Kathryn Hay, MD
Urology Physician · Boston, MA
Kathryn Hay, MD is a urology physician with a practice address in Boston, Massachusetts, and NPI 1669173605, issued on Mar 16, 2023. Check the license (Massachusetts 3015855, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Kathryn Hay
- Credential
- MD
- Primary taxonomy
- Urology Physician 208800000X
- License number
- 3015855 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit St, Boston, MA 02114
- Phone
- (857) 238-3838
- Enumerated
- Mar 16, 2023
- Record last updated
- May 6, 2024
- Entity
- Type 1 · individual
Also registered at 55 Fruit St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Moustafa AbdallaStudent in an Organized Health Care Education/Training Program1952046062
- Shadi Abdar Esfahani, MD, MPHDiagnostic Radiology Physician1497137590
Verify Kathryn Hay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 3015855Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average urology physician in 2024
27 Medicare Part D claims for 16 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D.
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.
Urology Physician providers in Massachusetts
There are 377 urology physician records in Massachusetts.
Other urology physician records in Massachusetts
- Joseph Adolph, MDMarlboro, MA1700883535
- Abdulsalam Albalawi, MDChestnut Hill, MA1487087375
- Mehrdad AlemozaffarBoston, MA1376749861
- Richard Alexander, M.D.Greenfield, MA1497762884
- Farshid Alizadeh, MDBrighton, MA1619608577
- Christopher Allard, MDBoston, MA1629486022
- Richard Altman, MDChelmsford, MA1134199748
- Joshua Altschuler, MDWorcester, MA1003471962
- Kevin Asher, MDSpringfield, MA1578733457
- Philip Ayvazian, MDWorcester, MA1487654984
Common questions
What is Kathryn Hay, MD's NPI number?
Kathryn Hay, MD's National Provider Identifier (NPI) is 1669173605, issued on Mar 16, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Hay, MD located?
The NPPES record lists a practice address at 55 Fruit St, Boston, MA, 02114. Phone: (857) 238-3838. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Hay, MD's license?
NPPES lists Massachusetts license number 3015855, 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 Kathryn Hay, MD prescribe under Medicare Part D?
In 2024, Kathryn Hay, MD had 27 Medicare Part D claims for 16 beneficiaries; the average among urology physician prescribers was 1,340. 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.