William Hwang, MD
NPI 1831345842 · Diagnostic Radiology Physician · Tacoma, WA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Hwang, MD is a Diagnostic Radiology Physician provider in Tacoma, WA (NPI 1831345842).
Provider details
- NPI number
- 1831345842
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD190532 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 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
2,834 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) |
|---|---|---|
| Ct Scan Head Or Brain Without Contrast70450 | 699 | $41 |
| X-Ray of Chest, 1 View71045 | 344 | $9 |
| Ct Scan of Blood Vessels of Neck With Contrast70498 | 253 | $81 |
| Ct Scan of Blood Vessels of Head With Contrast70496 | 245 | $85 |
| Ct Scan of Upper Spine Without Contrast72125 | 211 | $49 |
| X-Ray of Chest, 2 Views71046 | 173 | $11 |
| Ct Scan of Abdomen and Pelvis With Contrast |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-08-09
- Last updated
- 2024-08-30
- Certified
- 2024-08-30
Frequently asked questions
- What is William Hwang's NPI number?
- William Hwang's National Provider Identifier (NPI) is 1831345842, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Hwang's specialty?
- William Hwang is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Hwang located?
- William Hwang's practice location on file with NPPES is 1304 Fawcett Ave Ste 100, Tacoma, WA 98402-1900.
- What is William Hwang's phone number?
- The practice phone number listed in the NPPES registry for William Hwang is (253) 761-4200.
- Does William Hwang accept Medicare?
- William Hwang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Hwang's NPI active?
- Yes — William Hwang's NPI (1831345842) is active in the NPPES registry as of the last update on 2024-08-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.