Doctor profile · Federal record
Dr. Margaret Macmillan, MD
Family Medicine Physician (CMS: Family Practice) · Santa Cruz, CA
- NPI 1790765287
- Accepts Medicare
- 36 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1203 Mission St
Santa Cruz, CA 950603528
(831) 458-6300
Credentials & registration
- NPI registered
- January 2006 — 20 yrs on file
- Profile last updated
- December 21, 2011
- Year of graduation
- 1990 — 36 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- California #G72046
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1790765287. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
713
Distinct HCPCS
10
Medicare allowed
$77,356
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 188 | 141 | $99 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 143 | 143 | $143 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 126 | 95 | $138 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 119 | 111 | $63 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 31 | 31 | $76 | |
G0008 |
Administration of influenza virus vaccine | 31 | 31 | $34 | |
G0009 |
Administration of pneumococcal vaccine | 22 | 22 | $34 | |
90671 |
Pneumococcal conjugate vaccine, 15 valent (pcv15), for intramuscular use | 19 | 19 | $241 | |
17000 |
Destruction of precancer skin growth, 1 growth | 17 | 15 | $75 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 17 | 14 | $188 |
In context: peer comparison
Among 32 peers in this city , average services per provider: 87. This provider delivers 8.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,688
Patients
470
Total drug cost
$26,364
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 278 | 80 | $3,917 |
| Levothyroxine Sodium | Generic | 191 | 44 | $3,100 |
| Lisinopril | Generic | 182 | 53 | $2,124 |
| Amlodipine Besylate | Generic | 143 | 35 | $1,588 |
| Losartan Potassium | Generic | 119 | 37 | $2,112 |
| Hydrochlorothiazide | Generic | 117 | 32 | $743 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 115 | 19 | $3,463 |
| Omeprazole | Generic | 88 | 32 | $1,213 |
| Alendronate Sodium | Generic | 81 | 26 | $1,130 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 73 | 26 | $982 |
Frequently asked questions
What is Dr. Margaret Macmillan's medical specialty?
Dr. Margaret Macmillan practices Family Medicine Physician in Santa Cruz, CA.
Where does Dr. Margaret Macmillan practice?
Dr. Margaret Macmillan practices at 1203 Mission St, Santa Cruz, CA 950603528. Office phone: 8314586300.
What is Dr. Margaret Macmillan's NPI?
Dr. Margaret Macmillan's National Provider Identifier (NPI) is 1790765287, issued by NPPES.
Does Dr. Margaret Macmillan accept Medicare assignment?
Yes. Dr. Margaret Macmillan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Macmillan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.