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ROBERT J STILLER M.D.
NPI 1801855804
Obstetrics & Gynecology in Bridgeport, CT

Active since March 20, 2006PECOS Enrolled
93.27/100
CMS Quality Rating
226 MILL HILL AVE, 3RD FLOOR, BRIDGEPORT, CT 06610(203) 384-3873(203) 384-3829 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Robert J Stiller M.d. NPPES

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

ROBERT J STILLER M.D. (NPI 1801855804) is an individual obstetrics & gynecology provider in Bridgeport, Connecticut, licensed in Connecticut (023875) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1801855804
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameROBERT J STILLERCredential: M.D.
Location Address226 MILL HILL AVE, 3RD FLOORBridgeport, CT 06610-2811
Mailing AddressPo Box 5246Bridgeport, CT 06610-0246 · (203) 384-3873 · Fax (203) 384-3829
Phone(203) 384-3873
Fax(203) 384-3829
Sole ProprietorNo
Enumeration DateMarch 20, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
✔ NPI 1801855804 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CT · 023875
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
Also ListedObstetrics & Gynecology · Maternal & Fetal MedicineTaxonomy 207VM0101X · License 023875 (CT)
226 MILL HILL AVE, Bridgeport, CT 06610
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Robert J Stiller M.d. 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 Robert Stiller reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Northeast Medical Group, Inc.
Same address
Internal Medicine
226 MILL HILL AVENUE, 3RD FLR
Bridgeport, CT 06610
  • Reassigned Medicare billing, Connecticut enrollment
  • 1,824 clinicians in this Medicare group
NPI 1043278351 (203) 384-3975
Yale University
14 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

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06610 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$75.55 typical visit price
range $19.76 – $149.26
Typical copayment $18.88 (range $4.94 – $37.31)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

93.27/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality81.72
Promoting Interoperability78.03
Improvement Activities40

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.

KAREN A HUTCHINSON M.D.
Internal Medicine
226 MILL HILL AVE, 3RD FLOOR
BRIDGEPORT, CT 06610
Greater Bridgeport Planning Region (203) 384-3873
ANGELAPIA DEGIROLAMO M.D.
Internal Medicine
226 MILL HILL AVE, 3RD FLOOR
BRIDGEPORT, CT 06610
Greater Bridgeport Planning Region (203) 384-3873
RAPHAEL TORRIONI
Pediatrics
226 MILL HILL AVE
BRIDGEPORT, CT 06610
Greater Bridgeport Planning Region (203) 384-3235
RAJ KUMARI BANSAL MD
Psychiatry & Neurology (Addiction Psychiatry)
226 MILL HILL AVE, 3RD FLOOR
BRIDGEPORT, CT 06610
Greater Bridgeport Planning Region (203) 384-3873
JOANNA ZOLKOWSKI-WYNNE M.D.
Pediatrics
226 MILL HILL AVE, 3RD FLOOR
BRIDGEPORT, CT 06610
Greater Bridgeport Planning Region (203) 384-3873
GARY E KLEINMAN M.D.
Obstetrics & Gynecology
226 MILL HILL AVE, 3RD FLOOR
BRIDGEPORT, CT 06610
Greater Bridgeport Planning Region (203) 384-3873
SADIE SNOW
Nurse Practitioner
226 MILL HILL AVE
BRIDGEPORT, CT 06610
Greater Bridgeport Planning Region (203) 384-3233
MS. PATRICIA ANN O'NEILL APRN
Nurse Practitioner (Adult Health)
226 MILL HILL AVE, 3RD FLOOR
BRIDGEPORT, CT 06610
Greater Bridgeport Planning Region (203) 384-3394

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 Robert Stiller's NPI number?

The NPI number for Robert Stiller is 1801855804. It was assigned to this individual provider in the NPPES registry on March 20, 2006.

Where is Robert Stiller located?

Robert Stiller practices at 226 Mill Hill Ave 3rd Floor, Bridgeport, CT 06610. The listed phone number is (203) 384-3873.

What is Robert Stiller's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Robert Stiller enrolled in Medicare?

Yes. Robert Stiller is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Robert Stiller's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Stiller reassigns Medicare benefits to 2 organizations: Northeast Medical Group, Inc. (Bridgeport, CT) and Yale University (New Haven, 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 Robert Stiller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Robert Stiller accept?

Health plans from Anthem Blue Cross and Blue Shield list Robert Stiller as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Robert Stiller was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.