Amber an, DO
NPI 1538335443 · Geriatric Medicine (Internal Medicine) Physician · Olympia, WA
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Amber an, DO is a Geriatric Medicine (Internal Medicine) Physician provider in Olympia, WA (NPI 1538335443).
Provider details
- NPI number
- 1538335443
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- OP60436404 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Potassium Chloride | 92 | 30 |
| Gabapentin | 83 | 19 |
| Atorvastatin Calcium | 68 | 30 |
| Furosemide | 63 | 26 |
| Amlodipine Besylate | 55 | 24 |
| Sertraline Hcl | 41 | 15 |
| Losartan Potassium | 38 | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-05-01
- Last updated
- 2024-10-15
- Certified
- 2024-10-15
Frequently asked questions
- What is Amber an's NPI number?
- Amber an's National Provider Identifier (NPI) is 1538335443, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Amber an's specialty?
- Amber an is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Amber an located?
- Amber an's practice location on file with NPPES is 700 Lilly Rd Ne, Olympia, WA 98506-5115.
- What is Amber an's phone number?
- The practice phone number listed in the NPPES registry for Amber an is (360) 923-7000.
- Does Amber an accept Medicare?
- Amber an is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Amber an's NPI active?
- Yes — Amber an's NPI (1538335443) is active in the NPPES registry as of the last update on 2024-10-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.