Martin Eamon Griffis, MD

Primary specialty

Orthopaedic Hand Surgery PhysicianTaxonomy code 207XS0106X

License

25MA11869600 Issued in NJ

Practice address

325 Princeton Ave
Princeton, NJ 08540-1617

Phone

(609) 924-8131

Fax

(609) 924-8532

NPI assigned

Jun 12, 2017

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 NJ

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

Orthopedic Surgery

Education

Drexel University College of Medicine, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Orthonj LLCGroup PAC ID 6800225178, 302 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• University Medical Center of Princeton at Plainsboro Hospital, Plainsboro, NJ, CCN 310010

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

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.

• Orthonj LLC

  • Orthopaedic Surgery Physician
  • Somerset, NJ
  • NPI 1720557432
  Medicare reassignment Care Compare group NPD
• Orthonj LLC

  • Durable Medical Equipment & Medical Supplies
  • Galloway, NJ
  • NPI 1487448312

  Orthopaedic Surgery

  NPD

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

• Princeton Healthcare System, a New Jersey Non-Profit Corporation

  • General Acute Care Hospital
  • Plainsboro, NJ
  • NPI 1689714255
  Care Compare affiliation

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

{
    "created_epoch": "1497225600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770076800000",
    "number": "1124557285",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "325 PRINCETON AVE",
            "city": "PRINCETON",
            "state": "NJ",
            "postal_code": "085401617",
            "telephone_number": "609-924-8131",
            "fax_number": "609-924-8532"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "325 PRINCETON AVE",
            "city": "PRINCETON",
            "state": "NJ",
            "postal_code": "085401617",
            "telephone_number": "609-924-8131",
            "fax_number": "609-924-8532"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRIFFIS",
        "first_name": "MARTIN",
        "middle_name": "EAMON",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-06-12",
        "last_updated": "2026-02-03",
        "certification_date": "2026-02-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207XS0106X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Hand Surgery",
            "state": "NJ",
            "license": "25MA11869600",
            "primary": true
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "NJ",
            "license": "25MA11869600",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jeremy Greenberg
• Leslie M Greenberg, MD
• Leslie Robin Greenberg, MD
• Michael Steven Grenis, MD
• Dolores Grewal, PA-C
• Lisa M Grine, APN
• Alexandra Gronczewski
• Craig Anthony Gronczewski, M.D.
• Jeffrey Grosser, MHS, HO, REHS
• Karen Grosser, PHARMD

• Orthopaedic Hand Surgery Physician in Princeton, NJ
• Providers in Princeton, NJ by specialty
• Orthopaedic Hand Surgery Physician in New Jersey

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 3, 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.