William E. Shay, MD
Internal Medicine Physician · Provincetown, MA
William E. Shay, MD is an internal medicine physician with a practice address in Provincetown, Massachusetts, and NPI 1033198627, issued on Jan 11, 2006. Check the license (Massachusetts 202858, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- William E. Shay
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 202858 MA
151526 NY
Self-reported in NPPES; status is on the state search - Practice location
- 49 Harry Kemp Way, Provincetown, MA 02657
- Phone
- (508) 487-9395
- Enumerated
- Jan 11, 2006
- Record last updated
- Jul 8, 2026
- Fax
- (508) 487-6298
- Medicaid IDs
- 110091651A MA
00980667 NY - Medicare enrollment
- Enrolled (PECOS I20070306000615); accepts Medicare assignment
- Medical or professional school
- Albany Medical College Of Union University, 1981
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 49 Harry Kemp Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Abar, PAMedical Physician Assistant1760647812
- Krishtina Adhikari, NPRegistered Nurse1679134902
- Linda Arectos, MSAudiologist1144375072
- Jodi Belson, CNMObstetrics & Gynecology Physician1912974973
- Alexandra Boyle, MSN, FNP-BCFamily Nurse Practitioner1437494283
- Christy Braga De Lima, NURSE PRACTITIONERPsychiatric/Mental Health Nurse Practitioner1649988973
Verify William E. Shay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 202858Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.8 times the Medicare Part D claims of the average internal medicine physician in 2024
12,151 Medicare Part D claims for 866 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 284 claims were for opioids.
Most prescribed
- Atorvastatin Calcium702 claims
- Biktarvy413 claims
- Lisinopril372 claims
- Valsartan322 claims
- Rosuvastatin Calcium319 claims
- Omeprazole312 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.
Bills Medicare through one group practice
- Outer Cape Health Services IncWellfleet, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William E. Shay among 6,825 internal medicine physician records in Massachusetts
William E. Shay, 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1981 · median 2004 among the 4,103 with a school on file
- Record last updated2026 · 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).
6 internal medicine physician records list a practice address in Provincetown
They are 6 of the 76 NPPES records with a practice address in Provincetown, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Provincetown → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Pamela French,, MDProvincetown, MA 026571134721392
- Andrew Jorgensen, M.D.Provincetown, MA 026571134106271
- Donna Krauth, M.D.Provincetown, MA 026571548286321
- Brian O'Malley, M.D.Provincetown, MA 026571083653646
- Janet Whelan, M.D.Provincetown, MA 026571770685190
- Mark Collins, MDOsterville, MA 026551255368494
- Paul Jaques, M.D.Osterville, MA 026551750365227
- Catherine Mullin, FNPOsterville, MA 026551952986721
Common questions
What is William E. Shay, MD's NPI number?
William E. Shay, MD's National Provider Identifier (NPI) is 1033198627, issued on Jan 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William E. Shay, MD located?
The NPPES record lists a practice address at 49 Harry Kemp Way, Provincetown, MA, 02657. Phone: (508) 487-9395. Providers update this record themselves, so call before visiting.
How can I verify William E. Shay, MD's license?
NPPES lists Massachusetts license number 202858, 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 William E. Shay, MD prescribe under Medicare Part D?
In 2024, William E. Shay, MD had 12,151 Medicare Part D claims for 866 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.