Dr. Stephen C. O'Connor, MD
- Medicare services, 2024
- 1,628
- Medicare patients, 2024
- 1,479
- Hospital affiliations
- 5
- Medical groups
- 2
- State licenses
- 2
- Practice address
- 759 Chestnut Street, Springfield, MA 01199
- Practice phone
- Call (413) 794-0000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. O'Connor's professional email, personal email and mobile number
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Dr. Stephen C. O'Connor is a diagnostic radiologist in Springfield, Massachusetts
Dr. O'Connor practices at Baystate Medical Center in Springfield, Massachusetts, part of Baystate Health.
Dr. O'Connor's NPI, 1427083237, was assigned on July 11, 2006. Dr. O'Connor graduated from Boston University School of Medicine in 1990. Dr. O'Connor holds Massachusetts license 078444.
- NPI
- 1427083237NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426024951
- NPI enumeration date
- July 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (413) 794-0000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen C. O'Connor practices at Baystate Medical Center in Springfield, Massachusetts
Dr. O'Connor's primary practice is Baystate Medical Center, at 759 Chestnut Street, Springfield, MA 01199 in Hampden County. The practice phone is (413) 794-0000.
- Baystate Medical Center759 Chestnut Street, Springfield, MA 01199 · Hampden CountyPhone(413) 794-0000
Source: Dmand AI Affiliation Data
Dr. Stephen C. O'Connor is affiliated with 7 sites of care and 2 medical groups
Dr. O'Connor's primary practice is Baystate Medical Center in Springfield, Massachusetts, part of Baystate Health. Dr. O'Connor is also affiliated with Cooley Dickinson Hospital. The medical group on file is Radiology & Imaging. Dmand AI also links Dr. O'Connor to 3 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stephen C. O'Connor's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Connor practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Baystate Medical Center | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Baystate Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Stephen C. O'Connor is one of 1,246 diagnostic radiologists in Massachusetts
Diagnostic radiology is Dr. O'Connor's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dmand AI has Dr. O'Connor's licenses on file in 2 states: Massachusetts and Connecticut.
Specialties and state licenses
- Diagnostic radiology, MassachusettsPrimary
- Connecticut license
Diagnostic radiologists near Dr. O'Connor
Counts of diagnostic radiologists 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. Stephen C. O'Connor billed Medicare for 1,628 services in 2024
CMS data shows 1,628 Medicare services from Dr. O'Connor across 30 procedure codes in 2024, for 1,479 Medicare patients. Medicare paid $35,202 for them.
Dr. O'Connor's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,8142024: 1,57713%
- Tests and treatments
- 2023: 652024: 5122%
- Other services
- 2023: 1,1002024: 0100%
Where Dr. O'Connor's Medicare services took place, 2024
- In an office553%
- In a facility1,57397%
Dr. O'Connor compared with the Massachusetts median for diagnostic radiologists, 2024
- Dr. O'Connor
- Massachusetts median
- Medicare services
- 1,628vs 2,24227% below
- Medicare patients
- 1,479vs 1,5716% below
Medians across 1,108 diagnostic radiologists in Massachusetts with Dmand AI profiles that report each measure.
Dr. O'Connor's most billed Medicare procedure codes, 2024
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'Connor?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. O'Connor and other diagnostic radiologists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen C. O'Connor treated 1,479 Medicare patients in 2024, average age 70
CMS counts 1,479 Medicare patients who saw Dr. O'Connor in 2024. The largest group is 65 to 74, with 503 patients. 75% of them have high blood pressure, and 69% have high cholesterol. 44% are also on Medicaid. Their average risk score is 1.96, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. O'Connor's median patient age at 19, with 47% women.
Dr. O'Connor's Medicare patients by age, 2024
Dr. O'Connor's Medicare patients by sex, 2024
- Women81555%
- Men66445%
Chronic conditions among Dr. O'Connor's Medicare patients, 2024
- High blood pressure75%
- High cholesterol69%
- Arthritis52%
- Mood disorders47%
- Anxiety45%
- Depression41%
- Diabetes35%
- Ischemic heart disease35%
Share of Medicare patients with each condition. A patient can have several.
Dr. O'Connor's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 19
Patient panel by sex, all payers
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Stephen C. O'Connor takes part in Medicare
Dr. O'Connor 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. Stephen C. O'Connor graduated from Boston University School of Medicine
Dr. O'Connor graduated from Boston University School of Medicine in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen C. O'Connor'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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 DataMedicare Physician & Other Practitioners - 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) |
| 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. Stephen C. O'Connor
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. Stephen C. O'Connor's NPI number?
Dr. Stephen C. O'Connor's NPI number is 1427083237. It was assigned on July 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen C. O'Connor?
Dr. Stephen C. O'Connor is a diagnostic radiologist in Springfield, Massachusetts. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Stephen C. O'Connor practice?
Dr. O'Connor practices at 759 Chestnut Street, Springfield, MA 01199. Dr. O'Connor's primary practice is Baystate Medical Center in Springfield, Massachusetts, part of Baystate Health. Dmand AI also links Dr. O'Connor to 3 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. Stephen C. O'Connor's office phone number?
The practice phone on file for Dr. O'Connor is (413) 794-0000.
What is Dr. Stephen C. O'Connor's medical license number?
Dr. O'Connor holds Massachusetts license 078444, one of the licenses on file in 2 states.
Which states has Dr. Stephen C. O'Connor been licensed in?
Dmand AI has state licenses on file for Dr. O'Connor in Massachusetts and Connecticut.
Which hospitals is Dr. Stephen C. O'Connor affiliated with?
Dr. O'Connor practices at Baystate Medical Center in Springfield, Massachusetts. Dr. O'Connor is also affiliated with Cooley Dickinson Hospital. Dmand AI links Dr. O'Connor to 3 more hospitals.
What medical group is Dr. Stephen C. O'Connor part of?
Dr. O'Connor is linked to Radiology & Imaging. Dmand AI links Dr. O'Connor to 1 more medical group.
Does Dr. Stephen C. O'Connor accept Medicare?
Yes. CMS data shows Dr. O'Connor billed Medicare for 1,628 services in 2024, and Dr. O'Connor accepts Medicare assignment.
How many Medicare patients does Dr. Stephen C. O'Connor see?
CMS counts 1,479 Medicare patients who saw Dr. O'Connor in 2024, with an average age of 70.
Show 3 more questionsShow fewer questions
What services does Dr. Stephen C. O'Connor bill to Medicare?
In 2024, Dr. O'Connor's most billed Medicare services were diagnostic imaging (71046), diagnostic imaging (71045) and diagnostic imaging (70450).
Where did Dr. Stephen C. O'Connor go to medical school?
Dr. O'Connor graduated from Boston University School of Medicine in 1990.
How long has Dr. Stephen C. O'Connor been practicing?
Dr. O'Connor graduated from medical school in 1990, 36 years ago.
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