What is Aaron Anderson's NPI number?

Aaron Anderson's National Provider Identifier (NPI) is 1003057381, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Aaron Anderson's specialty?

Aaron Anderson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).

Where is Aaron Anderson located?

Aaron Anderson's practice location on file with NPPES is 510 W 1st Ave, Toppenish, WA 98948-1564.

What is Aaron Anderson's phone number?

The practice phone number listed in the NPPES registry for Aaron Anderson is (509) 865-5600.

Does Aaron Anderson accept Medicare?

Aaron Anderson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Aaron Anderson's NPI active?

Yes — Aaron Anderson's NPI (1003057381) is active in the NPPES registry as of the last update on 2021-03-02.

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Aaron Anderson, D.O.

NPI 1003057381 · Internal Medicine Physician · Toppenish, WA

Aaron Anderson, D.O. is a Internal Medicine Physician provider in Toppenish, WA (NPI 1003057381).

Provider details

NPI number: 1003057381
Entity type: Individual
Primary specialty: Internal Medicine PhysicianAllopathic & Osteopathic Physicians
Credential: D.O.
Sex: Male
Sole proprietor: No
License: OP60069390 (WA)

Practice location

510 W 1st Ave

Toppenish, WA 98948-1564

Phone: (509) 865-5600

Fax: (509) 865-5783

Street-level locationGet directions

More WA providers

Mailing address

510 W 1st Ave

Toppenish, WA 98948-1564

Specialties & taxonomies

Internal Medicine PhysicianPrimary207R00000XLicense OP60069390 (WA)
Allopathic & Osteopathic Physicians

Additional practice locations (1)

518 W 1st Ave
Toppenish, WA 98948-1564
Phone: (509) 865-5600

Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
17 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
2 documented practice locations

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 99 distinct drugs on file.

Drug	Part D claims (2024)	Beneficiaries
Atorvastatin Calcium	333	134
Empagliflozinbrand: Jardiance	209	64
Valsartan/Hydrochlorothiazidebrand: Valsartan-Hydrochlorothiazide	199	64
Amlodipine Besylate	171	67
Omeprazole	169	53
Lisinopril	158	61
Gabapentin	151	45
Losartan Potassium	130	48

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Enumerated: 2009-03-16
Last updated: 2021-03-02
Certified: 2021-03-02

Frequently asked questions

What is Aaron Anderson's NPI number?: Aaron Anderson's National Provider Identifier (NPI) is 1003057381, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Aaron Anderson's specialty?: Aaron Anderson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
Where is Aaron Anderson located?: Aaron Anderson's practice location on file with NPPES is 510 W 1st Ave, Toppenish, WA 98948-1564.
What is Aaron Anderson's phone number?: The practice phone number listed in the NPPES registry for Aaron Anderson is (509) 865-5600.
Does Aaron Anderson accept Medicare?: Aaron Anderson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Aaron Anderson's NPI active?: Yes — Aaron Anderson's NPI (1003057381) is active in the NPPES registry as of the last update on 2021-03-02.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Additional practice locations (1)

Profile Score

What this provider prescribes (Medicare Part D)

Registry dates

Frequently asked questions

Specialties & taxonomies

Additional practice locations (1)

Frequently asked questions

Profile Score

What this provider prescribes (Medicare Part D)