Frederick Joseph Ast, MD

Primary specialty

Rheumatology PhysicianTaxonomy code 207RR0500X

License

1783111 Issued in NY

Practice address

35 E 30TH St
Ste 1a
New York, NY 10016-7325

Phone

(212) 725-7027

Fax

(212) 725-0433

NPI assigned

Mar 2, 2006

Last updated

Jul 29, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 4

Addresses

Other names 1

• Fred Ast Former name

Medicare fee-for-service enrollment

Enrolled in NY, LA, ME, AZ, MI, WA6 enrollments

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 6

Specialty

Allergy/ImmunologyAlso: Internal Medicine, Rheumatology

Education

Other, 1994

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Shakespeare Operating LLCGroup PAC ID 0840604310, 144 clinicians

Community Health Center of Branch CountyGroup PAC ID 9335037514, 56 clinicians

Benson Hospital CorporationGroup PAC ID 3274443056, 20 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Opelousas General Health System Hospital, Opelousas, LA, CCN 190017
• Tri-State Memorial Hospital Hospital, Clarkston, WA, CCN 501332
• Northern Light Eastern Maine Medical Center Hospital, Bangor, ME, CCN 200033
• Insight Hospital and Medical Center Coldwater Hospital, Coldwater, MI, CCN 230022
• Northern Light Mayo Hospital Hospital, Dover Foxcroft, ME, CCN 201309

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: frederick.ast.1@18129.direct.athenahealth.com
• FHIR API: https://fhir4.healow.com/fhir/r4/FCBJAA/Endpoint/FCBJAA

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.

• Benson Hospital Corporation

  • Critical Access Hospital
  • Benson, AZ
  • NPI 1336118322

  Single Specialty

  Medicare reassignment Care Compare group NPD
• Community Health Center of Branch County

  • General Practice Physician
  • Coldwater, MI
  • NPI 1124055009

  Single Specialty

  Medicare reassignment Care Compare group NPD
• Shakespeare Operating LLC

  dba Bronx Treatment Center

  • Multi-Specialty Clinic/Center
  • Bronx, NY
  • NPI 1720634538
  Medicare reassignment Care Compare group
• Icahn School of Medicine at Mount Sinai

  dba Surgery Department of Mount Sinai BI

  • Surgery Physician
  • New York, NY
  • NPI 1104295716

  Single Specialty

  Medicare reassignment NPD
• Jawad a Shah, MD PC

  • Specialist
  • Flint, MI
  • NPI 1942402391

  Single Specialty

  Medicare reassignment NPD
• Opelousas General Health System Physician Practices

  • Family Medicine Physician
  • Opelousas, LA
  • NPI 1295098747

  Single Specialty

  Medicare reassignment NPD
• Essen Medical Associates, PC

  • Legal Medicine
  • Bronx, NY
  • NPI 1366418709
  Medicare reassignment
• Tri-State Memorial Hospital

  • Critical Access Hospital
  • Clarkston, WA
  • NPI 1598814352
  Medicare reassignment
• Tri-State Memorial Hospital

  • Critical Access Hospital
  • Clarkston, WA
  • NPI 1760485221
  Medicare reassignment
• Midtown Allergy and Arthritis Care P.C.

  • Specialist
  • New York, NY
  • NPI 1396037305
  Authorized official Same address or phone
• Icahn School of Medicine at Mount Sinai

  dba Medicine Department of Mount Sinai BI

  • Internal Medicine Physician
  • New York, NY
  • NPI 1063881787
  NPD
• Icahn School of Medicine at Mount Sinai

  dba Beth Israel Medical Group of Mount Sinai

  • Internal Medicine Physician
  • New York, NY
  • NPI 1568868834

  Allergy & Immunology

  NPD

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

• Community Health Center of Branch County

  • General Acute Care Hospital
  • Coldwater, MI
  • NPI 1063471639
  Care Compare affiliation
• Eastern Maine Medical Center

  • General Acute Care Hospital
  • Bangor, ME
  • NPI 1790789147
  Care Compare affiliation
• MRH Corp.

  dba Mayo Regional Hospital

  • Critical Access Hospital
  • Dover Foxcroft, ME
  • NPI 1558319103
  Care Compare affiliation
• Opelousas General Hospital Authority

  • General Acute Care Hospital
  • Opelousas, LA
  • NPI 1447230388
  Care Compare affiliation
• Tri-State Memorial Hospital

  • Critical Access Hospital
  • Clarkston, WA
  • NPI 1760485221
  Care Compare affiliation
• Tri-State Memorial Hospital

  dba Tri State Medical Clinics

  • Family Medicine Physician
  • Clarkston, WA
  • NPI 1932405693

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1141257600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785283200000",
    "number": "1699742288",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "35 E 30TH ST",
            "address_2": "STE 1A",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100167325",
            "telephone_number": "212-725-7027",
            "fax_number": "212-725-0433"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "35 E 30TH ST",
            "address_2": "STE 1A",
            "city": "NEW YORK",
            "state": "NY",
            "postal_code": "100167325",
            "telephone_number": "212-725-7027",
            "fax_number": "212-725-0433"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "26 W Broadway Apt 801",
            "address_purpose": "LOCATION",
            "city": "Long Beach",
            "state": "NY",
            "postal_code": "115614065",
            "country_code": "US",
            "telephone_number": "417-875-3000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "AST",
        "first_name": "FREDERICK",
        "middle_name": "JOSEPH",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-03-02",
        "last_updated": "2026-07-29",
        "certification_date": "2026-07-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RR0500X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine, Rheumatology",
            "state": "AZ",
            "license": "77224",
            "primary": false
        },
        {
            "code": "207K00000X",
            "taxonomy_group": "",
            "desc": "Allergy & Immunology",
            "state": "NY",
            "license": "1783111",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NY",
            "license": "1783111",
            "primary": false
        },
        {
            "code": "207RR0500X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Rheumatology",
            "state": "NY",
            "license": "1783111",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "FRED",
            "last_name": "AST",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Association to Benefit Children-Fast Break Mobile Mental Health Clinic
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• Arie David Assouline, PT, DSC, MS
• Krystel Gilberte Assounga, MHC
• Stephanie Assuras, PHD
• Rosaura Astacio Contreras, PA-C
• Siomerquis Mercedes Astacio Garcia, CF
• Steven Astafiev, MD
• Astaire K. Selassie, MD, PC
• Ameneh Astaneh

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

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 29, 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.