a practice address at 5401 Old York RD, Philadelphia, PA, 19141. Phone: (215) 456-7190. Providers update this record themselves, so call before visiting.
How can I verify Gary R. Horowitz, DO's license?
NPPES lists Pennsylvania license number OS002910L, 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 Gary R. Horowitz, DO prescribe under Medicare Part D?
In 2024, Gary R. Horowitz, DO had 14 Medicare Part D claims; 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.