Gregory J. Harbaugh, D.O.
Emergency Medicine Physician · Greensburg, PA
Gregory J. Harbaugh, D.O. is an emergency medicine physician with a practice address in Greensburg, Pennsylvania, and NPI 1669433918, issued on Mar 28, 2006. Check the license (Pennsylvania OS012140, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Gregory J. Harbaugh
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- OS012140 PA
Self-reported in NPPES; status is on the state search - Practice location
- 532 W Pittsburgh St, Greensburg, PA 15601
- Phone
- (724) 832-4626
- Enumerated
- Mar 28, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (724) 832-4668
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,911 in Pennsylvania → Look up another NPI →
Also registered at 532 W Pittsburgh St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory J. Harbaugh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS012140Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% more Medicare Part D claims than the average emergency medicine physician in 2024
368 Medicare Part D claims for 262 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 59 claims were for opioids.
Most prescribed
- Oxycodone Hcl35 claims
- Ciprofloxacin Hcl30 claims
- Cephalexin26 claims
- Prednisone24 claims
- Ibuprofen23 claims
- Methylprednisolone22 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.
Gregory J. Harbaugh among 3,911 emergency medicine physician records in Pennsylvania
Gregory J. Harbaugh, D.O. is one of 3,911 emergency medicine physician records with a practice address in Pennsylvania. 82% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 69% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2026 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
24 emergency medicine physician records list a practice address in Greensburg
They are 24 of the 1,688 NPPES records with a practice address in Greensburg, and 3,911 emergency medicine physician records in Pennsylvania.
All 3,911 in Pennsylvania → Every provider in Greensburg → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Neil Baum, MDGreensburg, PA 156011760478416
- Michele Belak, M.D.Greensburg, PA 156011881654002
- Christopher Clarkson, M.D.Greensburg, PA 156011538129192
- James Hawkins, M.D.Greensburg, PA 156011508826173
- George Kennedy, M.D.Greensburg, PA 156011780644328
- John Kolonich, M.D.Greensburg, PA 156011457311037
- Mark Persin, D.O.Greensburg, PA 156011457311029
- James Sample, D.O.Greensburg, PA 156011255307435
Common questions
What is Gregory J. Harbaugh, D.O.'s NPI number?
Gregory J. Harbaugh, D.O.'s National Provider Identifier (NPI) is 1669433918, issued on Mar 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory J. Harbaugh, D.O. located?
The NPPES record lists a practice address at 532 W Pittsburgh St, Greensburg, PA, 15601. Phone: (724) 832-4626. Providers update this record themselves, so call before visiting.
How can I verify Gregory J. Harbaugh, D.O.'s license?
NPPES lists Pennsylvania license number OS012140, 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 Gregory J. Harbaugh, D.O. prescribe under Medicare Part D?
In 2024, Gregory J. Harbaugh, D.O. had 368 Medicare Part D claims for 262 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.