NPPES file of Aug 9, 2026

Alan Jay Greenwald, M.D.

Specialist · New London, CT

Alan Jay Greenwald, M.D. is a specialist with a practice address in New London, Connecticut, and NPI 1174617419, issued on Oct 3, 2006. Check the license (Connecticut 1219518, as entered in NPPES) with the Connecticut board that licenses this profession; 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
1174617419
Name
Alan Jay Greenwald
Credential
M.D.
Primary taxonomy
Specialist 174400000X
License number
1219518 CT
Self-reported in NPPES; status is on the state search
Practice location
268 Montauk Ave, New London, CT 06320
Phone
(860) 442-8553
Enumerated
Oct 3, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(860) 447-3169
Medicaid ID
1219518 CT
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Alan Jay Greenwald in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 1219518
    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
Find the Connecticut license search

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37% fewer Medicare Part D claims than the average specialist in 2024

867 Medicare Part D claims for 224 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. Alan Greenwald867
  2. Specialty average1,380

Most prescribed

  1. Pantoprazole Sodium210 claims
  2. Omeprazole105 claims
  3. Famotidine71 claims
  4. Dicyclomine Hcl49 claims
  5. Mesalamine37 claims
  6. Creon31 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).

Alan Jay Greenwald among 397 specialist records in Connecticut

Alan Jay Greenwald, M.D. is one of 397 specialist records with a practice address in Connecticut. 25% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 55% newer
  • In a Medicare fileYes · 25% of these records are
  • In the CMS Doctors and Clinicians fileNo · 15% of these records are
  • Record last updated2007 · 81% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in Connecticut

There are 397 specialist records in Connecticut.

The 8 specialist records with the nearest ZIP codes

  1. Cynthia Curioso-Uy, M.D.New London, CT 063201790783264
  2. Dennis Gordan, M.D.New London, CT 063201548203508
  3. Cathy Horne, ATCNew London, CT 063201033175559
  4. Niloufar Mobashery, MDNew London, CT 063201912195918
  5. Tu Nguyen, MDNew London, CT 063201447409628
  6. Joseph Oconnell, M.D.New London, CT 063201891793592
  7. Suzanne PinkstonNew London, CT 063201639205099
  8. Anthony Quinn, MDNew London, CT 063201053319624

Common questions

What is Alan Jay Greenwald, M.D.'s NPI number?

Alan Jay Greenwald, M.D.'s National Provider Identifier (NPI) is 1174617419, issued on Oct 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Alan Jay Greenwald, M.D. located?

The NPPES record lists a practice address at 268 Montauk Ave, New London, CT, 06320. Phone: (860) 442-8553. Providers update this record themselves, so call before visiting.

How can I verify Alan Jay Greenwald, M.D.'s license?

NPPES lists Connecticut license number 1219518, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Alan Jay Greenwald, M.D. prescribe under Medicare Part D?

In 2024, Alan Jay Greenwald, M.D. had 867 Medicare Part D claims for 224 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.

What is Alan Jay Greenwald, M.D.'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.