DR. REGINA ONIC HILLSMAN MD
NPI 1649256165
Orthopaedic Surgery in Southbury, CT
About Dr. Regina Onic Hillsman Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. REGINA ONIC HILLSMAN MD (NPI 1649256165) is an individual orthopaedic surgery provider in Southbury, Connecticut, licensed in Connecticut (21015) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS, maintains a secondary practice location in Naugatuck, and is a graduate of George Washington University School Of Medicine (1977).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 14
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Regina Onic Hillsman 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.
Medicare Billing Reassignment
Medicare enrollment records show Regina Hillsman reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Southbury, CT 06488
- Reassigned Medicare billing, Connecticut enrollment
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 06488 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SOUTHBURY, CT 06488
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 Regina Hillsman's NPI number?
The NPI number for Regina Hillsman is 1649256165. It was assigned to this individual provider in the NPPES registry on December 16, 2005.
Where is Regina Hillsman located?
Regina Hillsman practices at 2 Pomperaug Office Park Ste 308, Southbury, CT 06488. The listed phone number is (203) 586-1181.
What is Regina Hillsman's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Regina Hillsman enrolled in Medicare?
Yes. Regina Hillsman 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.
Which organization bills Medicare for Regina Hillsman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Regina Hillsman reassigns Medicare benefits to Dr R Hillsman MD PC (Southbury, CT). The 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 Regina Hillsman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Regina Hillsman accept?
Health plans from Anthem Blue Cross and Blue Shield list Regina Hillsman 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 Regina Hillsman was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Dr. Regina Onic Hillsman, MD · NPI 1649256165
Orthopaedic Surgery physician in Southbury, Connecticut. Individual provider, active in the CMS NPPES registry since December 16, 2005.
## Identity
- **NPI:** 1649256165 (Entity type: Individual)
- **Enumerated:** December 16, 2005
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 21015 (Connecticut)
- **Sole proprietor:** No
## Practice location
- **Address:** 2 POMPERAUG OFFICE PARK STE 308, Southbury, CT 06488-2293
- **Phone:** (203) 586-1181
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Dr R Hillsman MD PC (NPI 1295700441, Southbury, CT), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** George Washington University School Of Medicine, class of 1977
## Record status
- **NPPES last updated:** March 7, 2023
- **Other identifiers:** Other 2108419; Other 17903; Other 21015; and 11 more
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Source: [NPI Profile](https://npiprofile.com/npi/1649256165) · Data from the CMS NPPES public registry.