David Montantes
David Montantes is a provider specialising in Community Health Worker in San Francisco, CA, registered under NPI 1003645623. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in San Francisco, based on OpenStreetMap data collected Oct 12, 2026. Parking is available about 0.37 mi away. The nearest transit stop is 873 ft away, served by Mission Street & 22nd Street. A pharmacy sits 699 ft from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 512 ft away.
Getting here and what is nearby
Restaurant Delam 43 ft ~1 min
Restaurant NTR Biryani 98 ft ~1 min
Restaurant Sanguchon 117 ft ~1 min
Coffee Ceré Tea 151 ft ~1 min
Coffee Upfordayz 218 ft ~1 min
Convenience Mr Liquor 301 ft ~2 min
1200 Valencia Street, San Francisco
Mo-Fr 09:00-22:00; Sa,Su 09:00-12:00
Grocery Indian Spices and Grocery 412 ft ~2 min
3265 22nd Street
Coffee The Marsh Cafe 512 ft ~2 min
1070 Valencia Street, San Francisco
Convenience Guerrero Market 637 ft ~3 min
Parking Mission-Bartlett Garage 698 ft ~3 min
3255 21st Street, San Francisco 94110
Mo-Su,PH 07:00-22:00; Fr,Sa 07:00-24:00
Pharmacy Walgreens 699 ft ~3 min
Mo-Su 07:00-23:00
Transit Mission Street & 22nd Street 714 ft ~3 min
Gas station Royal Gas 755 ft ~3 min
Mo-Su,PH 07:00-22:00
Convenience That's It 798 ft ~4 min
Grocery Valencia Farmers Market 799 ft ~4 min
Transit 24th Street & Valencia Street 821 ft ~4 min
Transit Mission Street & 22nd Street 873 ft ~4 min
Hotel Crystal Hotel 919 ft ~4 min
2766 Mission Street
Parking 913 ft ~4 min
1301 Valencia Street
Grocery Valencia Whole Foods 971 ft ~4 min
Hotel Noe's Nest 0.24 mi ~5 min
Hotel El Capitan Hotel 0.36 mi ~8 min
Parking 0.37 mi ~8 min
Gas station Speedway Express 0.49 mi ~10 min
3300 Cesar Chavez Street
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Community Health Worker covers
Community health workers (CHW) are lay members of communities who work either for pay or as volunteers in association with the local health care system in both urban and rural environments and usually share ethnicity, language, socioeconomic status and life experiences with the community members they serve. They have been identified by many titles such as community health advisors, lay health advocates, "promotores(as), outreach educators, community health representatives, peer health promoters, and peer health educators. CHWs offer interpretation and translation services, provide culturally appropriate health education and information, assist people in receiving the care they need, give informal counseling and guidance on health behaviors, advocate for individual and community health needs, and provide some direct services such as first aid and blood pressure screening. Some examples of these practitioners are Community Health Aides or Practitioners established under 25 USC 1616 (l) under HHS, Indian Health Service, Public Health Service. NUCC Health Care Provider Taxonomy, code 172V00000X
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 | 1003645623 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 31, 2024 |
| Last updated | Jul 31, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
1156 VALENCIA ST San Francisco, CA 94110 (415) 777-0333 |
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 | 6 | 4 | 5 | 6 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 4 | 1 | 6 | 4 |
Sum = 47 · next multiple of 10 = 50 · check digit = 3 · actual last digit = 3
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.