John Chaffee
NPI 1326123126 · Family Medicine Physician · Federal Way, WA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Chaffee is a Family Medicine Physician provider in Federal Way, WA (NPI 1326123126).
Provider details
- NPI number
- 1326123126
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- MD00032096 (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
19 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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 63 | 29 |
| Losartan Potassium | 48 | 23 |
| Lisinopril | 46 | 25 |
| Amlodipine Besylate | 37 | 24 |
| Metoprolol Succinate | 31 | 19 |
| Hydrochlorothiazide | 25 | 13 |
| Metformin Hcl | 24 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-27
- Last updated
- 2012-08-27
Frequently asked questions
- What is John Chaffee's NPI number?
- John Chaffee's National Provider Identifier (NPI) is 1326123126, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Chaffee's specialty?
- John Chaffee is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Chaffee located?
- John Chaffee's practice location on file with NPPES is 32018 23rd Ave S, Federal Way, WA 98003-6022.
- What is John Chaffee's phone number?
- The practice phone number listed in the NPPES registry for John Chaffee is (253) 839-3030.
- Does John Chaffee accept Medicare?
- John Chaffee is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Chaffee's NPI active?
- Yes — John Chaffee's NPI (1326123126) is active in the NPPES registry as of the last update on 2012-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.