NPPES file of Aug 9, 2026

Jennifer L. Tam, M.D.

Geriatric Medicine (Internal Medicine) Physician · Hingham, MA

Jennifer L. Tam, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Hingham, Massachusetts, and NPI 1477516516, issued on Apr 10, 2006. Check the license (Massachusetts 154342, 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
1477516516
Name
Jennifer L. Tam
Credential
M.D.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License number
154342 MA
Self-reported in NPPES; status is on the state search
Practice location
300 Linden Ponds Way, Hingham, MA 02043
Phone
(781) 534-7100
Enumerated
Apr 10, 2006
Record last updated
Feb 26, 2026
Fax
(781) 534-7358
Medicaid ID
3192245 MA
Medicare enrollment
Enrolled (PECOS I20060201000569); accepts Medicare assignment
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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8 nearest geriatric medicine (internal medicine) physician records → All 225 in Massachusetts → Look up another NPI →

Also registered at 300 Linden Ponds Way

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

  1. Jennifer Anderson, NPFamily Nurse Practitioner1528114550
  2. Larisa Belisle, RNCSAdult Psychiatric/Mental Health Registered Nurse1033160304
  3. Jacquelyn CuradossiNurse Practitioner1861940645
  4. Sheila Deneus, NPFamily Nurse Practitioner1982486239
  5. Dimitar Dimitrov, M.D.Geriatric Medicine (Internal Medicine) Physician1376798728
  6. Tamara Dunaway, DPTPhysical Therapist1114732120

Verify Jennifer L. Tam 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 154342    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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84% more Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

7,822 Medicare Part D claims for 419 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 90 claims were for opioids.

  1. Jennifer Tam7,822
  2. Specialty average4,246

Most prescribed

  1. Eliquis372 claims
  2. Gabapentin367 claims
  3. Levothyroxine Sodium359 claims
  4. Atorvastatin Calcium314 claims
  5. Metoprolol Succinate300 claims
  6. Mirtazapine238 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. Erickson Health Medical Group OF Massachusetts PCHingham, MA

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

Jennifer L. Tam among 225 geriatric medicine (internal medicine) physician records in Massachusetts

Jennifer L. Tam, M.D. is one of 225 geriatric medicine (internal medicine) physician records with a practice address in Massachusetts. 71% 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 14% of them.

  • NPI issued2006 · 14% of these records are older, 44% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1992 · median 2000 among the 119 with a school on file
  • Record last updated2026 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Massachusetts

There are 225 geriatric medicine (internal medicine) physician records in Massachusetts.

All 225 in Massachusetts → Every provider in Hingham → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. Dimitar Dimitrov, M.D.Hingham, MA 020431376798728
  2. Susan Hardy, MD,PHDHingham, MA 020431124091905
  3. Jennifer Brinckerhoff, M.D.Canton, MA 020211548366990
  4. Jatin Dave, MD, MPHBoston, MA 021111104010958
  5. Sheila Faryman, M.D.Boston, MA 021111043267198
  6. Lin-Yuh Lee, MDBoston, MA 021111386616670
  7. Cinthya Marturano, M.DBoston, MA 021111710961842
  8. Fadi Ramadan, MDBoston, MA 021111801868385

Common questions

What is Jennifer L. Tam, M.D.'s NPI number?

Jennifer L. Tam, M.D.'s National Provider Identifier (NPI) is 1477516516, issued on Apr 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer L. Tam, M.D. located?

The NPPES record lists a practice address at 300 Linden Ponds Way, Hingham, MA, 02043. Phone: (781) 534-7100. Providers update this record themselves, so call before visiting.

How can I verify Jennifer L. Tam, M.D.'s license?

NPPES lists Massachusetts license number 154342, 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 Jennifer L. Tam, M.D. prescribe under Medicare Part D?

In 2024, Jennifer L. Tam, M.D. had 7,822 Medicare Part D claims for 419 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.