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Physician Profile

Daniel O'Brien, M.D.

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At a glance

About Dr. O'brien

Daniel O'Brien, M.D. practices anesthesiology in Fitchburg, MA. According to Medicare claims data, Daniel cared for 198 Medicare patients across 202 services. The services billed most often include anesthesia for lens surgery, anesthesia for exam of colon using an endoscope, and anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope. The provider's National Provider Identifier (NPI) is 1033144852.

Factual summary compiled by Guide.md from public records; not written by this provider.

Education & Training

School Other Graduated: 1975

Specialty

Anesthesiology (Primary)

Credentials & Licensing

MA licenceAs reported to the NPI registry
No. 58686As reported
NPINational Provider Identifier
1033144852Issued 2006

As reported to the NPI registry ↗

Medicare information

Accepts Medicare assignmentYes
Medicare opt-outNo
Can order and refer in MedicareYes

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What does Daniel O'Brien specialize in?

Daniel O'Brien is an anesthesiologist in Fitchburg, MA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Anesthesiology”.

NPI registry

Where is Daniel O'Brien located?

Daniel O'Brien is listed at 326 Nichols Rd Suite 16, Fitchburg, MA 01420. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Daniel O'Brien's phone number?

The number on file is (978) 665-5800. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Daniel O'Brien's NPI number?

Daniel O'Brien's National Provider Identifier is 1033144852. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

Where did Daniel O'Brien train?

Daniel O'Brien attended Other, graduating in 1975. This comes from the CMS National Downloadable File.

CMS public data

How long has Daniel O'Brien been practicing?

Daniel O'Brien has 51 years experience. Calculated from a graduation year of 1975, reported in the CMS National Downloadable File.

CMS public data

What does Daniel O'Brien do most often?

According to Medicare billing data, Daniel O'Brien provides treatments such as anesthesia for lens surgery and anesthesia for exam of colon using an endoscope. This reflects Medicare patients only and is billing volume, not a measure of quality.

Medicare claims

Has Daniel O'Brien confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Daniel O'Brien. If this is you, claiming it is free.

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