Regina Onic Hillsman, MD
Orthopaedic Surgery Physician · Southbury, CT
Regina Onic Hillsman, MD is an orthopaedic surgery physician with a practice address in Southbury, Connecticut, and NPI 1649256165, issued on Dec 16, 2005. Check the license (Connecticut 21015, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Regina Onic Hillsman
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 21015 CT
Self-reported in NPPES; status is on the state search - Practice location
- 2 Pomperaug Office Park Ste 308, Southbury, CT 06488
- Phone
- (203) 586-1181
- Enumerated
- Dec 16, 2005
- Record last updated
- Mar 7, 2023
- Medicare enrollment
- Enrolled (PECOS I20071127000386); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 1977
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 348 in Connecticut → Look up another NPI →
Verify Regina Onic Hillsman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 21015Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
67 Medicare Part D claims for 11 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D.
Most prescribed
- Zolpidem Tartrate14 claims
- Meloxicam13 claims
- Cyclobenzaprine Hcl11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Regina Onic Hillsman among 348 orthopaedic surgery physician records in Connecticut
Regina Onic Hillsman, MD is one of 348 orthopaedic surgery physician records with a practice address in Connecticut. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 79% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1977 · median 2000 among the 224 with a school on file
- Record last updated2023 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in Connecticut
There are 348 orthopaedic surgery physician records in Connecticut.
All 348 in Connecticut → Every provider in Southbury → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Russell Chiappetta, MDSouthington, CT 064891922009091
- Alfredo Axtmayer, MDWallingford, CT 064921598747602
- Gerald Cambria, M.D.Shelton, CT 064841942239165
- Brendan Comer, MDWallingford, CT 064921922595008
- Aaron Covey, MD, MBAWallingford, CT 064921215194105
- Jon Driscoll, M.D.Wallingford, CT 064921386667574
- Adam Ferguson, D.O.Wallingford, CT 064921144514522
- Megan Gleason, MDShelton, CT 064841184948911
Common questions
What is Regina Onic Hillsman, MD's NPI number?
Regina Onic Hillsman, MD's National Provider Identifier (NPI) is 1649256165, issued on Dec 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Regina Onic Hillsman, MD located?
The NPPES record lists a practice address at 2 Pomperaug Office Park Ste 308, Southbury, CT, 06488. Phone: (203) 586-1181. Providers update this record themselves, so call before visiting.
How can I verify Regina Onic Hillsman, MD's license?
NPPES lists Connecticut license number 21015, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Regina Onic Hillsman, MD prescribe under Medicare Part D?
In 2024, Regina Onic Hillsman, MD had 67 Medicare Part D claims for 11 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.