Roger L Greiger, M.D.

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

223394 Issued in MA

Practice address

173 Chelsea St
Everett, MA 02149-4632

Phone

(781) 388-6206

NPI assigned

May 1, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MA

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

Psychiatry

Education

Other, 1993

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mass General Brigham Medical Group Suburban Massachusetts IncGroup PAC ID 0244133494, 534 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: greiger.roger.nwh@direct.partners.masshiway.net

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.

• Mass General Brigham Medical Group Suburban Massachusetts Inc

  • Family Medicine Physician
  • Newton, MA
  • NPI 1538191218
  Medicare reassignment Care Compare group NPD
• Newton Wellesley Hospital

  • General Acute Care Hospital
  • Newton, MA
  • NPI 1952845521
  NPD
• Newton-Wellesley Hospital

  • General Acute Care Hospital
  • Newton, MA
  • NPI 1992737761
  NPD (past)

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

{
    "created_epoch": "1146441600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1427015627",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "30 FREDERICK ST",
            "city": "NEWTON",
            "state": "MA",
            "postal_code": "024602211",
            "telephone_number": "781-388-6206"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "173 CHELSEA ST",
            "city": "EVERETT",
            "state": "MA",
            "postal_code": "021494632",
            "telephone_number": "781-388-6206"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREIGER",
        "first_name": "ROGER",
        "middle_name": "L",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-01",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "MA",
            "license": "223394",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Donna Green
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• Tracy Guan
• Janet E Guilfoyle, PA-C
• Lebga N/a Gwanvalla
• Nancy Hendrickson Haddad, LMHC

• Psychiatry Physician in Everett, MA
• Providers in Everett, MA by specialty
• Psychiatry Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.

Verify at the official NPI Registry.