Jae Chang, PHARM.D.
NPI 1831320977 · Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist · Vallejo, CA
Jae Chang, PHARM.D. is a Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist provider in Vallejo, CA (NPI 1831320977).
Provider details
- NPI number
- 1831320977
- Entity type
- Individual
- Primary specialty
- Pharmacist Clinician (PhC)/ Clinical Pharmacy SpecialistPharmacy Service Providers
- Credential
- PHARM.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 54105 (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
16 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 · 31 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Semaglutidebrand: Ozempic | 158 | 31 |
| Metformin Hclbrand: Metformin Hcl Er | 154 | 68 |
| Atorvastatin Calcium | 152 | 63 |
| Glipizide | 129 | 49 |
| Empagliflozinbrand: Jardiance | 124 | 57 |
| Metformin Hcl | 91 | 40 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-08-06
- Last updated
- 2021-11-24
- Certified
- 2021-11-24
Frequently asked questions
- What is Jae Chang's NPI number?
- Jae Chang's National Provider Identifier (NPI) is 1831320977, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jae Chang's specialty?
- Jae Chang is listed in the NPPES registry with a primary specialty of Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist (Pharmacy Service Providers).
- Where is Jae Chang located?
- Jae Chang's practice location on file with NPPES is 211 Pueblo Way, Vallejo, CA 94591-8220.
- What is Jae Chang's phone number?
- The practice phone number listed in the NPPES registry for Jae Chang is (510) 869-6792.
- Is Jae Chang's NPI active?
- Yes — Jae Chang's NPI (1831320977) is active in the NPPES registry as of the last update on 2021-11-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.