1. Home
  2. Directory
  3. Connecticut
  4. New Haven
  5. Pediatrics
  6. NPI Profile

JEFFREY R GRUEN MD
NPI 1598748709
Pediatrics - Neonatal-Perinatal Medicine in New Haven, CT

Active since November 22, 2005PECOS EnrolledAccepts Medicare Assignment
20 YORK ST, YNHH (CHILDREN'S) WEST PAVILION - 2ND FLOOR, NEW HAVEN, CT 06504(203) 688-2320(203) 688-5426 Get Directions Write a Review

NPPES record last updated: July 7, 2008. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Jeffrey R Gruen Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JEFFREY R GRUEN MD (NPI 1598748709) is an individual neonatal-perinatal medicine provider in New Haven, Connecticut, licensed in Connecticut (025237) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS and is a graduate of Tulane University School Of Medicine (1981).

NPPES Registry Identity

NPI1598748709
Entity TypeIndividualMale
Primary Taxonomy2080N0001X
Provider Legal NameJEFFREY R GRUENCredential: MD
Location Address20 YORK ST, YNHH (CHILDREN'S) WEST PAVILION - 2ND FLOORNew Haven, CT 06504-8900
Mailing AddressPo Box 9805, 300 George St 6th FloorNew Haven, CT 06536-0805
Phone(203) 688-2320
Fax(203) 688-5426
Sole ProprietorNo
Medical School CMSTulane University School Of MedicineGraduated 1981
Enumeration DateNovember 22, 2005
Last NPPES UpdateJuly 7, 2008
✔ NPI 1598748709 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Neonatal-Perinatal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080N0001X
License✔ Licensed in CT · 025237
Definition

A pediatrician who is the principal care provider for sick newborn infants. Clinical expertise is used for direct patient care and for consulting with obstetrical colleagues to plan for the care of mothers who have high-risk pregnancies.

20 YORK ST, New Haven, CT 06504
Open in Google Maps ↗

Other Identifiers 3

Medicare ID-Type Unspecified370000363CT
Medicare UPINE31739
Medicaid001252379CT

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Jeffrey R Gruen Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2961531819
PECOS Enrollment IDI20250922002213
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. MARY ANNE VAIL LCSW
Social Worker (Clinical)
20 YORK ST, YPH
NEW HAVEN, CT 06504
South Central Connecticut Planning Region (203) 688-9695
JUDIT FARKAS PA-C
Physician Assistant (Surgical)
20 YORK ST
NEW HAVEN, CT 06504
South Central Connecticut Planning Region (203) 688-2000
DR. LEONARD LOIS CALO MD
Hospitalist
20 YORK ST, YNH MEDICAL SERVICES PC - CB 2041
NEW HAVEN, CT 06504
South Central Connecticut Planning Region (203) 688-4748
DR. RICHARD RODION RATHBONE M.D.
Pathology (Clinical Pathology/Laboratory Medicine)
20 YORK ST, YALE-NEW HAVEN HOSPITAL
NEW HAVEN, CT 06504
South Central Connecticut Planning Region (203) 688-2439
DR. OLUKEMI AKANDE MD
Hospitalist
20 YORK ST, YNH MEDICAL SERVICES PC - CB 2041
NEW HAVEN, CT 06504
South Central Connecticut Planning Region (203) 688-4748
MARIE ELOISE EGAN MD
Pediatrics (Pediatric Pulmonology)
20 YORK ST, YNHH (CHILDREN'S) WEST PAVILION 2ND FLOOR
NEW HAVEN, CT 06504
South Central Connecticut Planning Region (203) 785-4081
MS. CAROL LYNN CESTARO LCSW
Social Worker (Clinical)
20 YORK ST, YPH LV-111
NEW HAVEN, CT 06504
South Central Connecticut Planning Region (203) 688-9867
SHEYLA SANTANA MARRANCA PA-C
Physician Assistant (Medical)
20 YORK ST, CB-2041 HOSPITALIST SERVICE
NEW HAVEN, CT 06504
South Central Connecticut Planning Region (203) 688-4748

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jeffrey Gruen's NPI number?

The NPI number for Jeffrey Gruen is 1598748709. It was assigned to this individual provider in the NPPES registry on November 22, 2005.

Where is Jeffrey Gruen located?

Jeffrey Gruen practices at 20 York St Ynhh (children's) West Pavilion - 2nd Floor, New Haven, CT 06504. The listed phone number is (203) 688-2320.

What is Jeffrey Gruen's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Neonatal-Perinatal Medicine, with taxonomy code 2080N0001X.

Is Jeffrey Gruen enrolled in Medicare?

Yes. Jeffrey Gruen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Jeffrey Gruen was last updated on July 7, 2008. NPI Profile syncs with the weekly NPPES data releases published by CMS.