Richard Mermelstein, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

290500 Issued in NY

Practice address

225 Nassau Blvd # B
W Hempstead, NY 11552-2247

Phone

(516) 656-1919

Fax

(833) 968-3330

NPI assigned

May 1, 2014

Last updated

Sep 10, 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 1

Addresses

Medicare fee-for-service enrollment

Enrolled in NY

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 Medicine

Education

Other, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Practice addresses (Care Compare)

Hospital & facility affiliations

• NYU Langone Home Health Care Home health agency, Garden City, NY, CCN 337187

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as group

Quality

99.37

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• Healthfirst Medicare Network H5989
• Healthfirst Medicare Network H1722
• Healthfirst Medicare Network H9678
• Healthfirst Medicare Network H3359

Interoperability endpoints

• Direct secure messaging: richard.mermelstein.1@24863.direct.athenahealth.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.

• Prine Health Medical Group, PLLC

  dba PRINE Podiatry

  • Nephrology Physician
  • Manhasset, NY
  • NPI 1144790163
  Medicare reassignment NPD
• Primary Partnercare Physicians PLLC

  • Internal Medicine Physician
  • New Hyde Park, NY
  • NPI 1891318168
  Medicare reassignment
• Prine Health Medical Group, PLLC

  dba PRINE Podiatry

  • Podiatrist
  • Hicksville, NY
  • NPI 1538868336
  NPD
• Hudson Primary Care Medical PC

  • Internal Medicine Physician
  • Jackson Heights, NY
  • NPI 1174844369
  NPD (past)
• Mehta Medical PC

  • Internal Medicine Physician
  • Bronx, NY
  • NPI 1861977316
  NPD (past)
• Parker Jewish Institute for Health Care and Rehabilitation

  • Skilled Nursing Facility
  • New Hyde Park, NY
  • NPI 1851467369
  NPD (past)

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

• NYU Langone Hospitals

  dba NYU Langone Home Health Care

  • Home Health Agency
  • Mineola, NY
  • NPI 1215931811
  Care Compare affiliation

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

{
    "created_epoch": "1398902400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757462400000",
    "number": "1629488440",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1010 NORTHERN BLVD STE 328",
            "city": "GREAT NECK",
            "state": "NY",
            "postal_code": "110215329",
            "telephone_number": "516-233-2484",
            "fax_number": "516-304-5850"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "225 NASSAU BLVD # B",
            "city": "W HEMPSTEAD",
            "state": "NY",
            "postal_code": "115522247",
            "telephone_number": "516-656-1919",
            "fax_number": "833-968-3330"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "24 Joy Dr",
            "address_purpose": "LOCATION",
            "city": "Manhasset Hills",
            "state": "NY",
            "postal_code": "110401109",
            "country_code": "US",
            "telephone_number": "516-233-8241",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MERMELSTEIN",
        "first_name": "RICHARD",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-05-01",
        "last_updated": "2025-09-10",
        "certification_date": "2025-09-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "290500",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• 135 Woodfield Road Medical Services, PLLC
• CVS Albany LLC (CVS Pharmacy # 00369)
• Olanrewaju Olusola Esan, M.D.
• Kara Foldes
• Kathleen Ann Johnson, O.D.
• Projeact Outreach
• Gina Marie Pugliese, P.T.
• Rashel Rahmani, DDS
• June Rogers Eliely
• David Spraragen

• Internal Medicine Physician in W Hempstead, NY
• Providers in W Hempstead, NY by specialty
• Internal Medicine Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 10, 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.