Gregory Salvatore Rihacek, MD

Primary specialty

Rheumatology PhysicianTaxonomy code 207RR0500X

License

25MA06373000 Issued in NJ

Practice address

19 Clyde Rd
#101
Somerset, NJ 08873-5042

Phone

(732) 568-0023

Fax

(732) 568-0159

NPI assigned

Feb 17, 2006

Last updated

May 13, 2026By 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 1

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

Internal MedicineAlso: Rheumatology

Education

Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), 1982

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Hospital & facility affiliations

• Saint Peter's University Hospital Hospital, New Brunswick, NJ, CCN 310070
• Cooper University Hospital Hospital, Camden, NJ, CCN 310014

Merit-based Incentive Payment System (MIPS)

Final score

24.11 of 100Reported as individual

Quality

0

Improvement activities

0

Cost

80.38

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

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.

• CMC Department of Medicine Group PA

  • Pulmonary Disease Physician
  • Voorhees, NJ
  • NPI 1265565667
  Medicare reassignment
• Arthritis Care Medical Center

  • Rheumatology Physician
  • Somerset, NJ
  • NPI 1427101864
  NPD (past) Authorized official

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

• Saint Peter's University Hospital

  • General Acute Care Hospital
  • New Brunswick, NJ
  • NPI 1114924834
  Care Compare affiliation
• The Cooper Health System

  dba Cooper University Hospital

  • Land Ambulance
  • Camden, NJ
  • NPI 1174976724

  Hospital

  Care Compare affiliation
• The Cooper Health System

  • General Acute Care Hospital
  • Camden, NJ
  • NPI 1568442309
  Care Compare affiliation

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

{
    "created_epoch": "1140134400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778630400000",
    "number": "1114992773",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 FEDERAL ST STE 200",
            "city": "CAMDEN",
            "state": "NJ",
            "postal_code": "081031088",
            "telephone_number": "848-288-6935"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "19 CLYDE RD",
            "address_2": "#101",
            "city": "SOMERSET",
            "state": "NJ",
            "postal_code": "088735042",
            "telephone_number": "732-568-0023",
            "fax_number": "732-568-0159"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "400 W Route 38 Fl 1",
            "address_purpose": "LOCATION",
            "city": "Moorestown",
            "state": "NJ",
            "postal_code": "080573219",
            "country_code": "US",
            "telephone_number": "856-270-4002",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RIHACEK",
        "first_name": "GREGORY",
        "middle_name": "SALVATORE",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-17",
        "last_updated": "2026-05-13",
        "certification_date": "2026-05-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "NJ",
            "license": "25MA06373000",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Richard C Angrist MD PA
• Robin Richards-Greene, MSW, LCSW
• David A Richards, MD
• Michael J Richardson, M.D.
• Ilene Anne Richman, MSW, LCSW
• Spiridoula J. Riley, PT, DPT, ATC, MSAT
• Rite Aid of New Jersey Inc (Rite Aid Pharmacy 03477)
• Nydiadra N Rivers, LAC
• Deborah Riviere, EDD
• Nazia Rizvi, M.D.

• Rheumatology Physician in Somerset, NJ
• Providers in Somerset, NJ by specialty
• Rheumatology Physician in New Jersey

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