Aoife E. Macmahon, MD
Orthopaedic Surgery Physician · San Diego, CA
Aoife E. Macmahon, MD is an orthopaedic surgery physician with a practice address in San Diego, California, and NPI 1366012684, issued on Jun 29, 2021. Check the license (California A206277, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Aoife E. Macmahon
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- A206277 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4250 1St Ave, San Diego, CA 92103
- Phone
- (800) 926-8273
- Enumerated
- Jun 29, 2021
- Record last updated
- Jun 27, 2026
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Also registered at 4250 1St Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Madelyn Bernard, RNAdministrator Registered Nurse1811861297
- Chelsy Letko, PA-CPhysician Assistant1134765738
- Jennifer Smith, MDOrthopaedic Surgery Physician1811218712
- Ephu Yip-Ngo, PHARMDPharmacist1063301422
Verify Aoife E. Macmahon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A206277Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
31 Medicare Part D claims for 13 beneficiaries, against an average of 346 among the 16,516 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.
Aoife E. Macmahon among 2,276 orthopaedic surgery physician records in California
Aoife E. Macmahon, MD is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% 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 97% of them.
- NPI issued2021 · 97% of these records are older, 2% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2026 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in San Diego → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Scott Ball, M.D.San Diego, CA 921031952325318
- Maneesh Bawa, M.D.San Diego, CA 921031952363038
- Michael Bongiovanni, M.D.San Diego, CA 921031992772784
- Dana Covey, M.D.San Diego, CA 921031780651794
- Larry Dodge, M.D.San Diego, CA 921031366404873
- David Fabi, M.D.San Diego, CA 921031326240805
- Paul Girard, M.D.San Diego, CA 921031356319891
- Kevin Kuhn, M.D.San Diego, CA 921031881642098
Common questions
What is Aoife E. Macmahon, MD's NPI number?
Aoife E. Macmahon, MD's National Provider Identifier (NPI) is 1366012684, issued on Jun 29, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Aoife E. Macmahon, MD located?
The NPPES record lists a practice address at 4250 1St Ave, San Diego, CA, 92103. Phone: (800) 926-8273. Providers update this record themselves, so call before visiting.
How can I verify Aoife E. Macmahon, MD's license?
NPPES lists California license number A206277, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Aoife E. Macmahon, MD prescribe under Medicare Part D?
In 2024, Aoife E. Macmahon, MD had 31 Medicare Part D claims for 13 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. 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.