Stephen Ostwald, D.D.S.
NPI 1952421653 · General Practice Dentistry · San Francisco, CA
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Ostwald, D.D.S. is a General Practice Dentistry provider in San Francisco, CA (NPI 1952421653).
Provider details
- NPI number
- 1952421653
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 30245 (CA)
Specialties & taxonomies
Dental Providers
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
- 2007-03-29
- Last updated
- 2009-05-11
Frequently asked questions
- What is Stephen Ostwald's NPI number?
- Stephen Ostwald's National Provider Identifier (NPI) is 1952421653, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Ostwald's specialty?
- Stephen Ostwald is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Stephen Ostwald located?
- Stephen Ostwald's practice location on file with NPPES is 1635 Divisadero St, San Francisco, CA 94115-3036.
- What is Stephen Ostwald's phone number?
- The practice phone number listed in the NPPES registry for Stephen Ostwald is (415) 775-3368.
- Does Stephen Ostwald accept Medicare?
- Stephen Ostwald is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Ostwald's NPI active?
- Yes — Stephen Ostwald's NPI (1952421653) is active in the NPPES registry as of the last update on 2009-05-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.