John Doan, M.D.
NPI 1609194398 · Internal Medicine Physician · Portland, OR
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Doan, M.D. is a Internal Medicine Physician provider in Portland, OR (NPI 1609194398).
Provider details
- NPI number
- 1609194398
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 60326101 (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
16 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 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metoprolol Succinate | 75 | 37 |
| Empagliflozinbrand: Jardiance | 60 | 25 |
| Furosemide | 54 | 31 |
| Dabigatran Etexilate Mesylatebrand: Pradaxa | 45 | 14 |
| Metoprolol Tartrate | 39 | 18 |
| Tamsulosin Hcl | 38 | — |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-05-05
- Last updated
- 2016-09-14
Frequently asked questions
- What is John Doan's NPI number?
- John Doan's National Provider Identifier (NPI) is 1609194398, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Doan's specialty?
- John Doan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Doan located?
- John Doan's practice location on file with NPPES is 500 Ne Multnomah St Ste 100, Portland, OR 97232-2031.
- What is John Doan's phone number?
- The practice phone number listed in the NPPES registry for John Doan is (541) 515-2325.
- Does John Doan accept Medicare?
- John Doan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Doan's NPI active?
- Yes — John Doan's NPI (1609194398) is active in the NPPES registry as of the last update on 2016-09-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.