Mason J. Carp, MD
Gynecology Physician · Harrisburg, PA
Mason J. Carp, MD is a gynecology physician with a practice address in Harrisburg, Pennsylvania, and NPI 1407959620, issued on Sep 6, 2006. Check the license (Pennsylvania MD023053E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Mason J. Carp
- Credential
- MD
- Primary taxonomy
- Gynecology Physician 207VG0400X
- License number
- MD023053E PA
Self-reported in NPPES; status is on the state search - Practice location
- 4212 Linglestown RD, Harrisburg, PA 17112
- Phone
- (717) 657-7025
- Enumerated
- Sep 6, 2006
- Record last updated
- Sep 25, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (717) 657-8086
- Entity
- Type 1 · individual
8 nearest gynecology physician records → All 169 in Pennsylvania → Look up another NPI →
Also registered at 4212 Linglestown RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ryan Semendinger, DCChiropractor1396389052
Verify Mason J. Carp in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD023053ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average gynecology physician in 2024
18 Medicare Part D claims, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D.
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.
Mason J. Carp among 169 gynecology physician records in Pennsylvania
Mason J. Carp, MD is one of 169 gynecology physician records with a practice address in Pennsylvania. 59% 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 17% of them.
- NPI issued2006 · 17% of these records are older, 33% newer
- In a Medicare fileYes · 59% of these records are
- In the CMS Doctors and Clinicians fileNo · 33% of these records are
- Record last updated2020 · 80% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VG0400X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecology Physician providers in Pennsylvania
There are 169 gynecology physician records in Pennsylvania.
All 169 in Pennsylvania → Every provider in Harrisburg → Gynecology Physician nationwide →
The 8 gynecology physician records with the nearest ZIP codes
- Robert Bakelaar, M.D.Harrisburg, PA 171111487813267
- James Christman, M.D.Lebanon, PA 170461275585093
- David Clark, M.D.Lebanon, PA 170461740236579
- Samuel Paterniti, M.D.Lebanon, PA 170461356397046
- Donald Adams, M.D.Lemoyne, PA 170431245210921
- Margaret Grotzinger, M.D.Lemoyne, PA 170431902886922
- Alexi Achenbach, MDLebanon, PA 170421932397452
- Maryanne McLaughlin, M.D.Lebanon, PA 170421033162151
Common questions
What is Mason J. Carp, MD's NPI number?
Mason J. Carp, MD's National Provider Identifier (NPI) is 1407959620, issued on Sep 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mason J. Carp, MD located?
The NPPES record lists a practice address at 4212 Linglestown RD, Harrisburg, PA, 17112. Phone: (717) 657-7025. Providers update this record themselves, so call before visiting.
How can I verify Mason J. Carp, MD's license?
NPPES lists Pennsylvania license number MD023053E, 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 Mason J. Carp, MD prescribe under Medicare Part D?
In 2024, Mason J. Carp, MD had 18 Medicare Part D claims; the average among gynecology physician prescribers was 299. 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.