Active NPI
Ellen Marcus
- Obstetrics & Gynecology Physician
- Pittsburgh, PA
National Provider Identifier
1659001972
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Obstetrics & Gynecology Physician
- License
- MT226319
- Practice address
- 300 Halket St
Pittsburgh, PA 15213-3108 - Phone
- (412) 641-1000
- NPI assigned
- Jun 10, 2022
- Last updated
- Dec 30, 2025
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Obstetrics & Gynecology Physician | 207V00000X | MT226319 | PA | Primary |
Addresses
Primary practice location
300 Halket St
Pittsburgh, PA 15213-3108
Mailing address
3600 Forbes Ave
Pittsburgh, PA 15213-3410
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in PA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20220628000665 | PA | Order and Referring Only - Obstetrics/Gynecology | 5698154219 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MT226319 | PA | MD | Obstetrics & Gynecology Physician |
Interoperability endpoints
- ellen.f.marcus@upmcdirect.com
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1654819200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1767052800000",
"number": "1659001972",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3600 FORBES AVE",
"city": "PITTSBURGH",
"state": "PA",
"postal_code": "152133410"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "300 HALKET ST",
"city": "PITTSBURGH",
"state": "PA",
"postal_code": "152133108",
"telephone_number": "412-641-1000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MARCUS",
"first_name": "ELLEN",
"name_prefix": "Dr.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2022-06-10",
"last_updated": "2025-12-30",
"certification_date": "2025-12-30",
"status": "A"
},
"taxonomies": [
{
"code": "207V00000X",
"taxonomy_group": "",
"desc": "Obstetrics & Gynecology",
"state": "PA",
"license": "MT226319",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Pittsburgh, PA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.