NPPES file of Aug 9, 2026

Tong Sun, M.D.

Anatomic Pathology & Clinical Pathology Physician · New Haven, CT

Tong Sun, M.D. is an anatomic pathology & clinical pathology physician with a practice address in New Haven, Connecticut, and NPI 1972999548, issued on Apr 10, 2015. Check the license (Connecticut 66454, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1972999548
Name
Tong Sun
Credential
M.D.
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License numbers
66454 CT
264359 MA
Self-reported in NPPES; status is on the state search
Practice location
310 Cedar St, New Haven, CT 06510
Phone
(203) 785-3624
Enumerated
Apr 10, 2015
Record last updated
Jul 13, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
1972999548 CT
Medicare enrollment
Enrolled (PECOS I20200826001890); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 310 Cedar St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cameron BeechAnatomic Pathology Physician1053799924
  2. Caleb ChengStudent in an Organized Health Care Education/Training Program1902171283
  3. Bayindir CimsitStudent in an Organized Health Care Education/Training Program1619106564
  4. Jose Costa, MDAnatomic Pathology Physician1083603617
  5. Marcello Distasio, M.D., PH.D.Neuropathology Physician1609295781
  6. Karin Finberg, MD, PHDMolecular Genetic Pathology (Pathology) Physician1609902089

Verify Tong Sun in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 66454
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 73.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score75.8
  2. Costout of 100 · 30%51.4
  3. Promoting interoperabilityout of 100 · 25%74.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Yale UniversityBridgeport, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Tong Sun among 212 anatomic pathology & clinical pathology physician records in Connecticut

Tong Sun, M.D. is one of 212 anatomic pathology & clinical pathology physician records with a practice address in Connecticut. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 80% of them.

  • NPI issued2015 · 80% of these records are older, 14% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2002 · median 1999 among the 132 with a school on file
  • Record last updated2020 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology & Clinical Pathology Physician providers in Connecticut

There are 212 anatomic pathology & clinical pathology physician records in Connecticut.

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Rita Abi-RaadNew Haven, CT 065101992097273
  2. Hiba Alhumaidan, M.D.New Haven, CT 065101730409327
  3. Ritu Gupta, M.D.New Haven, CT 065101487944567
  4. Barton Kenney, M.D.New Haven, CT 065101003093014
  5. Jung Kim, MDNew Haven, CT 065101518956937
  6. Chen Liu, MDNew Haven, CT 065101336194034
  7. Gilbert Moeckel, MD, PHDNew Haven, CT 065101801970900
  8. Melissa Much, M.D.New Haven, CT 065101013237841

Common questions

What is Tong Sun, M.D.'s NPI number?

Tong Sun, M.D.'s National Provider Identifier (NPI) is 1972999548, issued on Apr 10, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Tong Sun, M.D. located?

The NPPES record lists a practice address at 310 Cedar St, New Haven, CT, 06510. Phone: (203) 785-3624. Providers update this record themselves, so call before visiting.

How can I verify Tong Sun, M.D.'s license?

NPPES lists Connecticut license number 66454, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Tong Sun, M.D.'s MIPS final score?

The 2023 MIPS final score is 73.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.