Marian Chang, PHARM.D.
NPI 1558441303 · Pharmacist · Daly City, CA
Marian Chang, PHARM.D. is a Pharmacist provider in Daly City, CA (NPI 1558441303).
Provider details
- NPI number
- 1558441303
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- PHARM.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 52150 (CA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hcl | 206 | 70 |
| Glipizide | 198 | 69 |
| Metformin Hclbrand: Metformin Hcl Er | 147 | 53 |
| Insulin Nph Human Isophanebrand: Humulin N | 133 | 45 |
| Atorvastatin Calcium | 103 | 32 |
| Syringe and Needle,insulin,1mlbrand: Veo Insulin Syringe | 76 | 28 |
| Glipizide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-16
- Last updated
- 2021-12-17
- Certified
- 2021-12-17
Frequently asked questions
- What is Marian Chang's NPI number?
- Marian Chang's National Provider Identifier (NPI) is 1558441303, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marian Chang's specialty?
- Marian Chang is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Marian Chang located?
- Marian Chang's practice location on file with NPPES is 395 Hickey Blvd, Daly City, CA 94015-2770.
- What is Marian Chang's phone number?
- The practice phone number listed in the NPPES registry for Marian Chang is (650) 758-5307.
- Is Marian Chang's NPI active?
- Yes — Marian Chang's NPI (1558441303) is active in the NPPES registry as of the last update on 2021-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.