NPPES file of Aug 9, 2026

Elizabeth B. Tarnell, MD

Internal Medicine Physician · Dedham, MA

Elizabeth B. Tarnell, MD is an internal medicine physician with a practice address in Dedham, Massachusetts, and NPI 1942209390, issued on Jul 19, 2005. Check the license (Massachusetts 73363, 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
1942209390
Name
Elizabeth B. Tarnell
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
73363 MA
Self-reported in NPPES; status is on the state search
Practice location
1 Lyons St, Dedham, MA 02026
Phone
(781) 329-1400
Enumerated
Jul 19, 2005
Record last updated
Oct 7, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(781) 326-5760
Medicare enrollment
Enrolled (PECOS I20050408000305); accepts Medicare assignment
Medical or professional school
University Of Connecticut School Of Medicine, 1984
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1 Lyons St

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

  1. Humeira BadshaRheumatology Physician1518964063
  2. Jane Bae, MDCardiovascular Disease Physician1841238318
  3. Sara Bagge, NPFamily Nurse Practitioner1376113928
  4. Connie Barr, M.D.Internal Medicine Physician1740280643
  5. Carolyn Baxter, PTPhysical Therapist1902152275
  6. Barry Benjamin, M.D.Otolaryngology Physician1720085376

Verify Elizabeth B. Tarnell 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 73363
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.8 times the Medicare Part D claims of the average internal medicine physician in 2024

8,902 Medicare Part D claims for 563 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 26 claims were for opioids.

  1. Elizabeth Tarnell8,902
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium633 claims
  2. Amlodipine Besylate454 claims
  3. Alendronate Sodium385 claims
  4. Losartan Potassium382 claims
  5. Lisinopril355 claims
  6. Famotidine299 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

  1. Atrius Health IncDedham, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

24 internal medicine physician records list a practice address in Dedham

They are 24 of the 876 NPPES records with a practice address in Dedham, and 6,825 internal medicine physician records in Massachusetts.

Other internal medicine physician records in Massachusetts

  1. Nawal Aamir, MDWorcester, MA1588248926
  2. Nathan Abare, MDSpringfield, MA1386852747
  3. Nooshin Abbasi, MD MPHNewton, MA1831888353
  4. Taimur AbbasiBoston, MA1841673522
  5. Lauren Abbate, MDBoston, MA1922099621
  6. Bassima Abdallah, MDBoston, MA1912327305
  7. Maya Abdallah, MDBoston, MA1861854937
  8. Samah Abdallah, MDBrighton, MA1730814971
  9. Omar Abdel-Wahab, M.D.Boston, MA1023042777
  10. Mohab AbdelhalimBoston, MA1871388496

Common questions

What is Elizabeth B. Tarnell, MD's NPI number?

Elizabeth B. Tarnell, MD's National Provider Identifier (NPI) is 1942209390, issued on Jul 19, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth B. Tarnell, MD located?

The NPPES record lists a practice address at 1 Lyons St, Dedham, MA, 02026. Phone: (781) 329-1400. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth B. Tarnell, MD's license?

NPPES lists Massachusetts license number 73363, 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 Elizabeth B. Tarnell, MD prescribe under Medicare Part D?

In 2024, Elizabeth B. Tarnell, MD had 8,902 Medicare Part D claims for 563 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.