Aaron Anderson, D.O.
Aaron Anderson, D.O. is an Internal Medicine Physician in Toppenish, WA, registered under NPI 1003057381.
Getting there
Here is what surrounds this office in Toppenish, based on OpenStreetMap data collected Sep 3, 2026. Parking is available about 0.48 mi away. If you arrive early, there is a coffee shop 782 ft away.
Getting here and what is nearby
Convenience Lane Market 231 ft ~1 min
Gas station Conoco 330 ft ~2 min
Convenience General Store 348 ft ~2 min
Restaurant DQ Grill & Chill 464 ft ~2 min
Convenience 7-Eleven 655 ft ~3 min
Coffee Fruiteria Los Mangos 782 ft ~3 min
Parking 886 ft ~4 min
Restaurant Taco Bell 961 ft ~4 min
Restaurant KFC 988 ft ~4 min
Gas station Safeway Fuel Station 0.23 mi ~5 min
Grocery Safeway 0.25 mi ~6 min
711 West 1st Avenue, Toppenish 98948
Mo-Fr 06:00-22:00; Sa-Su 06:00-22:00
Hotel Toppenish Inn 0.26 mi ~6 min
Parking 0.37 mi ~8 min
Hotel El Corral Motel 0.39 mi ~8 min
Gas station Highway 97 Truck Plaza 0.47 mi ~10 min
Parking 0.48 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 |
|---|---|---|
| OP60069390 | WA | Internal Medicine Physician primary |
This provider holds licence OP60069390 issued in WA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Internal Medicine
- PAC ID
- 1658417076
- Enrollment ID
- I20091015000030
Medicare enrolment is recorded as approved under the provider type Practitioner - Internal Medicine. 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.
What Internal Medicine covers
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs. NUCC Health Care Provider Taxonomy, code 207R00000X
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 | 1003057381 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 16, 2009 |
| Last updated | Mar 2, 2021 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | D.O. |
| Practice address |
510 W 1ST AVE Toppenish, WA 98948 (509) 865-5600 Fax (509) 865-5783 |
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 | 5 | 7 | 3 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 5 | 5 | 3 | 7 |
Sum = 49 · next multiple of 10 = 50 · 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.