Max Akihiro Macmillan, MD
Internal Medicine Physician · La Mesa, CA
Max Akihiro Macmillan, MD is an internal medicine physician with a practice address in La Mesa, California, and NPI 1295355303, issued on Apr 17, 2020. Check the license (California A186038, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Max Akihiro Macmillan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A186038 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10862 Calle Verde, La Mesa, CA 91941
- Phone
- (619) 670-5400
- Enumerated
- Apr 17, 2020
- Record last updated
- Aug 26, 2024
- Medicare enrollment
- Enrolled (PECOS I20230818002693); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2020
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 10862 Calle Verde
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Max Akihiro Macmillan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A186038Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
143 Medicare Part D claims for 50 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% 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.
Industry payments in 2024: $123.97
5 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Scripps HealthLa Jolla, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Max Akihiro Macmillan among 17,696 internal medicine physician records in California
Max Akihiro Macmillan, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 89% of them.
- NPI issued2020 · 89% of these records are older, 8% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2020 · median 2004 among the 11,065 with a school on file
- Record last updated2024 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
61 internal medicine physician records list a practice address in La Mesa
They are 61 of the 2,168 NPPES records with a practice address in La Mesa, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in La Mesa → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Fatma Deif, M.D.La Mesa, CA 919411538553508
- John Fox, M.D.La Mesa, CA 919411316901408
- Carla Fox, M.D.La Mesa, CA 919411649234733
- Jeanne Gromer, M.D.La Mesa, CA 919411659328169
- Denise Honer, M.D.La Mesa, CA 919411396857496
- Karen Hutchinson, M.D.La Mesa, CA 919411982614301
- Michael Magpile, M.D.La Mesa, CA 919411316988843
- Darcy Mock, M.D.La Mesa, CA 919411427324672
Common questions
What is Max Akihiro Macmillan, MD's NPI number?
Max Akihiro Macmillan, MD's National Provider Identifier (NPI) is 1295355303, issued on Apr 17, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Max Akihiro Macmillan, MD located?
The NPPES record lists a practice address at 10862 Calle Verde, La Mesa, CA, 91941. Phone: (619) 670-5400. Providers update this record themselves, so call before visiting.
How can I verify Max Akihiro Macmillan, MD's license?
NPPES lists California license number A186038, 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 Max Akihiro Macmillan, MD prescribe under Medicare Part D?
In 2024, Max Akihiro Macmillan, MD had 143 Medicare Part D claims for 50 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.