Mary R. Hawthorne, M.D.
Internal Medicine Physician · Worcester, MA
Mary R. Hawthorne, M.D. is an internal medicine physician with a practice address in Worcester, Massachusetts, and NPI 1013990787, issued on Nov 27, 2005. Check the license (Massachusetts 51975, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mary R. Hawthorne
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 51975 MA
Self-reported in NPPES; status is on the state search - Practice location
- 291 Lincoln St, Worcester, MA 01605
- Phone
- (508) 791-8524
- Enumerated
- Nov 27, 2005
- Record last updated
- Dec 9, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (508) 754-6771
- Medicaid ID
- 6175163 MA
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 291 Lincoln St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Hawa Abu, MDGeriatric Medicine (Internal Medicine) Physician1104441229
- Linsey BarkerGeriatric Medicine (Internal Medicine) Physician1356847974
- Jessica Boatman Dray, M.D.Geriatric Medicine (Family Medicine) Physician1528487857
- Alexis Brenya, MDPediatrics Physician1548962400
- Tracy Cormier, NPNurse Practitioner1083829014
- Ronald Cruz, MDInternal Medicine Physician1710962154
Verify Mary R. Hawthorne in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 51975Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,868 Medicare Part D claims for 559 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium267 claims
- Lisinopril175 claims
- Amlodipine Besylate133 claims
- Levothyroxine Sodium132 claims
- Losartan Potassium115 claims
- Omeprazole102 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 R. Hawthorne among 6,825 internal medicine physician records in Massachusetts
Mary R. Hawthorne, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 88% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2020 · 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).
448 internal medicine physician records list a practice address in Worcester
They are 448 of the 13,166 NPPES records with a practice address in Worcester, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Worcester → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Maria Casal, M.D.Worcester, MA 016051609859503
- Paula Cullinane, M.D.Worcester, MA 016051952384950
- Michael Galica, M.D.Worcester, MA 016051972586733
- Maria Garcia, M.D.Worcester, MA 016051396726220
- Gayatridevi Ika, M.D.Worcester, MA 016051124001102
- Jayanthi Kumar, M.D.Worcester, MA 016051528041423
- Christine Macginnis, D.O.Worcester, MA 016051952382772
- Shari Marscheider, M.D.Worcester, MA 016051487636262
Common questions
What is Mary R. Hawthorne, M.D.'s NPI number?
Mary R. Hawthorne, M.D.'s National Provider Identifier (NPI) is 1013990787, issued on Nov 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mary R. Hawthorne, M.D. located?
The NPPES record lists a practice address at 291 Lincoln St, Worcester, MA, 01605. Phone: (508) 791-8524. Providers update this record themselves, so call before visiting.
How can I verify Mary R. Hawthorne, M.D.'s license?
NPPES lists Massachusetts license number 51975, 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 R. Hawthorne, M.D. prescribe under Medicare Part D?
In 2024, Mary R. Hawthorne, M.D. had 2,868 Medicare Part D claims for 559 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.