Thomas Patrick O'Brien, PA-C
Surgical Physician Assistant · Plymouth, MA
Thomas Patrick O'Brien, PA-C is a surgical physician assistant with a practice address in Plymouth, Massachusetts, and NPI 1225447626, issued on Aug 11, 2014. Check the license (Massachusetts PA7872, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Thomas Patrick O'Brien
- Credential
- PA-C
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- License numbers
- PA7872 MA
2416 MA
PA1851 NV
AT00339 RI
Self-reported in NPPES; status is on the state search - Practice location
- 23 White St, Plymouth, MA 02360
- Phone
- (774) 991-1400
- Enumerated
- Aug 11, 2014
- Record last updated
- Nov 10, 2025
- Entity
- Type 1 · individual
8 nearest surgical physician assistant records → All 516 in Massachusetts → Look up another NPI →
Verify Thomas Patrick O'Brien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license PA7872Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average surgical physician assistant in 2024
201 Medicare Part D claims for 127 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. 82 claims were for opioids.
Most prescribed
- Meloxicam52 claims
- Tramadol Hcl39 claims
- Oxycodone Hcl33 claims
- Diclofenac Sodium21 claims
- Ibuprofen13 claims
- Celecoxib11 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.
Industry payments in 2024: $257.91
6 payments; by number, the most common kind was food and beverage; the largest payer was DePuy Synthes Sales Inc. The 7,578 providers of this specialty with any payment received $703.95 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.
Thomas Patrick O'Brien among 516 surgical physician assistant records in Massachusetts
Thomas Patrick O'Brien, PA-C is one of 516 surgical physician assistant records with a practice address in Massachusetts. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 52% of them.
- NPI issued2014 · 52% of these records are older, 43% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 69% of these records are
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Physician Assistant providers in Massachusetts
There are 516 surgical physician assistant records in Massachusetts.
All 516 in Massachusetts → Every provider in Plymouth → Surgical Physician Assistant nationwide →
The 8 surgical physician assistant records with the nearest ZIP codes
- Anthony MirandaPlymouth, MA 023601306662960
- Michaela Pimentel, PA-CPlymouth, MA 023601528544772
- James Bender, PANorth Easton, MA 023561528042363
- Jacqueline Eddy, PA-CNorth Easton, MA 023561972307148
- Jenny Farren, PANorth Easton, MA 023561730311788
- Willy Moy, PA-CNorth Easton, MA 023561558615906
- Ashley Sullivan, PA-CNorth Easton, MA 023561699128298
- Alexis Chen, PA-CBrockton, MA 023021477195089
Common questions
What is Thomas Patrick O'Brien, PA-C's NPI number?
Thomas Patrick O'Brien, PA-C's National Provider Identifier (NPI) is 1225447626, issued on Aug 11, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Patrick O'Brien, PA-C located?
The NPPES record lists a practice address at 23 White St, Plymouth, MA, 02360. Phone: (774) 991-1400. Providers update this record themselves, so call before visiting.
How can I verify Thomas Patrick O'Brien, PA-C's license?
NPPES lists Massachusetts license number PA7872, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Thomas Patrick O'Brien, PA-C prescribe under Medicare Part D?
In 2024, Thomas Patrick O'Brien, PA-C had 201 Medicare Part D claims for 127 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions only.
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.