Alexandra Villasante Fricke, MD
Alexandra Villasante Fricke, MD is an Endocrinology, Diabetes & Metabolism Physician in San Francisco, CA, registered under NPI 1003293671. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in San Francisco, based on OpenStreetMap data collected Sep 16, 2026. Parking is available about 0.22 mi away. There is EV charging 0.20 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 381 ft away, served by Columbus Avenue & Jackson Street. A pharmacy sits 0.27 mi from the entrance (Clay Medical Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 300 ft away.
Getting here and what is nearby
Coffee Little Sweet Go 29 ft ~1 min
655 Montgomery Street, San Francisco 94111
Mo-Fr 07:00-18:00; Sa 11:00-18:00
Coffee Maison Nico 234 ft ~1 min
710 Montgomery Street, San Francisco 94111
Tu-Fr 08:00-17:00; Sa-Su 09:00-16:00
Hotel Hilton San Francisco Financial District 197 ft ~1 min
Hotel Balmoral Hotel North # 3 207 ft ~1 min
640 Clay Street, San Francisco 94111
Restaurant Tricolore 214 ft ~1 min
Transit Columbus Avenue & Washington Street 250 ft ~1 min
Restaurant Oolong Noodles 241 ft ~1 min
Restaurant Mangia Tutti Ristorante 266 ft ~2 min
Transit Clay Street & Montgomery Street 299 ft ~2 min
Coffee Starbucks 300 ft ~2 min
565 Clay Street, San Francisco 94111
Mo-Fr 03:00-17:30; Sa,Su 05:00-18:00
Transit Columbus Avenue & Jackson Street 381 ft ~2 min
Convenience Charming Sun Market Inc 669 ft ~3 min
49 Walter U. Lum Place
Hotel Hotel North Beach 741 ft ~3 min
Convenience Wok Shop 902 ft ~4 min
Parking 1,010 ft ~4 min
825 Sansome Street, San Francisco 94113
EV charging 0.20 mi ~4 min
Parking 0.21 mi ~5 min
350 Pacific Avenue
Parking 0.22 mi ~5 min
Broadway, San Francisco 94133
Convenience Dai Lee Food Inc. 0.23 mi ~5 min
878 Washington Street
Pharmacy Walgreens 0.23 mi ~5 min
300 Montgomery Street, San Francisco 94104
Mo-Fr 09:00-13:30,14:00-19:00
Pharmacy Wellman's HealthMart 0.26 mi ~6 min
1053 Stockton Street
Grocery New Asia Market 0.26 mi ~6 min
772 Pacific Avenue, 94133
Pharmacy Clay Medical Pharmacy 0.27 mi ~6 min
929 Clay Street, San Francisco
Grocery Safeway 0.30 mi ~7 min
145 Jackson Street, San Francisco 94111
06:00-21:00
Grocery J & L Vegi Supermarket 0.30 mi ~7 min
1215 Stockton Street
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 331990 | NY | Endocrinology, Diabetes & Metabolism… primary |
| LP03808 | RI | Internal Medicine Physician |
| ME146640 | FL | Endocrinology, Diabetes & Metabolism… |
Licences are recorded in 3 states: NY, RI, FL. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Endocrinology
- PAC ID
- 9931408622
Enrolled in Medicare 4 times, across 4 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| Florida | I20200824000968 | Practitioner - Endocrinology |
| California | I20220825002918 | Practitioner - Endocrinology |
| South Carolina | I20230111000890 | Practitioner - Endocrinology |
| New York | I20241107003458 | Practitioner - Endocrinology |
Medicare enrolment is recorded as approved under the provider type Practitioner - Endocrinology. There are 4 separate enrolment records across 4 states (FL, CA, SC, NY). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 3 states
This provider holds licences in 3 states: Florida, New York and Rhode Island. Multi-state licensure often means the provider works near a state border, covers more than one office, or delivers care by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- ME146640
- Specialty
- Endocrinology, Diabetes & Metabolism…
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Endocrinology, Diabetes & Metabolism covers
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems. NUCC Health Care Provider Taxonomy, code 207RE0101X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207RE0101X | Endocrinology, Diabetes & Metabolism Physician Endocrinology, Diabetes & Metabolism | 331990 | NY | primary |
| 207R00000X | Internal Medicine Physician | LP03808 | RI | |
| 207RE0101X | Endocrinology, Diabetes & Metabolism Physician Endocrinology, Diabetes & Metabolism | ME146640 | FL |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003293671 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 2, 2015 |
| Last updated | Sep 11, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | MD |
| Practice address |
655 MONTGOMERY ST STE 810 San Francisco, CA 94111 (844) 847-8216 Fax (415) 520-9150 |
| Mailing address |
9565 SW 126TH TER Miami, FL 33176 |
| Other names |
Alexandra Villasante Former Legal Business Name |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 2 | 9 | 3 | 6 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 9 | 6 | 6 | 5 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.