NPPES file of Aug 9, 2026

Mary Katherine Sheffield, M.D.

Internal Medicine Physician · Adams, MA

Mary Katherine Sheffield, M.D. is an internal medicine physician with a practice address in Adams, Massachusetts, and NPI 1437173465, issued on Jul 26, 2006. Check the license (Massachusetts 73013, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1437173465
Name
Mary Katherine Sheffield
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
73013 MA
11393 NH
042-0012060 VT
Self-reported in NPPES; status is on the state search
Practice location
71 Hospital Avenue, Adams, MA 01247
Phone
(413) 664-4088
Enumerated
Jul 26, 2006
Record last updated
Jul 21, 2022
Fax
(413) 663-6405
Medicaid IDs
110048494A MA
3075426 NH
1008181 VT
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 71 Hospital Avenue

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Donna Tew, ARNPNurse Practitioner1568420230

Verify Mary Katherine Sheffield in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 73013
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

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98% fewer Medicare Part D claims than the average internal medicine physician in 2024

50 Medicare Part D claims for 17 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Mary Sheffield50
  2. Specialty average3,176

Most prescribed

  1. Amlodipine Besylate15 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.

Mary Katherine Sheffield among 6,825 internal medicine physician records in Massachusetts

Mary Katherine Sheffield, M.D. 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 fileNo · 60% of these records are
  • 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).

6 internal medicine physician records list a practice address in Adams

They are 6 of the 85 NPPES records with a practice address in Adams, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Steven Cherry, DONorth Adams, MA 012471841393923
  2. Kristin Lamontagne, MDNorth Adams, MA 012471174635965
  3. Douglas Oneill, MDNorth Adams, MA 012471003893082
  4. Shaohua Tang, M.D.North Adams, MA 012471225029275
  5. Sarah Turner, D.O.North Adams, MA 012471164838710
  6. Michael Wilson, M.D.North Adams, MA 012471811974876
  7. Nada Esa, MDLenox, MA 012401558713065
  8. Cynthia Geyer, M.D.Lenox, MA 012401235144528

Common questions

What is Mary Katherine Sheffield, M.D.'s NPI number?

Mary Katherine Sheffield, M.D.'s National Provider Identifier (NPI) is 1437173465, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mary Katherine Sheffield, M.D. located?

The NPPES record lists a practice address at 71 Hospital Avenue, Adams, MA, 01247. Phone: (413) 664-4088. Providers update this record themselves, so call before visiting.

How can I verify Mary Katherine Sheffield, M.D.'s license?

NPPES lists Massachusetts license number 73013, 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 Mary Katherine Sheffield, M.D. prescribe under Medicare Part D?

In 2024, Mary Katherine Sheffield, M.D. had 50 Medicare Part D claims for 17 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.