Dr. Max Akihiro MacMillan, MD
- Medicare services, 2024
- 206
- Medicare patients, 2024
- 94
- Part D claims, 2024
- 143
- Hospital affiliations
- 3
- Industry payments
- $602
- Practice address
- 10862 Calle Verde, La Mesa, CA 91941
- Practice phone
- Call (619) 660-1814
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Scripps Clinic Rancho San Diego
Mammography / Breast Imaging Center · La Mesa, California
Find Dr. MacMillan's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Max Akihiro MacMillan is an internist in La Mesa, California
Dr. MacMillan practices at Scripps Clinic Rancho San Diego in La Mesa, California.
Dr. MacMillan's NPI, 1295355303, was assigned on April 17, 2020. Dr. MacMillan graduated from UC San Diego School of Medicine in 2020. Dr. MacMillan holds California license A186038.
- NPI
- 1295355303NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587026711
- NPI enumeration date
- April 17, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (619) 660-1814
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Max Akihiro MacMillan practices at Scripps Clinic Rancho San Diego in La Mesa, California
Dr. MacMillan's primary practice is Scripps Clinic Rancho San Diego, at 10862 Calle Verde, La Mesa, CA 91941. The practice phone is (619) 660-1814.
- Scripps Clinic Rancho San Diego10862 Calle Verde, La Mesa, CA 91941Phone(619) 660-1814
Source: Dmand AI Affiliation Data
Dr. Max Akihiro MacMillan is affiliated with 7 sites of care and 2 medical groups
Dr. MacMillan's primary practice is Scripps Clinic Rancho San Diego in La Mesa, California. Dr. MacMillan is also affiliated with Scripps Memorial Hospital La Jolla. The medical group on file is Scripps Clinic Medical Group. Dmand AI also links Dr. MacMillan to 2 more hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Max Akihiro MacMillan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. MacMillan practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Scripps Clinic Rancho San Diego | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Max Akihiro MacMillan is one of 16,751 internists in California
Internal medicine is Dr. MacMillan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. MacMillan is board certified in internal medicine by the American Board of Internal Medicine. Dr. MacMillan is licensed in California.
Specialties and state licenses
- Internal medicine, CaliforniaPrimary
Internists near Dr. MacMillan
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Max Akihiro MacMillan billed Medicare for 206 services in 2024
CMS data shows 206 Medicare services from Dr. MacMillan across 7 procedure codes in 2024, for 94 Medicare patients. Medicare paid $14,561 for them. Every service was in an office.
Dr. MacMillan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 152024: 121707%
- Other services
- 2023: 02024: 70
- Tests and treatments
- 2023: 02024: 15
Dr. MacMillan compared with the California median for internists, 2024
- Dr. MacMillan
- California median
- Medicare services
- 206vs 36143% below
- Medicare patients
- 94vs 15138% below
Medians across 15,815 internists in California with Dmand AI profiles that report each measure.
Dr. MacMillan's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. MacMillan and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Max Akihiro MacMillan treated 94 Medicare patients in 2024, average age 76
CMS counts 94 Medicare patients who saw Dr. MacMillan in 2024. The largest group is 65 to 74, with 41 patients. 70% of them have high cholesterol, and 69% have high blood pressure. 13% are also on Medicaid. Their average risk score is 1.28, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. MacMillan's median patient age at 46, with 51% women.
Dr. MacMillan's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. MacMillan's Medicare patients by sex, 2024
- Women5457%
- Men4043%
Chronic conditions among Dr. MacMillan's Medicare patients, 2024
- High cholesterol70%
- High blood pressure69%
- Arthritis44%
- Chronic kidney disease28%
- Atrial fibrillation26%
- Ischemic heart disease24%
- Anxiety21%
- Diabetes21%
Share of Medicare patients with each condition. A patient can have several.
Dr. MacMillan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Max Akihiro MacMillan wrote 143 Medicare Part D claims in 2024
In 2024, Dr. MacMillan wrote 143 Medicare Part D claims for 50 patients. 90% of them were for generic drugs.
Dr. MacMillan's Part D claims by kind of drug, 2024
- Generic128 claims90%
- Brand-name15 claims10%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Max Akihiro MacMillan offers telehealth to Medicare patients
Dr. MacMillan accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. MacMillan as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Max Akihiro MacMillan received $602 in industry payments from 2022 to 2025
CMS Open Payments shows 28 general payments to Dr. MacMillan from 9 drug and device companies from 2022 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $156.
General payments to Dr. MacMillan by program year, 2022 to 2025
Companies that paid Dr. MacMillan the most, 2022 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Max Akihiro MacMillan graduated from UC San Diego School of Medicine
Dr. MacMillan graduated from UC San Diego School of Medicine in 2020.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Max Akihiro MacMillan accepts plans from 5 insurance carriers
Dr. MacMillan is in network with 5 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Dr. MacMillan accepts, by number of carriers
- HMO3
- Medicare3
- POS3
- PPO3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Max Akihiro MacMillan's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Max Akihiro MacMillan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Max Akihiro MacMillan's NPI number?
Dr. Max Akihiro MacMillan's NPI number is 1295355303. It was assigned on April 17, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Max Akihiro MacMillan?
Dr. Max Akihiro MacMillan is an internist in La Mesa, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Max Akihiro MacMillan practice?
Dr. MacMillan practices at 10862 Calle Verde, La Mesa, CA 91941. Dr. MacMillan's primary practice is Scripps Clinic Rancho San Diego in La Mesa, California. Dmand AI also links Dr. MacMillan to 2 hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group.
What is Dr. Max Akihiro MacMillan's office phone number?
The practice phone on file for Dr. MacMillan is (619) 660-1814.
What is Dr. Max Akihiro MacMillan's medical license number?
Dr. MacMillan holds California license A186038.
Which hospitals is Dr. Max Akihiro MacMillan affiliated with?
Dr. MacMillan is affiliated with Scripps Memorial Hospital La Jolla. Dmand AI links Dr. MacMillan to 2 more hospitals.
What medical group is Dr. Max Akihiro MacMillan part of?
Dr. MacMillan is linked to Scripps Clinic Medical Group. Dmand AI links Dr. MacMillan to 1 more medical group.
Does Dr. Max Akihiro MacMillan accept Medicare?
Yes. CMS data shows Dr. MacMillan billed Medicare for 206 services in 2024, and Dr. MacMillan accepts Medicare assignment.
Does Dr. Max Akihiro MacMillan offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. MacMillan as offering telehealth services.
How many Medicare patients does Dr. Max Akihiro MacMillan see?
CMS counts 94 Medicare patients who saw Dr. MacMillan in 2024, with an average age of 76.
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Is Dr. Max Akihiro MacMillan board certified?
Yes. Dr. MacMillan is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Max Akihiro MacMillan bill to Medicare?
In 2024, Dr. MacMillan's most billed Medicare services were medicare service (G2211), office visit, established patient (99214) and care management and other visits (99491).
Where did Dr. Max Akihiro MacMillan go to medical school?
Dr. MacMillan graduated from UC San Diego School of Medicine in 2020.
Has Dr. Max Akihiro MacMillan received payments from drug or device companies?
CMS Open Payments shows $602 in general payments to Dr. MacMillan from 9 companies from 2022 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Max Akihiro MacMillan been practicing?
Dr. MacMillan graduated from medical school in 2020, 6 years ago.
What insurance does Dr. Max Akihiro MacMillan accept?
Dr. MacMillan is in network with 5 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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