Zanetta Chang, MD, PHD
NPI 1205452737 · Internal Medicine Physician · Saint Louis, MO
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Zanetta Chang, MD, PHD is a Internal Medicine Physician provider in Saint Louis, MO (NPI 1205452737).
Provider details
- NPI number
- 1205452737
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 2020016958 (MO)
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
6 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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 75 |
| Atorvastatin Calcium | 41 |
| Dolutegravir/Rilpivirinebrand: Juluca | 26 |
| Doravirine/Lamivu/Tenofov Disobrand: Delstrigo | 21 |
| Dolutegravir Sodiumbrand: Tivicay | 19 |
| Emtricitab/Rilpiviri/Tenof Alabrand: Odefsey | 18 |
| Dolutegravir Sodium/Lamivudinebrand: Dovato | 12 |
| Varicella-Zoster Ge/As01b/Pfbrand: Shingrix | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-06-20
- Last updated
- 2020-06-20
- Certified
- 2020-06-20
Frequently asked questions
- What is Zanetta Chang's NPI number?
- Zanetta Chang's National Provider Identifier (NPI) is 1205452737, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Zanetta Chang's specialty?
- Zanetta Chang is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Zanetta Chang located?
- Zanetta Chang's practice location on file with NPPES is 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110-1003.
- What is Zanetta Chang's phone number?
- The practice phone number listed in the NPPES registry for Zanetta Chang is (314) 362-5000.
- Does Zanetta Chang accept Medicare?
- Zanetta Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Zanetta Chang's NPI active?
- Yes — Zanetta Chang's NPI (1205452737) is active in the NPPES registry as of the last update on 2020-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.