DR. REGINA ONIC HILLSMAN (MD) – Orthopaedic Surgery Physician, NPI 1649256165

DR. REGINA ONIC HILLSMAN (MD) is a healthcare provider. based in Naugatuck, Connecticut. specializing in ORTHOPEDIC SURGERY. They hold the professional credentials MD. They hold a License No. 21015 (CT). The NPI Number for DR. REGINA ONIC HILLSMAN (MD) is 1649256165

Main info

Female
49 Years Of Experience
Accepts Medicare Assignment
Name
DR. REGINA ONIC HILLSMAN (MD)
NPI
1649256165
Phone
(203) 729-6335
Address
1183 NEW HAVEN RD
Enumeration Date
16 December 2005
Last Update Date
7 March 2023

Doctor Profile

Medical School Name
GEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
2036630500
Graduation Year
1977 (49 years ago)
PAC ID
8628977139
Professional Enrollment ID
I20071127000386
Address ID
CT068511059NO101XXMERR201
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness75
Years active:20State licenses:1Digital endpointsOther names

466 ORTHOPEDIC SURGERY in CT

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Provider Addresses for DR. REGINA ONIC HILLSMAN (MD)

  • 1183, New Haven Road, Valley Mobile Home Park, Naugatuck, New Haven County, Connecticut, 06770, United States

    NAUGATUCK, CT 067705033

    Phone: (203) 729-6335

    Type: Location

  • 1183 New Haven Rd

    Naugatuck, CT 067705033

    Phone: (203) 729-6335

    Type: Location

  • 1771, Post Road East, Westport, Western Connecticut Planning Region, Connecticut, 06880, United States

    WESTPORT, CT 06880

    Phone: (203) 586-1181

    Type: Mailing

  • 2 POMPERAUG OFFICE PARK STE 308

    SOUTHBURY, CT 064882293

    Phone: (203) 586-1181

    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: 2007-11-27

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
I20071127000386IOrthopedic SurgeryCTTBD

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 06770)

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Reviews

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Frequently asked questions

Is DR. REGINA ONIC HILLSMAN (MD) listed with a National Provider Identifier?
Yes — DR. REGINA ONIC HILLSMAN (MD) has NPI 1649256165 on file in the registry.
Is there an active status for DR. REGINA ONIC HILLSMAN (MD)?
For scheduling context, DR. REGINA ONIC HILLSMAN (MD) is shown as active in the registry.
What kind of doctor is DR. REGINA ONIC HILLSMAN (MD)?
DR. REGINA ONIC HILLSMAN (MD) is associated with Orthopaedic Surgery Physician in the directory — Clinical services aligned with this taxonomy classification.
What practice footprint exists for DR. REGINA ONIC HILLSMAN (MD)?
Travel planning: use Naugatuck, Connecticut as the reference point for DR. REGINA ONIC HILLSMAN (MD), then confirm.
When was this NPI issued?
Enumeration for DR. REGINA ONIC HILLSMAN (MD) is noted as December 16, 2005 where the registry provides it.

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