James J Sonn, MD

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

190571 Issued in NY

Practice address

1 Atwell Rd
Cooperstown, NY 13326-1301

Phone

(607) 547-3456

NPI assigned

Jul 18, 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

Specialty

Anesthesiology

Education

Other, 1988

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mary Imogene Bassett HospitalGroup PAC ID 3779488325, 780 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Bassett Healthcare Hospital, Cooperstown, NY, CCN 330136

Merit-based Incentive Payment System (MIPS)

Final score

87.78 of 100Reported as group

Quality

77.53

Promoting interoperability

100

Improvement activities

40

Cost

76.35

Merit-based Incentive Payment System (MIPS)

Final score

39.78 of 100Reported as group

Quality

24.5

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Mary Imogene Bassett Hospital

  • Multi-Specialty Clinic/Center
  • Cooperstown, NY
  • NPI 1083664221
  Medicare reassignment Care Compare group NPD
• Albany Medical College

  • Allergy & Immunology Physician
  • Albany, NY
  • NPI 1497921688

  Anesthesiology

  Medicare reassignment NPD
• Schenectady Anesthesia Associates, P.C.

  • Anesthesiology Physician
  • Schenectady, NY
  • NPI 1457352411
  Medicare reassignment NPD
• St. Joseph'S Physician Health, P.C.

  • Anesthesiology Physician
  • Troy, NY
  • NPI 1154376770
  Medicare reassignment NPD
• Albany Medical College

  • Urgent Care Clinic/Center
  • Albany, NY
  • NPI 1386038925
  NPD
• Albany Medical College

  • Allergy & Immunology Physician
  • Albany, NY
  • NPI 1386689248
  NPD
• Albany Medical College

  • Physical Medicine & Rehabilitation Physician
  • Albany, NY
  • NPI 1629008537

  Anesthesiology

  NPD
• Albany Medical College

  • Anesthesiology Physician
  • Albany, NY
  • NPI 1841226594
  NPD
• Mary Imogene Bassett Hospital

  • Specialty Pharmacy
  • Oneonta, NY
  • NPI 1174419196
  NPD
• Upstate Medical Anesthesiology Group, Inc.

  • General Acute Care Hospital
  • Syracuse, NY
  • NPI 1851485759
  NPD (past)

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

• Mary Imogene Bassett Hospital

  • Rural Acute Care Hospital
  • Cooperstown, NY
  • NPI 1780600577
  Care Compare affiliation

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

{
    "created_epoch": "1153180800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1764028800000",
    "number": "1912925579",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 ATWELL RD",
            "city": "COOPERSTOWN",
            "state": "NY",
            "postal_code": "133261301",
            "telephone_number": "607-547-3480"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 ATWELL RD",
            "city": "COOPERSTOWN",
            "state": "NY",
            "postal_code": "133261301",
            "telephone_number": "607-547-3456"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2215 Burdett Ave",
            "address_purpose": "LOCATION",
            "city": "Troy",
            "state": "NY",
            "postal_code": "121802466",
            "country_code": "US",
            "telephone_number": "518-525-8600",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1450 Western Ave Ste 102",
            "address_2": "Anesthesia Group of Albany, PC",
            "address_purpose": "LOCATION",
            "city": "Albany",
            "state": "NY",
            "postal_code": "122033539",
            "country_code": "US",
            "telephone_number": "518-463-0050",
            "fax_number": "518-207-2973",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SONN",
        "first_name": "JAMES",
        "middle_name": "J",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-18",
        "last_updated": "2025-11-25",
        "certification_date": "2025-11-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NY",
            "license": "190571",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "01496804",
            "state": "NY"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Haylee Smith
• Karen Elaine Smith, MD
• Kathleen E Smith, LMSW
• Stephanie Lynne Smith
• Rajat Soni
• Rafferty Craig Sorensen, CRNA
• Louisette Lise Soussan, MD
• Stacia Southcott, RDN
• Lucas Spencer, RN
• Matthew W Spencer, M.D.

• Anesthesiology Physician in Cooperstown, NY
• Providers in Cooperstown, NY by specialty
• Anesthesiology Physician in New York

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 25, 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.