Gregory Olivier Mathelier, MD
Emergency Medicine Physician · Pittsburgh, PA
Gregory Olivier Mathelier, MD is an emergency medicine physician with a practice address in Pittsburgh, Pennsylvania, and NPI 1386227577, issued on May 4, 2021. Check the license on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Gregory Olivier Mathelier
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- D98944 MD
Self-reported in NPPES; status is on the state search - Practice location
- 200 Lothrop St, Pittsburgh, PA 15213
- Phone
- (412) 647-3333
- Enumerated
- May 4, 2021
- Record last updated
- Sep 30, 2024
- Medicare enrollment
- Enrolled (PECOS I20241112002337); accepts Medicare assignment
- Medical or professional school
- Howard University College Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,911 in Pennsylvania → Look up another NPI →
Also registered at 200 Lothrop St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory Olivier Mathelier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)Check the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
44% fewer Medicare Part D claims than the average emergency medicine physician in 2024
126 Medicare Part D claims for 102 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Ondansetron Odt15 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.
Bills Medicare through one group practice
- Hospitalist Medicine Physicians OF Maryland-Frederick PCFrederick, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Olivier Mathelier among 3,911 emergency medicine physician records in Pennsylvania
Gregory Olivier Mathelier, MD 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 2021, is newer than 83% of them.
- NPI issued2021 · 83% of these records are older, 12% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2021 · median 2013 among the 2,231 with a school on file
- Record last updated2024 · 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).
424 emergency medicine physician records list a practice address in Pittsburgh
They are 424 of the 28,866 NPPES records with a practice address in Pittsburgh, and 3,911 emergency medicine physician records in Pennsylvania.
All 3,911 in Pennsylvania → Every provider in Pittsburgh → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Aaron Brown, M.D.Pittsburgh, PA 152131508056375
- Stacie Byers, DOPittsburgh, PA 152131982663225
- Christopher Cole, MDPittsburgh, PA 152131447294517
- Keith ConoverPittsburgh, PA 152131265413363
- Ankur Doshi, MDPittsburgh, PA 152131659371359
- Orooj Fasiuddin, MDPittsburgh, PA 152131467426072
- Christian Martin-Gill, M.D.Pittsburgh, PA 152131043412943
- Vincent Mosesso, MDPittsburgh, PA 152131326012089
Common questions
What is Gregory Olivier Mathelier, MD's NPI number?
Gregory Olivier Mathelier, MD's National Provider Identifier (NPI) is 1386227577, issued on May 4, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Olivier Mathelier, MD located?
The NPPES record lists a practice address at 200 Lothrop St, Pittsburgh, PA, 15213. Phone: (412) 647-3333. Providers update this record themselves, so call before visiting.
How can I verify Gregory Olivier Mathelier, MD's license?
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 Olivier Mathelier, MD prescribe under Medicare Part D?
In 2024, Gregory Olivier Mathelier, MD had 126 Medicare Part D claims for 102 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.