ROBERT J STILLER (M.D.) – Obstetrics & Gynecology Physician, NPI 1801855804

ROBERT J STILLER (M.D.) is a healthcare provider. based in Bridgeport, Connecticut. specializing in Obstetrics & Gynecology Physician. They hold the professional credentials M.D.. They hold a License No. 023875 (CT). The NPI Number for ROBERT J STILLER (M.D.) is 1801855804

Main info

Male
47 Years Of Experience
Accepts Medicare Assignment
Name
ROBERT J STILLER (M.D.)
NPI
1801855804
Phone
(203) 384-3873
Address
PO BOX 5246
Enumeration Date
20 March 2006
Last Update Date
11 September 2025

Doctor Profile

Medical School Name
OTHER
Secondary Phone
-
Graduation Year
1979 (47 years ago)
PAC ID
3971638610
Group Practice PAC ID
1254233836
Professional Enrollment ID
I20100319000000
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience59
Completeness85
Years active:20State licenses:1Digital endpointsOther names

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Provider Addresses for ROBERT J STILLER (M.D.)

  • Bridgeport Post Office, Golden Hill Street, Bridgeport Downtown South Historic District, East Bridgeport, Bridgeport, Greater Bridgeport Planning Region, Connecticut, 06604, United States

    BRIDGEPORT, CT 066100246

    Phone: (203) 384-3873

    Fax: (203) 384-3829

    Type: Mailing

  • 226, Mill Hill Avenue, Historic East Side, Bridgeport, Fairfield County, Connecticut, 06610, United States

    3RD FLOOR

    BRIDGEPORT, CT 066102811

    Phone: (203) 384-3873

    Fax: (203) 384-3829

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2010-03-19

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20100319000000IObstetrics/GynecologyCTTBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 06610)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 1254233836View full group profile
NameSpecialtyState
Interventional Cardiology, Cardiovascular Disease (Cardiology)CT
-CT
-CT
Internal MedicineNJ
Hospitalist, Internal MedicineCT
-CT
-CT
Internal MedicineCT
Nurse PractitionerCT
Physician AssistantCT

Reviews

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Frequently asked questions

Is ROBERT J STILLER (M.D.) listed with a National Provider Identifier?
Yes — ROBERT J STILLER (M.D.) has NPI 1801855804 on file in the registry.
Is ROBERT J STILLER (M.D.) shown as active in public data?
Registry records indicate ROBERT J STILLER (M.D.) maintains an active NPI.
How would a patient describe ROBERT J STILLER (M.D.)'s focus?
For ROBERT J STILLER (M.D.), the primary taxonomy reads as Obstetrics & Gynecology Physician. Clinical services aligned with this taxonomy classification.
What locale is associated with ROBERT J STILLER (M.D.)?
Directory geography for ROBERT J STILLER (M.D.) centers on Bridgeport, Connecticut.
Does ROBERT J STILLER (M.D.) accept insurance?
Insurance participation is not part of the core NPI extract — call the plan or office to confirm.

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