1. Home
  2. Directory
  3. New York
  4. Cooperstown
  5. Anesthesiology
  6. NPI Profile

JAMES J SONN MD
NPI 1912925579
Anesthesiology in Cooperstown, NY

Active since July 18, 2006PECOS EnrolledAccepts Medicare Assignment
76.7/100
CMS Quality Rating
1 ATWELL RD, COOPERSTOWN, NY 13326(607) 547-3456 Get Directions Write a Review

NPPES record last updated: November 25, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About James J Sonn Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JAMES J SONN MD (NPI 1912925579) is an individual anesthesiology provider in Cooperstown, New York, licensed in New York (190571) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Bassett Healthcare, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1912925579
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameJAMES J SONNCredential: MD
Location Address1 ATWELL RDCooperstown, NY 13326-1301
Mailing Address1 Atwell RdCooperstown, NY 13326-1301 · (607) 547-3480
Phone(607) 547-3456
Sole ProprietorNo
Medical School CMSOtherGraduated 1988
Enumeration DateJuly 18, 2006
Last NPPES UpdateNovember 25, 2025
NPPES CertifiedNovember 25, 2025
✔ NPI 1912925579 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in NY · 190571
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
1 ATWELL RD, Cooperstown, NY 13326
Open in Google Maps ↗

Secondary Practice Locations 2

Location 12215 Burdett AveTroy, NY 12180-2466 · Phone (518) 525-8600
Location 21450 Western Ave Ste 102, Anesthesia Group of Albany, PCAlbany, NY 12203-3539 · Phone (518) 463-0050 · Fax (518) 207-2973

Other Identifiers 1

Medicaid01496804NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

James J Sonn Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4486543832
PECOS Enrollment IDI20060818000434
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
24 services24 patients
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
21 services21 patients
Anesthesia for other procedure on urinary system through urethra 00910
Anesthesia for a procedure on the urinary system through the urethra involves using medicine to numb sensation in the area. This is done to ensure you feel no pain or discomfort during the procedure. The medicine can be given locally, regionally, or generally, depending on the specifics of your procedure.
20 services19 patients
Anesthesia for retinal surgery 00145
Anesthesia for retinal surgery involves using medications to numb your eye and surrounding area. This prevents pain and discomfort during the procedure. You may also receive medication to help you relax. The anesthesia can be local (just your eye) or general (you're asleep).
19 services19 patients
Anesthesia for lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
17 services17 patients
Anesthesia for other procedure on lower abdomen 00840
Anesthesia for a lower abdomen procedure involves medication to eliminate pain during surgery. You might be awake but relaxed and pain-free, or you may be completely unconscious. It's administered to ensure comfort and safety throughout the operation.
15 services15 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Bassett Healthcare

Acute Care Hospitals · Cooperstown, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330136
LocationOne Atwell RoadCooperstown, NY 13326 · Otsego County
Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

76.7/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality77.96
Promoting Interoperability74
Improvement Activities40
Cost61.04

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SHIRLEY SCHUE ARNP
Nurse Practitioner (Pediatrics)
1 ATWELL RD
COOPERSTOWN, NY 13326
Otsego County (607) 547-6982
MARGUERITE DUPLESSIS PA-C
Physician Assistant
1 ATWELL RD
COOPERSTOWN, NY 13326
Otsego County (607) 547-3153
KYLE NICK PA-C
Physician Assistant
1 ATWELL RD
COOPERSTOWN, NY 13326
Otsego County (607) 547-3456
MS. BARBARA MARY SEPP LCSW
Social Worker (Clinical)
1 ATWELL RD
COOPERSTOWN, NY 13326
Otsego County (607) 547-3500
PATRICIA LINDSAY PA-C
Physician Assistant (Surgical)
1 ATWELL RD
COOPERSTOWN, NY 13326
Otsego County (607) 547-3400
HAYLEE SMITH
Physician Assistant
1 ATWELL RD
COOPERSTOWN, NY 13326
Otsego County (607) 547-3456
DR. CHRIS L KJOLHEDE M.D.
Pediatrics
1 ATWELL RD
COOPERSTOWN, NY 13326
Otsego County (607) 547-3290
ELIZABETH FINAN GUINEY L.M., C.M.
Midwife
1 ATWELL RD
COOPERSTOWN, NY 13326
Otsego County (607) 547-3160

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is James Sonn's NPI number?

The NPI number for James Sonn is 1912925579. It was assigned to this individual provider in the NPPES registry on July 18, 2006.

Where is James Sonn located?

James Sonn practices at 1 Atwell Rd, Cooperstown, NY 13326. The listed phone number is (607) 547-3456.

What is James Sonn's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is James Sonn enrolled in Medicare?

Yes. James Sonn is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is James Sonn affiliated with any hospitals?

According to CMS data, James Sonn is affiliated with Bassett Healthcare.

When was this NPI record last updated?

The NPPES record for James Sonn was last updated on November 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.