Dr. Regina Onic Hillsman, MD
- Medicare services, 2017
- 126
- Part D claims, 2024
- 67
- Industry payments
- $50
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 2150 E Main St, Waterbury, CT 06705
- Practice phone
- Call (203) 574-1311
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Naugatuck Valley MRI LLC
Waterbury, Connecticut
Find Dr. Hillsman's professional email, personal email and mobile number
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Dr. Regina Onic Hillsman is an orthopedic surgeon in Waterbury, Connecticut
Dr. Hillsman practices at Naugatuck Valley MRI LLC in Waterbury, Connecticut.
Dr. Hillsman's NPI, 1649256165, was assigned on December 16, 2005. Dr. Hillsman graduated from George Washington University School of Medicine in 1977. Dr. Hillsman holds Connecticut license 21015.
- NPI
- 1649256165NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628977139
- NPI enumeration date
- December 16, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (203) 574-1311
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 75
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Regina Onic Hillsman practices at Naugatuck Valley MRI LLC in Waterbury, Connecticut
Dr. Hillsman's primary practice is Naugatuck Valley MRI LLC, at 2150 E Main St, Waterbury, CT 06705 in Naugatuck Vly County. The practice phone is (203) 574-1311.
- Naugatuck Valley MRI LLC2150 E Main St, Waterbury, CT 06705 · Naugatuck Vly CountyPhone(203) 574-1311
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Regina Onic Hillsman is affiliated with 2 sites of care
Dr. Hillsman's primary practice is Naugatuck Valley MRI LLC in Waterbury, Connecticut. Dmand AI also links Dr. Hillsman to 1 physician office, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Regina Onic Hillsman's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hillsman practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Naugatuck Valley MRI LLC | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Regina Onic Hillsman is one of 300 orthopedic surgeons in Connecticut
Orthopaedic surgery is Dr. Hillsman's primary specialty in the NPI Registry, under taxonomy code 207X00000X. Dr. Hillsman is licensed in Connecticut.
Specialties and state licenses
- Orthopaedic surgery, ConnecticutPrimary
Orthopedic surgeons near Dr. Hillsman
Counts of orthopedic surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Regina Onic Hillsman billed Medicare for 126 services in 2017
CMS data shows 126 Medicare services from Dr. Hillsman across 2 procedure codes in 2017. Medicare paid $3,321 for them. Every service was in an office.
Dr. Hillsman's Medicare services by type, 2016 to 2017
- 2016
- 2017
- Office and hospital visits
- 2016: 652017: 642%
- Drugs given in the office
- 2016: 1802017: 6266%
- Surgery
- 2016: 272017: 0100%
Dr. Hillsman compared with the Connecticut median for orthopedic surgeons, 2017
- Dr. Hillsman
- Connecticut median
- Medicare services
- 126vs 86485% below
- Part D claims
- 38vs 12269% below
Medians across 297 orthopedic surgeons in Connecticut with Dmand AI profiles that report each measure.
Dr. Hillsman's most billed Medicare procedure codes, 2017
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Hillsman and other orthopedic surgeons in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Regina Onic Hillsman's patients have a median age of 53
Across all payers, Dmand AI patient panel data puts Dr. Hillsman's median patient age at 53, with 48% women.
Dr. Hillsman's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 53
Patient panel by sex, all payers
- Women48%
- Men48%
Source: Dmand AI Patient Panel Data
Dr. Regina Onic Hillsman wrote 67 Medicare Part D claims in 2024
In 2024, Dr. Hillsman wrote 67 Medicare Part D claims for 11 patients. 97% of them were for generic drugs. CMS names the drug for 38 of them, across 3 drugs with 11 or more claims each, at $163 in total drug cost. In 2023, CMS named 34 claims across 2 drugs.
Dr. Hillsman's Part D claims by kind of drug, 2024
- Generic65 claims97%
- Brand-name and other2 claims3%
Dr. Hillsman's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 342024: 3812%
Drugs named by CMS: 3 in 2024, 2 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Regina Onic Hillsman takes part in Medicare
Dr. Hillsman accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Regina Onic Hillsman received $50 in industry payments from 2017 to 2019
CMS Open Payments shows 2 general payments to Dr. Hillsman from 2 drug and device companies from 2017 to 2019. Food and beverage make up the largest share, 100% of the total. Smith & Nephew, Inc. paid the most, $33.
General payments to Dr. Hillsman by program year, 2017 to 2019
Companies that paid Dr. Hillsman the most, 2017 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Regina Onic Hillsman graduated from George Washington University School of Medicine
Dr. Hillsman graduated from George Washington University School of Medicine in 1977.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Regina Onic Hillsman's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Regina Onic Hillsman
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What is Dr. Regina Onic Hillsman's NPI number?
Dr. Regina Onic Hillsman's NPI number is 1649256165. It was assigned on December 16, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Regina Onic Hillsman?
Dr. Regina Onic Hillsman is an orthopedic surgeon in Waterbury, Connecticut. The primary specialty in the NPI Registry is Orthopaedic Surgery Physician (taxonomy code 207X00000X).
Where does Dr. Regina Onic Hillsman practice?
Dr. Hillsman practices at 2150 E Main St, Waterbury, CT 06705. Dr. Hillsman's primary practice is Naugatuck Valley MRI LLC in Waterbury, Connecticut. Dmand AI also links Dr. Hillsman to 1 physician office.
What is Dr. Regina Onic Hillsman's office phone number?
The practice phone on file for Dr. Hillsman is (203) 574-1311.
What is Dr. Regina Onic Hillsman's medical license number?
Dr. Hillsman holds Connecticut license 21015.
Does Dr. Regina Onic Hillsman accept Medicare?
Yes. CMS data shows Dr. Hillsman billed Medicare for 126 services in 2017, and Dr. Hillsman accepts Medicare assignment.
What services does Dr. Regina Onic Hillsman bill to Medicare?
In 2017, Dr. Hillsman's most billed Medicare services were office visit, established patient (99213) and injected or infused drug (J1885).
Where did Dr. Regina Onic Hillsman go to medical school?
Dr. Hillsman graduated from George Washington University School of Medicine in 1977.
What drugs does Dr. Regina Onic Hillsman prescribe most?
In 2024 Medicare Part D data, Dr. Hillsman's most prescribed drugs by claims were Zolpidem Tartrate, Meloxicam and Cyclobenzaprine HCl.
Has Dr. Regina Onic Hillsman received payments from drug or device companies?
CMS Open Payments shows $50 in general payments to Dr. Hillsman from 2 companies from 2017 to 2019. The largest total came from Smith & Nephew, Inc.
How long has Dr. Regina Onic Hillsman been practicing?
Dr. Hillsman graduated from medical school in 1977, 49 years ago.
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