Neil Robert Greenspan, M.D.

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

07758 Issued in RI

Practice address

44 W River St
Providence, RI 02904-2609

Phone

(401) 274-4800

Fax

(401) 454-0410

NPI assigned

Oct 18, 2005

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

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

Green means eligible to order or refer.

Enrollment records 1

Specialty

Gastroenterology

Education

Columbia University College of Physicians and Surgeons, 1984

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University Gastroenterology, LLCGroup PAC ID 3678762804, 99 clinicians

Gastroenterology Associates IncGroup PAC ID 6103886528, 14 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• The Miriam Hospital Hospital, Providence, RI, CCN 410012
• Rhode Island Hospital Hospital, Providence, RI, CCN 410007

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: neil.greenspan@ga.eclinicaldirectplus.com
• FHIR API: https://fhir4.healow.com/fhir/r4/BBICBD

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 Associates Inc

  • Gastroenterology Physician
  • Providence, RI
  • NPI 1093723546
  Medicare reassignment Care Compare group NPD Authorized official
• University Gastroenterology, LLC

  • Gastroenterology Physician
  • Providence, RI
  • NPI 1386952612
  Medicare reassignment Care Compare group NPD
• Endoscopy Associates, LLC

  dba West River Endoscopy

  • Endoscopy Clinic/Center
  • Providence, RI
  • NPI 1265484810
  NPD Authorized official

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Rhode Island Hospital

  dba LifePact

  • Ambulance
  • Providence, RI
  • NPI 1053552299

  Hospital

  Care Compare affiliation
• Rhode Island Hospital

  • Clinic/Center
  • Providence, RI
  • NPI 1154663383

  Hospital

  Care Compare affiliation
• Rhode Island Hospital

  • General Acute Care Hospital
  • Providence, RI
  • NPI 1588659528
  Care Compare affiliation
• Rhode Island Hospital

  • General Acute Care Hospital
  • Providence, RI
  • NPI 1972768174
  Care Compare affiliation
• The Miriam Hospital

  • General Acute Care Hospital
  • Providence, RI
  • NPI 1487649430
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1129593600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760486400000",
    "number": "1023007556",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 202230",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "753202230",
            "telephone_number": "401-274-4800",
            "fax_number": "401-454-0410"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "44 W RIVER ST",
            "city": "PROVIDENCE",
            "state": "RI",
            "postal_code": "029042609",
            "telephone_number": "401-274-4800",
            "fax_number": "401-454-0410"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREENSPAN",
        "first_name": "NEIL",
        "middle_name": "ROBERT",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-10-18",
        "last_updated": "2025-10-15",
        "certification_date": "2025-10-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "RI",
            "license": "07758",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "RI",
            "license": "07758",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jasmine Elizabeth Greene, B.A.
• Matthew Greene, B.S.
• Rebecca Greene, PHARMD
• Zoe E Greene
• Timothy Wickham Greenfield, MD
• Daniel Greenwald, M.D.
• Virginia K Greenwood, MD
• James Edward Greer, MD
• Kimberly Alene Gregg, PA-C
• Kathleen Ann Greggerson, FNP-BC

• Gastroenterology Physician in Providence, RI
• Providers in Providence, RI by specialty
• Gastroenterology Physician in Rhode Island

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 15, 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.
• 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.

Verify at the official NPI Registry.