Harry Wynn-Williams, MD
NPI 1548766678 · Emergency Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Harry Wynn-Williams, MD is a Emergency Medicine Physician provider in Seattle, WA (NPI 1548766678).
Provider details
- NPI number
- 1548766678
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD61241541 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
510 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 182 | $177 |
| Electrocardiogram (ecg) 1 to 3 Leads With Review By Physician Only93042 | 136 | $7 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 104 | $8 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 58 | $119 |
| Critical Care, First 30-74 Minutes99291 | 16 | $215 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 14 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 27 | 27 |
| Cefpodoxime Proxetil | 17 | 17 |
| Ondansetronbrand: Ondansetron Odt | 14 | 14 |
| Doxycycline Hyclate | 14 | 14 |
| Ibuprofen | 14 | 14 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 13 | 13 |
| Cephalexin | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-05
- Last updated
- 2023-08-22
- Certified
- 2023-08-22
Frequently asked questions
- What is Harry Wynn-Williams's NPI number?
- Harry Wynn-Williams's National Provider Identifier (NPI) is 1548766678, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harry Wynn-Williams's specialty?
- Harry Wynn-Williams is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Harry Wynn-Williams located?
- Harry Wynn-Williams's practice location on file with NPPES is 325 9th Ave, Seattle, WA 98104-2499.
- What is Harry Wynn-Williams's phone number?
- The practice phone number listed in the NPPES registry for Harry Wynn-Williams is (206) 744-8334.
- Does Harry Wynn-Williams accept Medicare?
- Harry Wynn-Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Harry Wynn-Williams's NPI active?
- Yes — Harry Wynn-Williams's NPI (1548766678) is active in the NPPES registry as of the last update on 2023-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.