Helena Chang
NPI 1366731887 · Urology Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Urology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Helena Chang is a Urology Physician provider in Seattle, WA (NPI 1366731887).
Provider details
- NPI number
- 1366731887
- Entity type
- Individual
- Primary specialty
- Urology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 60751346 (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
15 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tamsulosin Hcl | 222 | 110 |
| Finasteride | 118 | 49 |
| Ibuprofen | 46 | 46 |
| Trospium Chloride | 36 | 14 |
| Ciprofloxacin Hcl | 33 | 31 |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 27 | 23 |
| Mirabegronbrand: Myrbetriq | 23 | 13 |
Practice location
Mailing address
Additional practice locations (2)
- Ucsf Department of Surgery513 Parnassus Avenue, S-321San Francisco, CA 94143-0001Phone: (415) 476-2773
- 1959 Ne Pacific Street Box 356510Seattle, WA 98195-0001Phone: (206) 685-1982
Registry dates
- Enumerated
- 2011-04-05
- Last updated
- 2022-01-06
Frequently asked questions
- What is Helena Chang's NPI number?
- Helena Chang's National Provider Identifier (NPI) is 1366731887, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helena Chang's specialty?
- Helena Chang is listed in the NPPES registry with a primary specialty of Urology Physician (Allopathic & Osteopathic Physicians).
- Where is Helena Chang located?
- Helena Chang's practice location on file with NPPES is 1536 N 115th St Ste 300, Seattle, WA 98133-8400.
- What is Helena Chang's phone number?
- The practice phone number listed in the NPPES registry for Helena Chang is (206) 668-5215.
- Does Helena Chang accept Medicare?
- Helena Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Helena Chang's NPI active?
- Yes — Helena Chang's NPI (1366731887) is active in the NPPES registry as of the last update on 2022-01-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.