Dr. Charles O'Brien, DO
- Medicare services, 2022
- 366
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2005
- Practice address
- 15 Hospital Drive, York, ME 03909
- Practice phone
- Call (207) 351-2478
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. O'Brien'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. Charles O'Brien is a diagnostic radiologist in York, Maine
Dr. O'Brien practices at York Hospital in York, Maine, part of MaineHealth.
Dr. O'Brien's NPI, 1801877832, was assigned on November 8, 2005. Dr. O'Brien holds Maine license 1210.
- NPI
- 1801877832NPI Registry (opens in a new tab)
- NPI enumeration date
- November 8, 2005
- NPI status
- Active
- Practice phone
- (207) 351-2478
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Charles O'Brien practices at York Hospital in York, Maine
Dr. O'Brien's primary practice is York Hospital, at 15 Hospital Drive, York, ME 03909 in York County. The practice phone is (207) 351-2478.
- York Hospital15 Hospital Drive, York, ME 03909 · York CountyPhone(207) 351-2478
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Charles O'Brien is affiliated with 1 site of care and 1 medical group
Dr. O'Brien's primary practice is York Hospital in York, Maine, part of MaineHealth. The medical group on file is York Hospital.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Charles O'Brien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Brien practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| York Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Charles O'Brien is one of 163 diagnostic radiologists in Maine
Diagnostic radiology is Dr. O'Brien's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. O'Brien is licensed in Maine.
Specialties and state licenses
- Diagnostic radiology, MainePrimary
Diagnostic radiologists near Dr. O'Brien
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. Charles O'Brien billed Medicare for 366 services in 2022
CMS data shows 366 Medicare services from Dr. O'Brien across 12 procedure codes in 2022. Medicare paid $7,070 for them.
Dr. O'Brien's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Imaging
- 2021: 5932022: 36638%
Where Dr. O'Brien's Medicare services took place, 2022
- In an office216%
- In a facility34594%
Dr. O'Brien compared with the Maine median for diagnostic radiologists, 2022
- Dr. O'Brien
- Maine median
- Medicare services
- 366vs 2,07482% below
Medians across 168 diagnostic radiologists in Maine with Dmand AI profiles that report each measure.
Dr. O'Brien'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.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
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Sources for Dr. Charles O'Brien'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand 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 |
| 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. Charles O'Brien
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. Charles O'Brien's NPI number?
Dr. Charles O'Brien's NPI number is 1801877832. It was assigned on November 8, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Charles O'Brien?
Dr. Charles O'Brien is a diagnostic radiologist in York, Maine. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Charles O'Brien practice?
Dr. O'Brien practices at 15 Hospital Drive, York, ME 03909. Dr. O'Brien's primary practice is York Hospital in York, Maine, part of MaineHealth.
What is Dr. Charles O'Brien's office phone number?
The practice phone on file for Dr. O'Brien is (207) 351-2478.
What is Dr. Charles O'Brien's medical license number?
Dr. O'Brien holds Maine license 1210.
Which hospitals is Dr. Charles O'Brien affiliated with?
Dr. O'Brien practices at York Hospital in York, Maine.
What medical group is Dr. Charles O'Brien part of?
Dr. O'Brien is linked to York Hospital.
Does Dr. Charles O'Brien accept Medicare?
Yes. CMS data shows Dr. O'Brien billed Medicare for 366 services in 2022.
What services does Dr. Charles O'Brien bill to Medicare?
In 2022, Dr. O'Brien's most billed Medicare services were diagnostic imaging (71046), radiation oncology (77080) and diagnostic imaging (71045).
How long has Dr. Charles O'Brien been practicing?
Dr. O'Brien's NPI was assigned in 2005.
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