Ellen Marcus
NPI 1659001972 · Obstetrics & Gynecology Physician · Pittsburgh, PA
Enrolled with Medicare as Order and Referring Only - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ellen Marcus is a Obstetrics & Gynecology Physician provider in Pittsburgh, PA (NPI 1659001972).
Provider details
- NPI number
- 1659001972
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- MT226319 (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
4 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
- 2022-06-10
- Last updated
- 2025-12-30
- Certified
- 2025-12-30
Frequently asked questions
- What is Ellen Marcus's NPI number?
- Ellen Marcus's National Provider Identifier (NPI) is 1659001972, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Marcus's specialty?
- Ellen Marcus is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Ellen Marcus located?
- Ellen Marcus's practice location on file with NPPES is 300 Halket St, Pittsburgh, PA 15213-3108.
- What is Ellen Marcus's phone number?
- The practice phone number listed in the NPPES registry for Ellen Marcus is (412) 641-1000.
- Does Ellen Marcus accept Medicare?
- Ellen Marcus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ellen Marcus's NPI active?
- Yes — Ellen Marcus's NPI (1659001972) is active in the NPPES registry as of the last update on 2025-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.