Thomas Grindberg, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

281799 Issued in MA

Practice address

325B King St
Northampton, MA 01060-2370

Phone

(413) 586-2496

Fax

(413) 923-5557

NPI assigned

Apr 9, 2015

Last updated

Mar 7, 2025By the provider in NPPES

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 MA, NY2 enrollments

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 2

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: tgrindberg703892@nyumc.direct-ci.com
• Direct secure messaging: thomas.grindberg.p1@direct.ezramedical.nextgenshare.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Baystate Medical Practices, Inc

  • Emergency Medical Services (Emergency Medicine) Physician
  • Springfield, MA
  • NPI 1548205909

  Obstetrics & Gynecology

  Medicare reassignment NPD
• Mercy Inpatient Medical Associates Inc.

  dba Trinity Health Of New England Medical Group

  • Internal Medicine Physician
  • Springfield, MA
  • NPI 1407845282

  Obstetrics & Gynecology

  Medicare reassignment NPD
• Michael J Grossman MD PC

  • Obstetrics & Gynecology Physician
  • North Andover, MA
  • NPI 1770530255
  Medicare reassignment NPD
• Obhg Massachusetts - Direct, P.C.

  • Obstetrics Physician
  • Brockton, MA
  • NPI 1487229035
  Medicare reassignment NPD
• Obhg Massachusetts PC

  • Obstetrics & Gynecology Physician
  • Lawrence, MA
  • NPI 1740844083
  Medicare reassignment NPD
• Saint Vincent Physician Services, Inc.

  • Family Medicine Physician
  • Worcester, MA
  • NPI 1013997329
  Medicare reassignment NPD
• New York University

  dba NYU Faculty Group Practice

  • Cardiovascular Disease Physician
  • Boynton Beach, FL
  • NPI 1285826438

  NY, Obstetrics & Gynecology

  Medicare reassignment NPD
• New York University

  dba NYU Langone Ambulatory Care Chelsea

  • Physical Medicine & Rehabilitation Physician
  • Boynton Beach, FL
  • NPI 1104787613
  NPD
• Baystate Medical Center Inc

  dba Baystate Medical Center

  • General Acute Care Hospital
  • Springfield, MA
  • NPI 1487655064
  NPD (past)
• The Mercy Hospital Inc

  dba Mercy Medical Center

  • General Acute Care Hospital
  • Springfield, MA
  • NPI 1043204316
  NPD (past)
• NYU Langone Hospitals

  • General Acute Care Hospital
  • Brooklyn, NY
  • NPI 1619341716
  NPD (past)

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

{
    "created_epoch": "1428537600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1741305600000",
    "number": "1932595733",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "280 CHESTNUT ST FL 2",
            "city": "SPRINGFIELD",
            "state": "MA",
            "postal_code": "011991001",
            "telephone_number": "413-794-5700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "325B KING ST",
            "city": "NORTHAMPTON",
            "state": "MA",
            "postal_code": "010602370",
            "telephone_number": "413-586-2496",
            "fax_number": "413-923-5557"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRINDBERG",
        "first_name": "THOMAS",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-04-09",
        "last_updated": "2025-03-07",
        "certification_date": "2025-03-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "NY",
            "license": "334027",
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "MA",
            "license": "281799",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Gretchen W Carlson Inc (Gretchen Carlson MD)
• Andrew Thomas Liao Griffith, M.D.
• Margaret B Griffith, MD
• Daniella Maria Grimaldi, MS
• Lora D Grimes, MD
• Lea A Grippin, FNP-BC
• Alexandra Groody, PSY.D.
• Grow LLC
• Naoise Grybko
• Nancy Leah Guardia, LICSW

• Obstetrics & Gynecology Physician in Northampton, MA
• Providers in Northampton, MA by specialty
• Obstetrics & Gynecology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 7, 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.

Verify at the official NPI Registry.