What is Ryan Du's NPI number?

Ryan Du's National Provider Identifier (NPI) is 1508752494, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Ryan Du's specialty?

Ryan Du is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).

Where is Ryan Du located?

Ryan Du's practice location on file with NPPES is 505 Parnassus Ave, San Francisco, CA 94143-2204.

What is Ryan Du's phone number?

The practice phone number listed in the NPPES registry for Ryan Du is (626) 586-4542.

Is Ryan Du's NPI active?

Yes — Ryan Du's NPI (1508752494) is active in the NPPES registry as of the last update on 2025-06-16.

IndividualActive

Ryan Du, PHARMD

NPI 1508752494 · Pharmacist · San Francisco, CA

Ryan Du, PHARMD is a Pharmacist provider in San Francisco, CA (NPI 1508752494).

Provider details

NPI number: 1508752494
Entity type: Individual
Primary specialty: PharmacistPharmacy Service Providers
Credential: PHARMD
Sex: Male
Sole proprietor: No
License: 89732 (CA)

Specialties & taxonomies

PharmacistPrimary183500000XLicense 89732 (CA)
Pharmacy Service Providers

Profile Score

Established profile(54/100 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

505 Parnassus Ave

San Francisco, CA 94143-2204

Phone: (626) 586-4542

Street-level locationGet directions

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Mailing address