Benjamin Wolsztejn, MD Inc
NPI 1316959299 · Obstetrics & Gynecology Physician · Castro Valley, CA
Benjamin Wolsztejn, MD Inc is a Obstetrics & Gynecology Physician organization in Castro Valley, CA (NPI 1316959299).
Provider details
- NPI number
- 1316959299
- Entity type
- Organization
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Benjamin Wolsztejn, President(510) 581-7666
- 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
- 2007-07-11
Frequently asked questions
- What is Benjamin Wolsztejn, MD Inc's NPI number?
- Benjamin Wolsztejn, MD Inc's National Provider Identifier (NPI) is 1316959299, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Benjamin Wolsztejn, MD Inc?
- Benjamin Wolsztejn, MD Inc is classified in the NPPES registry as Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Benjamin Wolsztejn, MD Inc located?
- Benjamin Wolsztejn, MD Inc's practice location on file with NPPES is 20130 Lake Chabot Rd, Castro Valley, CA 94546-5340.
- What is Benjamin Wolsztejn, MD Inc's phone number?
- The practice phone number listed in the NPPES registry for Benjamin Wolsztejn, MD Inc is (510) 581-7666.
- Who is the authorized official for Benjamin Wolsztejn, MD Inc?
- The authorized official listed on Benjamin Wolsztejn, MD Inc's NPPES record is Benjamin Wolsztejn, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Benjamin Wolsztejn, MD Inc's NPI active?
- Yes — Benjamin Wolsztejn, MD Inc's NPI (1316959299) is active in the NPPES registry as of the last update on 2007-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.