Jay Gershow, M.D. , Inc
NPI 1821255696 · Hematology & Oncology Physician · San Francisco, CA
Jay Gershow, M.D. , Inc is a Hematology & Oncology Physician organization in San Francisco, CA (NPI 1821255696).
Provider details
- NPI number
- 1821255696
- Entity type
- Organization
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Jay Gershow, President(415) 346-7223
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
Mailing address
Registry dates
- Enumerated
- 2008-05-20
- Last updated
- 2008-05-20
Frequently asked questions
- What is Jay Gershow, M.D. , Inc's NPI number?
- Jay Gershow, M.D. , Inc's National Provider Identifier (NPI) is 1821255696, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Jay Gershow, M.D. , Inc?
- Jay Gershow, M.D. , Inc is classified in the NPPES registry as Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Jay Gershow, M.D. , Inc located?
- Jay Gershow, M.D. , Inc's practice location on file with NPPES is 2300 Sutter St, San Francisco, CA 94115-3037.
- What is Jay Gershow, M.D. , Inc's phone number?
- The practice phone number listed in the NPPES registry for Jay Gershow, M.D. , Inc is (415) 346-7223.
- Who is the authorized official for Jay Gershow, M.D. , Inc?
- The authorized official listed on Jay Gershow, M.D. , Inc's NPPES record is Jay Gershow, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Jay Gershow, M.D. , Inc's NPI active?
- Yes — Jay Gershow, M.D. , Inc's NPI (1821255696) is active in the NPPES registry as of the last update on 2008-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.