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DR. ISABEL THERESIA GROSS M.D., PHD, MPH
NPI 1437413796
Pediatrics - Pediatric Emergency Medicine in New Haven, CT

Active since July 01, 2012PECOS Enrolled
333 CEDAR ST, NEW HAVEN, CT 06510(203) 737-7440 Get Directions Write a Review

NPPES record last updated: August 9, 2019. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 9, 2019, May 13, 2016 (2 updates tracked since 2016).

About Dr. Isabel Theresia Gross M.d., Phd, Mph NPPES

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

DR. ISABEL THERESIA GROSS M.D., PHD, MPH (NPI 1437413796) is an individual pediatric emergency medicine provider in New Haven, Connecticut, licensed in Connecticut (61913) and active in the NPI registry since July 2012. She is enrolled in Medicare PECOS and maintains a secondary practice location in New Haven.

NPPES Registry Identity

NPI1437413796
Entity TypeIndividualFemale
Primary Taxonomy2080P0204X
Provider Legal NameDR. ISABEL THERESIA GROSSCredential: M.D., PHD, MPH
Location Address333 CEDAR STNew Haven, CT 06510-3206
Mailing Address333 Cedar StNew Haven, CT 06510-3206
Phone(203) 737-7440
Sole ProprietorNo
Enumeration DateJuly 1, 2012
Last NPPES UpdateAugust 9, 20192 updates tracked since enumeration
✔ NPI 1437413796 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric Emergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2080P0204X
License✔ Licensed in CT · 61913
Definition
A pediatrician who has special qualifications to manage emergencies in infants and children.
333 CEDAR ST, New Haven, CT 06510
Open in Google Maps ↗

Secondary Practice Location 1

Location 1100 York StNew Haven, CT 06511-5620 · Phone (203) 824-8108

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Isabel Theresia Gross M.d., Phd, Mph is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignments

2

Medicare enrollment records show Isabel Gross reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Yale University
0.3 mi
Advanced Practice Midwife
100 CHURCH ST S STE 200, YALE SCHOOL OF NURSING
New Haven, CT 06519
  • Reassigned Medicare billing, Connecticut enrollment
  • 3,728 clinicians in this Medicare group
NPI 1124148887 (203) 737-5432
Bridgeport Hospital
9.0 mi
General Acute Care Hospital
300 SEASIDE AVE
Milford, CT 06460
  • Reassigned Medicare billing, Connecticut enrollment
  • 219 clinicians in this Medicare group
NPI 1619553021 (203) 876-4000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

DR. BRIAN CHRISTOPHER CAMBI M.D.
Internal Medicine (Interventional Cardiology)
333 CEDAR ST, DCB 3
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 785-4129
MATTHEW JOSEPH MCCONNELL M.D.
Internal Medicine (Gastroenterology)
333 CEDAR ST, YNHH INTERNAL MEDICINE-GI,SECTION OF DIGESTIVE DISEASES
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 785-7012
DR. SRI SMITHA KANAPARTHY M.D.
Anesthesiology (Pediatric Anesthesiology)
333 CEDAR ST, TMP 3
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 785-2802
SUNDES KAZMIR M.D.
Student in an Organized Health Care Education/Training Program
333 CEDAR ST, YALE-NEW HAVEN HOSPITAL DEPARTMENT OF PEDIATRICS
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-1947
ANASTASIA KOPTELOVA MD
Anesthesiology
333 CEDAR ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-4242
ROBERT MCNAMARA MD
Internal Medicine (Cardiovascular Disease)
333 CEDAR ST, FMP 3
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 785-4127
DR. BRANDI PARKER COTTON APRN
Nurse Practitioner (Psychiatric/Mental Health)
333 CEDAR ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 432-1333
SARAH ELIZABETH SCHELLHORN MD
Internal Medicine (Medical Oncology)
333 CEDAR ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 785-4095

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 Isabel Gross's NPI number?

The NPI number for Isabel Gross is 1437413796. It was assigned to this individual provider in the NPPES registry on July 1, 2012.

Where is Isabel Gross located?

Isabel Gross practices at 333 Cedar St, New Haven, CT 06510. The listed phone number is (203) 737-7440.

What is Isabel Gross's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Emergency Medicine, with taxonomy code 2080P0204X.

Is Isabel Gross enrolled in Medicare?

Yes. Isabel Gross is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Isabel Gross's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Isabel Gross reassigns Medicare benefits to 2 organizations: Yale University (New Haven, CT) and Bridgeport Hospital (Milford, CT). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Isabel Gross's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Isabel Gross was last updated on August 9, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.