NPPES file of Aug 9, 2026

Jeffrey Gruskay, MD

Neonatal-Perinatal Medicine Physician · Milford, CT

Jeffrey Gruskay, MD is a neonatal-perinatal medicine physician with a practice address in Milford, Connecticut, and NPI 1588674345, issued on Aug 8, 2006. Check the license (Connecticut 026920, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588674345
Name
Jeffrey Gruskay
Credential
MD
Primary taxonomy
Neonatal-Perinatal Medicine Physician 2080N0001X
License numbers
026920 CT
036920 CT
Self-reported in NPPES; status is on the state search
Practice location
50 Commerce Park, Milford, CT 06460
Phone
(203) 882-2066
Enumerated
Aug 8, 2006
Record last updated
Jul 5, 2023
Fax
(203) 882-2074
Medicaid ID
1269208 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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Also registered at 50 Commerce Park

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

  1. Jaime Anderson, APRNPediatric Nurse Practitioner1477684900
  2. Lisa Capobianco, APRNPediatric Nurse Practitioner1649498254
  3. Richard Edwards, APRNPediatric Nurse Practitioner1689794133
  4. Harry Kipperman, MDPediatrics Physician1053321786
  5. Christopher Lawrence, MDPediatrics Physician1790798742
  6. Roberta Lockhart, MDPediatrics Physician1811907686

Verify Jeffrey Gruskay in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 026920
    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

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39% fewer Medicare Part D claims than the average neonatal-perinatal medicine physician in 2024

20 Medicare Part D claims, against an average of 33 among the 189 providers of this specialty who prescribed in Part D.

  1. Jeffrey Gruskay20
  2. Specialty average33

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.

Industry payments in 2024: $578.47

29 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 875 providers of this specialty with any payment received $849.08 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jeffrey Gruskay$578.47
  2. Specialty average$849.08

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

Jeffrey Gruskay among 108 neonatal-perinatal medicine physician records in Connecticut

Jeffrey Gruskay, MD is one of 108 neonatal-perinatal medicine physician records with a practice address in Connecticut. 13% 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 24% of them.

  • NPI issued2006 · 24% of these records are older, 51% newer
  • In a Medicare fileYes · 13% of these records are
  • In the CMS Doctors and Clinicians fileNo · 7% of these records are
  • Record last updated2023 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080N0001X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neonatal-Perinatal Medicine Physician providers in Connecticut

There are 108 neonatal-perinatal medicine physician records in Connecticut.

The 8 neonatal-perinatal medicine physician records with the nearest ZIP codes

  1. Joseph Tuggle, M.D.Southbury, CT 064881326078494
  2. Catherine Buck, MDNew Haven, CT 065041437425402
  3. Rosa Carrasco Sanchez, MDNew Haven, CT 065041326240599
  4. Cassandra Demartino, M.D.New Haven, CT 065041902268287
  5. Matthew Drago, MDNew Haven, CT 065041225322456
  6. Zaneta Forson-DareNew Haven, CT 065041982050829
  7. Ian Gross, MDNew Haven, CT 065041467435685
  8. Jeffrey Gruen, MDNew Haven, CT 065041598748709

Common questions

What is Jeffrey Gruskay, MD's NPI number?

Jeffrey Gruskay, MD's National Provider Identifier (NPI) is 1588674345, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jeffrey Gruskay, MD located?

The NPPES record lists a practice address at 50 Commerce Park, Milford, CT, 06460. Phone: (203) 882-2066. Providers update this record themselves, so call before visiting.

How can I verify Jeffrey Gruskay, MD's license?

NPPES lists Connecticut license number 026920, 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 Jeffrey Gruskay, MD prescribe under Medicare Part D?

In 2024, Jeffrey Gruskay, MD had 20 Medicare Part D claims; the average among neonatal-perinatal medicine physician prescribers was 33. Part D covers Medicare prescriptions only.

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.