NPPES file of Aug 9, 2026

Nat Dumrongmongcolgul, MD

Critical Care Medicine (Anesthesiology) Physician · New Haven, CT

Nat Dumrongmongcolgul, MD is a critical care medicine (anesthesiology) physician with a practice address in New Haven, Connecticut, and NPI 1891082665, issued on Jun 30, 2011. Check the license 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
1891082665
Name
Nat Dumrongmongcolgul
Credential
MD
Primary taxonomy
Critical Care Medicine (Anesthesiology) Physician 207LC0200X
License number
M2116 GU
Self-reported in NPPES; status is on the state search
Practice location
20 York St, New Haven, CT 06510
Phone
(203) 688-4242
Enumerated
Jun 30, 2011
Record last updated
May 16, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190227002387); 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 20 York St

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

  1. Cyrena Abbasi, MDStudent in an Organized Health Care Education/Training Program1609703289
  2. Ali Abboud, MD, MBAStudent in an Organized Health Care Education/Training Program1942943097
  3. Basil Abdalla, MDStudent in an Organized Health Care Education/Training Program1154905057
  4. Jasmina AbdallaStudent in an Organized Health Care Education/Training Program1700638590
  5. Sarah AbdallahPsychiatry Physician1740800952
  6. Usama Abdelghany, PHARM DOncology Pharmacist1548827843

Verify Nat Dumrongmongcolgul in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining BoardCheck 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

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The practice group's MIPS final score for 2023 (Medicare payment program): 88.1 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 score87.2
  2. Costout of 100 · 30%74.7
  3. Promoting interoperabilitynot scored (reweighted)
  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. Guam Healthcare Development IncorporatedDededo, GU

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

Nat Dumrongmongcolgul among 14 critical care medicine (anesthesiology) physician records in Connecticut

Nat Dumrongmongcolgul, MD is one of 14 critical care medicine (anesthesiology) physician records with a practice address in Connecticut. 93% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 50% of them.

  • NPI issued2011 · 50% of these records are older, 36% newer
  • In a Medicare fileYes · 93% of these records are
  • In the CMS Doctors and Clinicians fileYes · 86% of these records are
  • Graduated2007 · median 2008 among the 12 with a school on file
  • Record last updated2019 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LC0200X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Anesthesiology) Physician providers in Connecticut

There are 14 critical care medicine (anesthesiology) physician records in Connecticut.

The 8 critical care medicine (anesthesiology) physician records with the nearest ZIP codes

  1. Ghaith Abdulkarim, M.D.New Haven, CT 065101295021236
  2. Nikhil Chawla, MDNew Haven, CT 065101093979288
  3. Andres De Lima Arboleda, MDNew Haven, CT 065101952899254
  4. David Kiamanesh, M.D.New Haven, CT 065101396979282
  5. Tosanath Leepuengtham, M.D.New Haven, CT 065101194997296
  6. Christopher Szabo, M.D.New Haven, CT 065101861653834
  7. Olof Viktorsdottir, MD, MBANew Haven, CT 065101568623791
  8. Yiyu Zhao, MDNew Haven, CT 065101437416781

Common questions

What is Nat Dumrongmongcolgul, MD's NPI number?

Nat Dumrongmongcolgul, MD's National Provider Identifier (NPI) is 1891082665, issued on Jun 30, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Nat Dumrongmongcolgul, MD located?

The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 688-4242. Providers update this record themselves, so call before visiting.

How can I verify Nat Dumrongmongcolgul, MD's license?

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 Nat Dumrongmongcolgul, MD's MIPS final score?

The 2023 MIPS final score is 88.1 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.