IndividualActive
Vivian Mao
NPI 1639995228 · Pharmacist · San Francisco, CA
Vivian Mao is a Pharmacist provider in San Francisco, CA (NPI 1639995228).
Provider details
- NPI number
- 1639995228
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- RPH90335 (CA)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Established profile(55/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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.
Practice location
5280 Geary Blvd
San Francisco, CA 94118-2818
Phone: (415) 668-2041
Street-level locationGet directions
Mailing address
4442 Fulton St
San Francisco, CA 94121-3817
Registry dates
- Enumerated
- 2024-11-27
- Last updated
- 2024-11-27
- Certified
- 2024-11-27
Frequently asked questions
- What is Vivian Mao's NPI number?
- Vivian Mao's National Provider Identifier (NPI) is 1639995228, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Vivian Mao's specialty?
- Vivian Mao is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Vivian Mao located?
- Vivian Mao's practice location on file with NPPES is 5280 Geary Blvd, San Francisco, CA 94118-2818.
- What is Vivian Mao's phone number?
- The practice phone number listed in the NPPES registry for Vivian Mao is (415) 668-2041.
- Is Vivian Mao's NPI active?
- Yes — Vivian Mao's NPI (1639995228) is active in the NPPES registry as of the last update on 2024-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.