Riar & Altschuler,MD, P.a.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

Legal business name

RIAR & ALTSCHULER,MD, P.A.

Practice address

1299 Lamberton Dr
Silver Spring, MD 20902-3411

Phone

(301) 649-6100

Fax

(301) 649-1920

NPI assigned

Jun 2, 2006

Organization subpart

No

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

Authorized official

Name

Abdullah Riar, M.D.

Title

President

Phone

(301) 649-6100

Specialties & licenses 2

Addresses

Locations

Practitioners 1

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Madhu Mohan Katikineni, M.D.

  • Endocrinology, Diabetes & Metabolism Physician
  • Riverdale, MD
  • NPI 1235182163
  NPD (past)

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

{
    "created_epoch": "1149206400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1598703670",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1299 LAMBERTON DR",
            "city": "SILVER SPRING",
            "state": "MD",
            "postal_code": "209023411",
            "telephone_number": "301-649-6100",
            "fax_number": "301-649-1920"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1299 LAMBERTON DR",
            "city": "SILVER SPRING",
            "state": "MD",
            "postal_code": "209023411",
            "telephone_number": "301-649-6100",
            "fax_number": "301-649-1920"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "RIAR & ALTSCHULER,MD, P.A.",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-06-02",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "RIAR",
        "authorized_official_first_name": "ABDULLAH",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "301-649-6100",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Family Medicine",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ali Rezazadeh Tehrani, M.D.
• Rfom Nurse Practitioner Clinic, LLC
• Rhapsody Therapy LLC
• Jonathan Jong-Hwa Rhee, M.D.
• Marjoriann Rhule, AGNP, MSN, BSN
• Abdullah Riar, M.D.
• Ricardo L. Cook MD, P.a.
• Carol A Rice, PH.D.
• Ratasha Romelle Rice, RBT
• Sandra Rice, M.S.

• Internal Medicine Physician in Silver Spring, MD
• Providers in Silver Spring, MD by specialty
• Internal Medicine Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.