Dr. Michael R. O'Reilly, MD
- Medicare services, 2022
- 104
- Part D claims, 2022
- 37
- Industry payments
- $4,123
- Affiliated sites
- 2
- Medical groups
- 2
- Practice address
- 4 Corporate Dr, Shelton, CT 06484-6211
- Practice phone
- Call (203) 944-9898
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Women's Health Center
Women's health practice · Shelton, Connecticut
Find Dr. O'Reilly's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Michael R. O'Reilly is an OB-GYN in Bridgeport, Connecticut
Dr. O'Reilly practices at Women's Health Center in Shelton, Connecticut.
Dr. O'Reilly's NPI, 1891723995, was assigned on June 28, 2006. Dr. O'Reilly holds Connecticut license 031581.
- NPI
- 1891723995NPI Registry (opens in a new tab)
- NPI enumeration date
- June 28, 2006
- NPI status
- Active
- Practice phone
- (203) 944-9898
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael R. O'Reilly practices in Shelton and Bridgeport
Dr. O'Reilly's primary practice is Women's Health Center, at 4 Corporate Dr, Shelton, CT 06484-6211. The practice phone is (203) 944-9898. The NPI Registry lists Dr. O'Reilly's practice address as 2800 Main St, Bridgeport, CT 06606.
- Women's Health CenterPrimary4 Corporate Dr, Shelton, CT 06484-6211Phone(203) 944-9898
- NPI Registry address2800 Main St, Bridgeport, CT 06606 · Greater Bridgeport CountyPhone(203) 944-9898
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Michael R. O'Reilly is affiliated with 2 sites of care and 2 medical groups
Dr. O'Reilly's primary practice is Women's Health Center in Shelton, Connecticut. The medical group on file is Trinity Health Of New England Medical Group. Dmand AI also links Dr. O'Reilly to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Michael R. O'Reilly's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Reilly practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Women's Health Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael R. O'Reilly is one of 591 OB-GYNs in Connecticut
Obstetrics and gynecology is Dr. O'Reilly's primary specialty in the NPI Registry, under taxonomy code 207V00000X. Dr. O'Reilly is licensed in Connecticut.
Specialties and state licenses
- Obstetrics and gynecology, ConnecticutPrimary
OB-GYNs near Dr. O'Reilly
Counts of OB-GYNs 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. Michael R. O'Reilly billed Medicare for 104 services in 2022
CMS data shows 104 Medicare services from Dr. O'Reilly across 6 procedure codes in 2022. Medicare paid $4,072 for them. Every service was in an office.
Dr. O'Reilly's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Other services
- 2021: 822022: 5533%
- Lab and pathology
- 2021: 372022: 2046%
- Office and hospital visits
- 2021: 152022: 15No change
- Imaging
- 2021: 402022: 1465%
Dr. O'Reilly compared with the Connecticut median for OB-GYNs, 2022
- Dr. O'Reilly
- Connecticut median
- Medicare services
- 104vs 7049% above
- Part D claims
- 37vs 5431% below
Medians across 541 OB-GYNs in Connecticut with Dmand AI profiles that report each measure.
Dr. O'Reilly's most billed Medicare procedure codes, 2022
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. O'Reilly?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. O'Reilly and other OB-GYNs in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael R. O'Reilly's patients have a median age of 44
Across all payers, Dmand AI patient panel data puts Dr. O'Reilly's median patient age at 44, with 98% women.
Dr. O'Reilly's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women98%
- Men2%
Source: Dmand AI Patient Panel Data
Dr. Michael R. O'Reilly wrote 37 Medicare Part D claims in 2022
In 2022, Dr. O'Reilly wrote 37 Medicare Part D claims. They cover 2 drugs, with $2,479 in total drug cost. In 2021, CMS named 39 claims across 3 drugs.
Dr. O'Reilly's most prescribed drugs by claims, 2022
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, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 392022: 375%
Drugs named by CMS: 2 in 2022, 3 in 2021.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Michael R. O'Reilly received $4,123 in industry payments from 2016 to 2023
CMS Open Payments shows 191 general payments to Dr. O'Reilly from 32 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 96% of the total. Abbvie Inc. paid the most, $835.
General payments to Dr. O'Reilly by program year, 2016 to 2023
General payments to Dr. O'Reilly by kind, 2016 to 2023
- Food and beverage$3,94796%
- Education$1764%
Companies that paid Dr. O'Reilly the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Michael R. O'Reilly'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Michael R. O'Reilly
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Michael R. O'Reilly's NPI number?
Dr. Michael R. O'Reilly's NPI number is 1891723995. It was assigned on June 28, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael R. O'Reilly?
Dr. Michael R. O'Reilly is an OB-GYN in Bridgeport, Connecticut. The primary specialty in the NPI Registry is Obstetrics & Gynecology Physician (taxonomy code 207V00000X).
Where does Dr. Michael R. O'Reilly practice?
Dr. O'Reilly practices at 4 Corporate Dr, Shelton, CT 06484-6211. Dr. O'Reilly also practices at 2800 Main St, Bridgeport, CT 06606. Dr. O'Reilly's primary practice is Women's Health Center in Shelton, Connecticut. Dmand AI also links Dr. O'Reilly to 1 group practice or clinic and 1 medical group.
What is Dr. Michael R. O'Reilly's office phone number?
The practice phone on file for Dr. O'Reilly is (203) 944-9898.
What is Dr. Michael R. O'Reilly's medical license number?
Dr. O'Reilly holds Connecticut license 031581.
What medical group is Dr. Michael R. O'Reilly part of?
Dr. O'Reilly is linked to Trinity Health Of New England Medical Group. Dmand AI links Dr. O'Reilly to 1 more medical group.
Does Dr. Michael R. O'Reilly accept Medicare?
Yes. CMS data shows Dr. O'Reilly billed Medicare for 104 services in 2022.
What services does Dr. Michael R. O'Reilly bill to Medicare?
In 2022, Dr. O'Reilly's most billed Medicare services were medicare service (G0101), medicare service (G0328) and lab and pathology test (81002).
What drugs does Dr. Michael R. O'Reilly prescribe most?
In 2022 Medicare Part D data, Dr. O'Reilly's most prescribed drugs by claims were Estradiol and Clotrimazole-Betamethasone.
Has Dr. Michael R. O'Reilly received payments from drug or device companies?
CMS Open Payments shows $4,123 in general payments to Dr. O'Reilly from 32 companies from 2016 to 2023. The largest total came from Abbvie Inc.
How long has Dr. Michael R. O'Reilly been practicing?
Dr. O'Reilly graduated from medical school in 1987, 39 years ago.
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