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JAMES GRANT THOMSON MD
NPI 1437133410
Surgery - Plastic and Reconstructive Surgery in New Haven, CT

Active since December 02, 2005PECOS EnrolledAccepts Medicare Assignment
73.56/100
CMS Quality Rating
800 HOWARD AVE, YALE PHYSICIANS' BUILDING, 2ND FL, NEW HAVEN, CT 06519(203) 785-2571(203) 785-5714 Get Directions Write a Review

NPPES record last updated: April 6, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About James Grant Thomson Md NPPES

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

JAMES GRANT THOMSON MD (NPI 1437133410) is an individual plastic and reconstructive surgery provider in New Haven, Connecticut, licensed in Connecticut (032980) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of Other (1983).

NPPES Registry Identity

NPI1437133410
Entity TypeIndividualMale
Primary Taxonomy2086S0122X
Provider Legal NameJAMES GRANT THOMSONCredential: MD
Location Address800 HOWARD AVE, YALE PHYSICIANS' BUILDING, 2ND FLNew Haven, CT 06519-1369
Mailing Address800 Howard Ave, Yale Physicians' Building, 2nd FlNew Haven, CT 06519-1369 · (203) 785-2571 · Fax (203) 785-5714
Phone(203) 785-2571
Fax(203) 785-5714
Sole ProprietorNo
Medical School CMSOtherGraduated 1983
Enumeration DateDecember 2, 2005
Last NPPES UpdateApril 6, 2011
✔ NPI 1437133410 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Plastic and Reconstructive SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0122X
License✔ Licensed in CT · 032980
Definition
A surgeon who specializes in plastic and reconstructive surgery.
Also ListedSurgery · Surgery of the HandTaxonomy 2086S0105X · License 032980 (CT)
800 HOWARD AVE, New Haven, CT 06519
Open in Google Maps ↗

Other Identifiers 3

Medicare UPINE73310
Medicaid001329805CT
Medicare ID-Type Unspecified240000099CT

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

James Grant Thomson 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 ID6507996097
PECOS Enrollment IDI20100609000901
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.

Medicare Billing Reassignment

Medicare enrollment records show James Thomson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Yale University
0.4 mi
Advanced Practice Midwife
100 CHURCH ST S STE 200, YALE SCHOOL OF NURSING
New Haven, CT 06519
  • Reassigned Medicare billing, Connecticut enrollment
  • 3,728 clinicians in this Medicare group
NPI 1124148887 (203) 737-5432

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 2

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.

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
61 services47 patients
New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more 99202
This service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.
50 services50 patients

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.

73.56/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality75.84
Promoting Interoperability74
Improvement Activities40
Cost51.43

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.

MS. PAULA M. TORTORICI-SCHEFF FNP
Nurse Practitioner (Family)
800 HOWARD AVE
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 688-4242
GERARD ANDREW BETRO MD
Surgery
800 HOWARD AVE, YALE PHYSICIANS BLDG
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-2140
ALEXA BLOOD APRN
Nurse Practitioner
800 HOWARD AVE
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-2565
MICHAEL DIGIOVANNA MD
Internal Medicine (Medical Oncology)
800 HOWARD AVE, YALE PHYSICIANS BUILDING - 2ND FLOOR
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 688-4191
HELENA TERESA CHMIELOWICZ APRN
Clinical Nurse Specialist (Gerontology)
800 HOWARD AVE
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-2140
DR. MARC LEWIS ROSEN MD
Physical Medicine & Rehabilitation
800 HOWARD AVE
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-2579
MICHELE ANNE GOYETTE -EWING PHD
Psychologist (Clinical Child & Adolescent)
800 HOWARD AVE, YALE PHYSICIANS BLDG
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (203) 785-2140
UZMA USMAN MD
Psychiatry & Neurology (Neuromuscular Medicine)
800 HOWARD AVE
NEW HAVEN, CT 06519
South Central Connecticut Planning Region (999) 999-9999

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 Thomson's NPI number?

The NPI number for James Thomson is 1437133410. It was assigned to this individual provider in the NPPES registry on December 2, 2005.

Where is James Thomson located?

James Thomson practices at 800 Howard Ave Yale Physicians' Building, 2nd Fl, New Haven, CT 06519. The listed phone number is (203) 785-2571.

What is James Thomson's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Plastic and Reconstructive Surgery, with taxonomy code 2086S0122X.

Is James Thomson enrolled in Medicare?

Yes. James Thomson 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.

Which organization bills Medicare for James Thomson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Thomson reassigns Medicare benefits to Yale University (New Haven, CT). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for James Thomson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for James Thomson was last updated on April 6, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 years 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.