Holly Masui, PHARM. D.
NPI 1881773349 · Pharmacist · Baldwin Park, CA
Holly Masui, PHARM. D. is a Pharmacist provider in Baldwin Park, CA (NPI 1881773349).
Provider details
- NPI number
- 1881773349
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Credential
- PHARM. D.
- Sex
- Female
- Sole proprietor
- No
- License
- RPH 41074 (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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Furosemide | 41 | 27 |
| Carvedilol | 39 | 26 |
| Spironolactone | 34 | 22 |
| Hydralazine Hcl | 26 | 16 |
| Sacubitril/Valsartanbrand: Entresto | 25 | 14 |
| Potassium Chloride | 23 | 18 |
| Empagliflozinbrand: Jardiance | 22 | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-03
- Last updated
- 2010-02-19
Frequently asked questions
- What is Holly Masui's NPI number?
- Holly Masui's National Provider Identifier (NPI) is 1881773349, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Holly Masui's specialty?
- Holly Masui is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Holly Masui located?
- Holly Masui's practice location on file with NPPES is 1011 Baldwin Park Blvd, Baldwin Park, CA 91706-5806.
- What is Holly Masui's phone number?
- The practice phone number listed in the NPPES registry for Holly Masui is (626) 851-1011.
- Is Holly Masui's NPI active?
- Yes — Holly Masui's NPI (1881773349) is active in the NPPES registry as of the last update on 2010-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.