Linda Lee Isaacs, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

178484 Issued in NY

Practice address

6700 Menchaca Road
Building 3
Austin, TX 78745

Phone

(737) 208-0831

Fax

(737) 242-8223

NPI assigned

Aug 2, 2005

Last updated

Aug 29, 2025By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

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.

Opted out of Medicare

Yes, effective Jul 10, 2019 through Jul 10, 2027

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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.

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  NPD (past)

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

{
    "created_epoch": "1122940800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756425600000",
    "number": "1629079439",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6800 WESTGATE BLVD",
            "address_2": "SUITE 132-223",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "78745",
            "telephone_number": "737-208-0831",
            "fax_number": "737-242-8223"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6700 MENCHACA ROAD",
            "address_2": "BUILDING 3",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "78745",
            "telephone_number": "737-208-0831",
            "fax_number": "737-242-8223"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "172 W 77th St Apt 1C",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100246985",
            "country_code": "US",
            "telephone_number": "737-208-0831",
            "fax_number": "737-242-8223",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "36 E 36th St",
            "address_2": "Suite 1A",
            "address_purpose": "LOCATION",
            "city": "New York",
            "state": "NY",
            "postal_code": "100163463",
            "country_code": "US",
            "telephone_number": "212-213-3337",
            "fax_number": "212-213-3414",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ISAACS",
        "first_name": "LINDA",
        "middle_name": "LEE",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2005-08-02",
        "last_updated": "2025-08-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "R0590",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "178484",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PROVIDER NUMBER",
            "identifier": "032511",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Austin Matthew Isaac, PMHNP
• Dominique J Isaac, MD
• Julie A Isaac, NP
• Marrisa Monique Isaac, M.D.
• Melissa M Isaacks
• Isabel Keogh Therapy PLLC
• Masoud Isat, FNP
• Claire Larson Isbell, M.D.
• Lily Isbell, CPNP-PC
• Jenivie Ovada Isgitt, M.A.

• Internal Medicine Physician in Austin, TX
• Providers in Austin, TX by specialty
• Internal Medicine Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 29, 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; Opt Out Affidavits.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.