Douglas A. O'Brien, M.D.
Otolaryngology Physician · Brockton, MA
Douglas A. O'Brien, M.D. is an otolaryngology physician with a practice address in Brockton, Massachusetts, and NPI 1245298629, issued on May 3, 2006. Check the license (Massachusetts 209221, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Douglas A. O'Brien
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 209221 MA
Self-reported in NPPES; status is on the state search - Practice location
- 35 Pearl St Ste 100, Brockton, MA 02301
- Phone
- (508) 588-8034
- Enumerated
- May 3, 2006
- Record last updated
- Apr 17, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (508) 588-5969
- Medicare enrollment
- Enrolled (PECOS I20110606000474); accepts Medicare assignment
- Medical or professional school
- Perelman School Of Med At The University Of Pennsylvania, 1996
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 364 in Massachusetts → Look up another NPI →
Also registered at 35 Pearl St Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Seema Byahatti, M.D.Otolaryngology Physician1972518264
- Walid Dagher, MDOtolaryngology Physician1225219173
- Jagdish Dhingra, M.D.Otolaryngology Physician1275557738
- Jessica Jackson, AU.D.Audiologist1861875486
- Diana Murphy, AUDAudiologist1699175307
- Pratik Pradhan, M.D.Otolaryngology Physician1881652832
Verify Douglas A. O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 209221Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average otolaryngology physician in 2024
331 Medicare Part D claims for 125 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
Most prescribed
- Famotidine72 claims
- Prednisone57 claims
- Omeprazole32 claims
- Ipratropium Bromide29 claims
- Amoxicillin-Clavulanate Potass22 claims
- Cefdinir19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 97 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $21.86
1 payment: food and beverage; the largest payer was Optinose US, Inc. The 6,429 providers of this specialty with any payment received $1,922.50 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Associates IN Otolaryngology Head And Neck Surgery, PCWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Douglas A. O'Brien among 364 otolaryngology physician records in Massachusetts
Douglas A. O'Brien, M.D. is one of 364 otolaryngology physician records with a practice address in Massachusetts. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 54% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1996 · median 2004 among the 239 with a school on file
- Record last updated2018 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Massachusetts
There are 364 otolaryngology physician records in Massachusetts.
All 364 in Massachusetts → Every provider in Brockton → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Seema Byahatti, M.D.Brockton, MA 023011972518264
- Walid Dagher, MDBrockton, MA 023011225219173
- Jagdish Dhingra, M.D.Brockton, MA 023011275557738
- Emily Gjini, MDBrockton, MA 023011215497938
- Pratik Pradhan, M.D.Brockton, MA 023011881652832
- Kimberly Russell, MDBrockton, MA 023011326305905
- Ameer Shah, M.D.Brockton, MA 023011538507512
- Russell Shu, M.D.Brockton, MA 023011134134422
Common questions
What is Douglas A. O'Brien, M.D.'s NPI number?
Douglas A. O'Brien, M.D.'s National Provider Identifier (NPI) is 1245298629, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas A. O'Brien, M.D. located?
The NPPES record lists a practice address at 35 Pearl St Ste 100, Brockton, MA, 02301. Phone: (508) 588-8034. Providers update this record themselves, so call before visiting.
How can I verify Douglas A. O'Brien, M.D.'s license?
NPPES lists Massachusetts license number 209221, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Douglas A. O'Brien, M.D. prescribe under Medicare Part D?
In 2024, Douglas A. O'Brien, M.D. had 331 Medicare Part D claims for 125 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Douglas A. O'Brien, M.D.'s MIPS final score?
The 2023 MIPS final score is 97 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.