Charles Buck, MD
NPI 1831152826 · Emergency Medicine Physician · Federal Way, WA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charles Buck, MD is a Emergency Medicine Physician provider in Federal Way, WA (NPI 1831152826).
Provider details
- NPI number
- 1831152826
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD00039232 (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
20 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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 25 | 23 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 16 | 16 |
| Azithromycin | 14 | 13 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 14 | 14 |
| Cephalexin | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude 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.
Practice location
Mailing address
Additional practice locations (1)
- 209 Martin Luther King Jr WayTacoma, WA 98405-4265Phone: (253) 596-3300
Registry dates
- Enumerated
- 2006-04-10
- Last updated
- 2021-05-18
- Certified
- 2021-05-18
Frequently asked questions
- What is Charles Buck's NPI number?
- Charles Buck's National Provider Identifier (NPI) is 1831152826, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charles Buck's specialty?
- Charles Buck is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charles Buck located?
- Charles Buck's practice location on file with NPPES is 34515 9th Ave S, Federal Way, WA 98003-6761.
- What is Charles Buck's phone number?
- The practice phone number listed in the NPPES registry for Charles Buck is (253) 952-7971.
- Does Charles Buck accept Medicare?
- Charles Buck is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charles Buck's NPI active?
- Yes — Charles Buck's NPI (1831152826) is active in the NPPES registry as of the last update on 2021-05-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.