Larry Seidman, D.O.
NPI 1821041039 · Gynecology Physician · Philadelphia, PA
Enrolled with Medicare as Order and Referring Only - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Larry Seidman, D.O. is a Gynecology Physician provider in Philadelphia, PA (NPI 1821041039).
Provider details
- NPI number
- 1821041039
- Entity type
- Individual
- Primary specialty
- Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- License
- OS003155L (PA)
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
20 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
- 2006-05-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Larry Seidman's NPI number?
- Larry Seidman's National Provider Identifier (NPI) is 1821041039, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Larry Seidman's specialty?
- Larry Seidman is listed in the NPPES registry with a primary specialty of Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Larry Seidman located?
- Larry Seidman's practice location on file with NPPES is 9501 Roosevelt Blvd, Philadelphia, PA 19114-1025.
- What is Larry Seidman's phone number?
- The practice phone number listed in the NPPES registry for Larry Seidman is (215) 676-8111.
- Does Larry Seidman accept Medicare?
- Larry Seidman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Larry Seidman's NPI active?
- Yes — Larry Seidman's NPI (1821041039) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.