What is Gerald Gellin's NPI number?

Gerald Gellin's National Provider Identifier (NPI) is 1407827405, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Gerald Gellin's specialty?

Gerald Gellin is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).

Where is Gerald Gellin located?

Gerald Gellin's practice location on file with NPPES is 3838 California St, San Francisco, CA 94118-1522.

What is Gerald Gellin's phone number?

The practice phone number listed in the NPPES registry for Gerald Gellin is (415) 668-2400.

Is Gerald Gellin's NPI active?

Yes — Gerald Gellin's NPI (1407827405) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Gerald Gellin, MD

NPI 1407827405 · Dermatology Physician · San Francisco, CA

Gerald Gellin, MD is a Dermatology Physician provider in San Francisco, CA (NPI 1407827405).

Provider details

NPI number: 1407827405
Entity type: Individual
Primary specialty: Dermatology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
License: C20774 (CA)

Specialties & taxonomies

Dermatology PhysicianPrimary207N00000XLicense C20774 (CA)
Allopathic & Osteopathic Physicians

Profile Score

Detailed profile(91/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
20 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.

Practice location

3838 California St

Suite 805

San Francisco, CA 94118-1522

Phone: (415) 668-2400

Fax: (415) 668-6940

Street-level locationGet directions

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Mailing address