Joseph Anderson, M.D.
Joseph Anderson, M.D. is an Anatomic Pathology Physician in San Rafael, CA, registered under NPI 1003002494.
Getting there
Here is what surrounds this office in San Rafael, based on OpenStreetMap data collected Aug 28, 2026. Parking is available about 0.27 mi away. There is EV charging 0.41 mi from the office (MCE Solar Charge) — useful if you are driving in from out of town. The nearest transit stop is 902 ft away, served by 4th Street & Court Street. A pharmacy sits 0.24 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 898 ft away.
Getting here and what is nearby
Restaurant Flatiron 109 ft ~1 min
Restaurant Uchiwa Ramen 152 ft ~1 min
Parking 238 ft ~1 min
Parking 284 ft ~2 min
Convenience 7-Eleven 366 ft ~2 min
Restaurant Red Rooster Brick Oven 376 ft ~2 min
901 B Street, San Rafael 94901
Grocery Safeway 447 ft ~2 min
Transit 4th Street & C Street 710 ft ~3 min
Gas station Chevron 666 ft ~3 min
Coffee Royal Ground Coffee 718 ft ~3 min
1148 4th Street
Coffee Pink Owl Coffee 778 ft ~3 min
1100 Fourth Street, San Rafael 94901
Mo-Su 07:00-17:00
Transit 4th Street & C Street 853 ft ~4 min
Gas station Arco 853 ft ~4 min
Transit 4th Street & Court Street 902 ft ~4 min
Coffee Graffeo's Coffee Roastery 898 ft ~4 min
1314 4th Street
Hotel AC Hotel San Rafael 951 ft ~4 min
1201 5th Avenue
Pharmacy Walgreens 0.24 mi ~5 min
EV charging ChargePoint 0.26 mi ~6 min
Gas station Matt & Jeff'st 0.26 mi ~6 min
Hotel Panama Hotel 0.26 mi ~6 min
EV charging ChargePoint 0.27 mi ~6 min
Parking 0.27 mi ~6 min
Mo-Su 05:00-24:00; Mo-Su 00:00-03:00
Grocery Azteca Supermarket 0.32 mi ~7 min
Grocery Sprouts Farmers Market 0.40 mi ~9 min
655 Irwin Street, San Rafael 94901
Mo-Su 07:00-22:00
EV charging MCE Solar Charge 0.41 mi ~9 min
Convenience Shell 0.49 mi ~10 min
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 |
|---|---|---|
| A98379 | CA | Anatomic Pathology Physician primary |
This provider holds licence A98379 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
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 Anatomic Pathology covers
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease. NUCC Health Care Provider Taxonomy, code 207ZP0101X
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 | 1003002494 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 19, 2007 |
| Last updated | Sep 19, 2007 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | M.D. |
| Practice address |
802 B ST San Rafael, CA 94901 (415) 734-8726 Fax (415) 762-4220 |
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 | 0 | 0 | 2 | 4 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 0 | 4 | 4 | 9 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
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.