Sarah M. O'Shea, MD
Internal Medicine Physician · Westfield, MA
Sarah M. O'Shea, MD is an internal medicine physician with a practice address in Westfield, Massachusetts, and NPI 1912269622, issued on Jun 10, 2012. Check the license (Massachusetts 263638, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Sarah M. O'Shea
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 263638 MA
Self-reported in NPPES; status is on the state search - Practice location
- 57 Union St, Westfield, MA 01085
- Phone
- (413) 572-6050
- Enumerated
- Jun 10, 2012
- Record last updated
- Jan 31, 2022
- Fax
- (413) 568-1097
- Medicare enrollment
- Enrolled (PECOS I20151029000141); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 57 Union St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Sarah M. O'Shea in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 263638Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% more Medicare Part D claims than the average internal medicine physician in 2024
6,166 Medicare Part D claims for 678 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 274 claims were for opioids.
Most prescribed
- Atorvastatin Calcium331 claims
- Levothyroxine Sodium238 claims
- Amlodipine Besylate227 claims
- Lisinopril222 claims
- Omeprazole184 claims
- Losartan Potassium166 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: $82.93
1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 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 2 group practices
- Holyoke Medical Center IncHolyoke, MA
- Western Mass Physician Associates IncWestfield, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sarah M. O'Shea among 6,825 internal medicine physician records in Massachusetts
Sarah M. O'Shea, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 67% of them.
- NPI issued2012 · 67% of these records are older, 30% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2011 · median 2004 among the 4,103 with a school on file
- Record last updated2022 · 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 207R00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 internal medicine physician records list a practice address in Westfield
They are 23 of the 910 NPPES records with a practice address in Westfield, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Westfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Michelle Barnett, MDWestfield, MA 010851538127048
- Bashir Bashiruddin, MDWestfield, MA 010851578513222
- Roger Beneitone, MDWestfield, MA 010851760452635
- Laura Gioiella, MDWestfield, MA 010851609864933
- Joshua Kalter, M.D.Westfield, MA 010851669534921
- Gurpal Kingra, MDWestfield, MA 010851538199880
- Charlotte Miller, M.D.Westfield, MA 010851346272861
- Thomas Percy, MDWestfield, MA 010851699709352
Common questions
What is Sarah M. O'Shea, MD's NPI number?
Sarah M. O'Shea, MD's National Provider Identifier (NPI) is 1912269622, issued on Jun 10, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Sarah M. O'Shea, MD located?
The NPPES record lists a practice address at 57 Union St, Westfield, MA, 01085. Phone: (413) 572-6050. Providers update this record themselves, so call before visiting.
How can I verify Sarah M. O'Shea, MD's license?
NPPES lists Massachusetts license number 263638, 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 Sarah M. O'Shea, MD prescribe under Medicare Part D?
In 2024, Sarah M. O'Shea, MD had 6,166 Medicare Part D claims for 678 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.