Benjamin Wolsztejn, M.D., F.A.C.O.G.
NPI 1578575445 · Obstetrics & Gynecology Physician · Hayward, CA
Benjamin Wolsztejn, M.D., F.A.C.O.G. is a Obstetrics & Gynecology Physician provider in Hayward, CA (NPI 1578575445).
Provider details
- NPI number
- 1578575445
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., F.A.C.O.G.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A24169 (CA)
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
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-12
- Last updated
- 2010-04-01
Frequently asked questions
- What is Benjamin Wolsztejn's NPI number?
- Benjamin Wolsztejn's National Provider Identifier (NPI) is 1578575445, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Benjamin Wolsztejn's specialty?
- Benjamin Wolsztejn is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Benjamin Wolsztejn located?
- Benjamin Wolsztejn's practice location on file with NPPES is 26929 Halifax Place, Hayward, CA 94542.
- What is Benjamin Wolsztejn's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Wolsztejn is (510) 886-0394.
- Is Benjamin Wolsztejn's NPI active?
- Yes — Benjamin Wolsztejn's NPI (1578575445) is active in the NPPES registry as of the last update on 2010-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.