Active NPI
Mason Edward Gentner, MD
- Emergency Medicine Physician
- Saint Louis, MO
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Emergency Medicine Physician
- License
- 2026039078
- Practice address
- 1 Barnes Jewish Hospital PLZ
Saint Louis, MO 63110-1003 - Phone
- (314) 747-3000
- NPI assigned
- Mar 1, 2021
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Emergency Medicine Physician | 207P00000X | 2026039078 | MO | Primary |
| Critical Care Medicine (Internal Medicine) Physician | 207RC0200X | 2026039078 | MO |
Addresses
Primary practice location
1 Barnes Jewish Hospital PLZ
Saint Louis, MO 63110-1003
Mailing address
310 W Losey St
Scott Afb, IL 62225-5250
Phone (618) 256-9355
Other practice location 1
310 W Losey St
Scott AFB, IL 62225-5250
Phone (618) 256-9355
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 01089088A | Other | IN | STATE MEDICAL LICENSE |
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
Care Compare profile
Medicare Care Compare- Specialty
- Emergency Medicine
- Education
- Pennsylvania State University College of Medicine, 2021
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
2 Hot Meal St
Pittsburgh, PA 15203-2348
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 01089088A | IN | MD | Student in an Organized Health Care Education/Training Program |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Upmc Community Medcine Inc | Current | Accepting new patients | |
| University of Pittsburgh Physicians | Current | Accepting new patients | |
| University of Pittsburgh Physicians | Current | Accepting new patients | |
| Upmc Community Medicine, Inc | Current | Accepting new patients | |
| Upmc Community Medicine, Inc | Current | Accepting new patients | |
| University of Pittsburgh Physicians | Current | Accepting new patients |
Locations
3600 Forbes Ave
Ste 140
Pittsburgh, PA 15213
200 Lothrop St
Pittsburgh, PA 15213
Phone (412) 647-3553
339 6th Ave
Fl 5
Pittsburgh, PA 15222
Phone (412) 560-8762
2 Hot Metal St
#One
Pittsburgh, PA 15203
Phone (412) 432-5864
Interoperability endpoints
- mason.gentner@upmcdirect.com
Organizations & group practices 6
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Gastroenterology Physician
- Pittsburgh, PA
- NPI 1619935004
-
- Internal Medicine Physician
- Pittsburgh, PA
- NPI 1558976092
-
- Diagnostic Radiology Physician
- Pittsburgh, PA
- NPI 1285692699
-
- Emergency Medicine Physician
- Pittsburgh, PA
- NPI 1861457830
-
- Family Medicine Physician
- Hermitage, PA
- NPI 1023806676
-
- Gastroenterology Physician
- Wexford, PA
- NPI 1083376644
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1614556800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788220800000",
"number": "1508450602",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "310 W LOSEY ST",
"city": "SCOTT AFB",
"state": "IL",
"postal_code": "622255250",
"telephone_number": "618-256-9355"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1 BARNES JEWISH HOSPITAL PLZ",
"city": "SAINT LOUIS",
"state": "MO",
"postal_code": "631101003",
"telephone_number": "314-747-3000"
}
],
"practiceLocations": [
{
"address_1": "310 W Losey St",
"address_purpose": "LOCATION",
"city": "Scott AFB",
"state": "IL",
"postal_code": "622255250",
"country_code": "US",
"telephone_number": "618-256-9355",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "GENTNER",
"first_name": "MASON",
"middle_name": "EDWARD",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2021-03-01",
"last_updated": "2026-09-01",
"certification_date": "2026-09-01",
"status": "A"
},
"taxonomies": [
{
"code": "207P00000X",
"taxonomy_group": "",
"desc": "Emergency Medicine",
"state": "MO",
"license": "2026039078",
"primary": true
},
{
"code": "207RC0200X",
"taxonomy_group": "",
"desc": "Internal Medicine, Critical Care Medicine",
"state": "MO",
"license": "2026039078",
"primary": false
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "STATE MEDICAL LICENSE",
"identifier": "01089088A",
"state": "IN"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Saint Louis, MO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 1, 2026; 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.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.