Mark Ira Siegel, M.D.

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

131654 Issued in NY

Practice address

60 Gramercy Park N
Ground Floor
New York, NY 10010-5423

Phone

(212) 254-6387

Fax

(212) 674-1933

NPI assigned

Feb 14, 2006

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

Other identifiers 1

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1139875200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1013981380",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "60 GRAMERCY PARK N",
            "address_2": "GROUND FLOOR",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100105423",
            "telephone_number": "212-254-6387",
            "fax_number": "212-674-1933"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "60 GRAMERCY PARK N",
            "address_2": "GROUND FLOOR",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100105423",
            "telephone_number": "212-254-6387",
            "fax_number": "212-674-1933"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIEGEL",
        "first_name": "MARK",
        "middle_name": "IRA",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-02-14",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "NY",
            "license": "131654",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "00715857",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Lindsay Rebecca Siegel
• Lloyd Martin Siegel, MD
• Marc K Siegel, MD
• Marilyn Siegel, LCSWR
• Mark Siegel, MD
• Nancy Jean Siegel, PH.D.
• Nathan F Siegel
• Rebecca Leader Siegel, M.D.
• Richard A Siegel, LCSW
• Richard M Siegel, MD

• Gastroenterology Physician in New York, NY
• Providers in New York, NY by specialty
• Gastroenterology Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.