Active NPI
Marc Greenberg, MD
- Orthopaedic Surgery Physician
- Fort Wayne, IN
National Provider Identifier
1750919205
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Orthopaedic Surgery Physician
- License
- 35.156703
- Practice address
- 5050 N Clinton St
Fort Wayne, IN 46825-5822 - Phone
- (260) 484-8551
- NPI assigned
- Mar 31, 2020
- 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 |
|---|---|---|---|---|
| Orthopaedic Surgery Physician | 207X00000X | 35.156703 | OH | Primary |
| Orthopaedic Surgery Physician | 207X00000X | MD20645 | RI |
Addresses
Primary practice location
5050 N Clinton St
Fort Wayne, IN 46825-5822
Mailing address
1 Kettle Point Ave
East Providence, RI 02914-5375
Other practice location 1
1 Kettle Point Ave
East Providence, RI 02914-5375
Phone (401) 457-1500
Other practice location 2
2 Dudley St Ste 200
Providence, RI 02905-3252
Phone (401) 457-1500
Other practice location 3
442 W High St Ste 3
Bryan, OH 43506-1681
Phone (419) 636-4571
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in RI
- 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
- Orthopedic Surgery
- Education
- Mayo Medical School, 2020
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
2 Dudley St
Suite 200
Providence, RI 02905-3248
Phone (401) 457-1500
Hospital & facility affiliations
Procedures performed for Medicare patients
| Procedure | Number of procedures |
|---|---|
| Spinal fusion | 110 |
| Laminectomy or laminotomy (partial removal of spine bones) | 48 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MD20645 | RI | MD | Orthopaedic Surgery Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| University Orthopedics, Inc. | Orthopaedic Surgery | Current | Accepting new patients |
| University Orthopedics, Inc. | Orthopaedic Surgery | Current | Accepting new patients |
Locations
1 Kettle Point Ave
East Providence, RI 02914
Phone (401) 330-1400
2 Dudley St
Ste 200
Providence, RI 02905
Phone (401) 457-1504
Interoperability endpoints
- marc.greenberg.1@13709.direct.athenahealth.com
Organizations & group practices 2
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.
-
- Orthopaedic Surgery Physician
- Providence, RI
- NPI 1235181041
-
- Orthopaedic Surgery Physician
- Cranston, RI
- NPI 1285320093
Hospital & facility affiliations 5
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Providence, RI
- NPI 1588659528
-
- General Acute Care Hospital
- Providence, RI
- NPI 1972768174
-
- General Acute Care Hospital
- Providence, RI
- NPI 1487649430
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1585612800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1789689600000",
"number": "1750919205",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1 KETTLE POINT AVE",
"city": "EAST PROVIDENCE",
"state": "RI",
"postal_code": "029145375"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "5050 N CLINTON ST",
"city": "FORT WAYNE",
"state": "IN",
"postal_code": "468255822",
"telephone_number": "260-484-8551"
}
],
"practiceLocations": [
{
"address_1": "1 Kettle Point Ave",
"address_purpose": "LOCATION",
"city": "East Providence",
"state": "RI",
"postal_code": "029145375",
"country_code": "US",
"telephone_number": "401-457-1500",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "2 Dudley St Ste 200",
"address_purpose": "LOCATION",
"city": "Providence",
"state": "RI",
"postal_code": "029053252",
"country_code": "US",
"telephone_number": "401-457-1500",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "442 W High St Ste 3",
"address_purpose": "LOCATION",
"city": "Bryan",
"state": "OH",
"postal_code": "435061681",
"country_code": "US",
"telephone_number": "419-636-4571",
"fax_number": "419-636-6438",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "GREENBERG",
"first_name": "MARC",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2020-03-31",
"last_updated": "2026-09-18",
"certification_date": "2026-09-18",
"status": "A"
},
"taxonomies": [
{
"code": "207X00000X",
"taxonomy_group": "",
"desc": "Orthopaedic Surgery",
"state": "OH",
"license": "35.156703",
"primary": true
},
{
"code": "207X00000X",
"taxonomy_group": "",
"desc": "Orthopaedic Surgery",
"state": "RI",
"license": "MD20645",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Fort Wayne, IN
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 18, 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.