Steven Sondheimer, MD
NPI 1245265123 · Obstetrics & Gynecology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Sondheimer, MD is a Obstetrics & Gynecology Physician provider in Philadelphia, PA (NPI 1245265123).
Provider details
- NPI number
- 1245265123
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD016934E (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2006-07-11
- Last updated
- 2019-10-18
Frequently asked questions
- What is Steven Sondheimer's NPI number?
- Steven Sondheimer's National Provider Identifier (NPI) is 1245265123, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Sondheimer's specialty?
- Steven Sondheimer is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Sondheimer located?
- Steven Sondheimer's practice location on file with NPPES is 3400 Spruce St, Philadelphia, PA 19104-4238.
- What is Steven Sondheimer's phone number?
- The practice phone number listed in the NPPES registry for Steven Sondheimer is (215) 615-5234.
- Does Steven Sondheimer accept Medicare?
- Steven Sondheimer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Sondheimer's NPI active?
- Yes — Steven Sondheimer's NPI (1245265123) is active in the NPPES registry as of the last update on 2019-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.