NPPES file of Aug 9, 2026

Darrick K. Li, MD, PHD

Gastroenterology Physician · New Haven, CT

Darrick K. Li, MD, PHD is a gastroenterology physician with a practice address in New Haven, Connecticut, and NPI 1063825131, issued on Jun 6, 2014. Check the license (Connecticut 66534, 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1063825131
Name
Darrick K. Li
Credential
MD, PHD
Primary taxonomy
Gastroenterology Physician 207RG0100X
License numbers
66534 CT
L-259656 MA
Self-reported in NPPES; status is on the state search
Practice location
20 York St, New Haven, CT 06510
Phone
(617) 726-2865
Enumerated
Jun 6, 2014
Record last updated
Sep 6, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20201026000206); accepts Medicare assignment
Medical or professional school
Columbia University College Of Physicians And Surgeons, 2014
Telehealth
Offers telehealth (CMS)
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 Darrick K. Li in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 66534
    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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1% fewer Medicare Part D claims than the average gastroenterology physician in 2024

801 Medicare Part D claims for 370 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.

  1. Darrick Li801
  2. Specialty average811

Most prescribed

  1. Omeprazole159 claims
  2. Sod Sulf-Potass Sulf-Mag Sulf154 claims
  3. Pantoprazole Sodium70 claims
  4. Sutab43 claims
  5. Dicyclomine Hcl27 claims
  6. Creon26 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 85.1 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 score89.7
  2. Costout of 100 · 30%68.3
  3. Promoting interoperabilityout of 100 · 25%83.0
  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).

Industry payments in 2024: $19,481.48

112 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Darrick Li$19,481
  2. Specialty average$5,016

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Connecticut GI PLLCWaterford, CT

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

Darrick K. Li among 336 gastroenterology physician records in Connecticut

Darrick K. Li, MD, PHD is one of 336 gastroenterology physician records with a practice address in Connecticut. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 85% of them.

  • NPI issued2014 · 85% of these records are older, 13% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2014 · median 2001 among the 255 with a school on file
  • Record last updated2020 · 69% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Connecticut

There are 336 gastroenterology physician records in Connecticut.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Harry Aslanian, MDNew Haven, CT 065101295718401
  2. Sidney Bogardus, MDNew Haven, CT 065101730131103
  3. James Boyer, M.D.New Haven, CT 065101447233267
  4. Samuel Feldshon, MDNew Haven, CT 065101861464547
  5. Rosemarie Fisher, MDNew Haven, CT 065101174507685
  6. Guadalupe Garcia Tsao, MDNew Haven, CT 065101194706416
  7. Wolfram Goessling, MD PHDNew Haven, CT 065101083696298
  8. Chul Hyun, MDNew Haven, CT 065101467540401

Common questions

What is Darrick K. Li, MD, PHD's NPI number?

Darrick K. Li, MD, PHD's National Provider Identifier (NPI) is 1063825131, issued on Jun 6, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Darrick K. Li, MD, PHD located?

The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (617) 726-2865. Providers update this record themselves, so call before visiting.

How can I verify Darrick K. Li, MD, PHD's license?

NPPES lists Connecticut license number 66534, 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.

How much does Darrick K. Li, MD, PHD prescribe under Medicare Part D?

In 2024, Darrick K. Li, MD, PHD had 801 Medicare Part D claims for 370 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Darrick K. Li, MD, PHD's MIPS final score?

The 2023 MIPS final score is 85.1 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.