NPPES file of Aug 9, 2026

Tan Diem Pham, MD

Internal Medicine Physician · Stoneham, MA

Tan Diem Pham, MD is an internal medicine physician with a practice address in Stoneham, Massachusetts, and NPI 1194715185, issued on Oct 21, 2005. Check the license (Massachusetts 206658, 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
1194715185
Name
Tan Diem Pham
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
206658 MA
Self-reported in NPPES; status is on the state search
Practice location
88 Montvale Avenue, Stoneham, MA 02180
Phone
(781) 481-9255
Enumerated
Oct 21, 2005
Record last updated
Oct 9, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(781) 481-9257
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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Verify Tan Diem Pham 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 206658
    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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100% fewer Medicare Part D claims than the average internal medicine physician in 2024

13 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Tan Pham13
  2. Specialty average3,176

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.

Tan Diem Pham among 6,825 internal medicine physician records in Massachusetts

Tan Diem Pham, MD 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 updated2009 · 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).

12 internal medicine physician records list a practice address in Stoneham

They are 12 of the 473 NPPES records with a practice address in Stoneham, and 6,825 internal medicine physician records in Massachusetts.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Armen Arslanian, M.D.Stoneham, MA 021801932154838
  2. Michael Bader, MDStoneham, MA 021801184689804
  3. Richard Benetti, M.D.Stoneham, MA 021801174752448
  4. Ana Maria Bensaci, M.D.Stoneham, MA 021801427246032
  5. Sudha Bolla, M.D.Stoneham, MA 021801861507915
  6. Clara Cabrera, M.D.Stoneham, MA 021801487851697
  7. Donald Colantino, MDStoneham, MA 021801225008410
  8. Robert Commito, M.D.Stoneham, MA 021801730273822

Common questions

What is Tan Diem Pham, MD's NPI number?

Tan Diem Pham, MD's National Provider Identifier (NPI) is 1194715185, issued on Oct 21, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Tan Diem Pham, MD located?

The NPPES record lists a practice address at 88 Montvale Avenue, Stoneham, MA, 02180. Phone: (781) 481-9255. Providers update this record themselves, so call before visiting.

How can I verify Tan Diem Pham, MD's license?

NPPES lists Massachusetts license number 206658, 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 Tan Diem Pham, MD prescribe under Medicare Part D?

In 2024, Tan Diem Pham, MD had 13 Medicare Part D claims; 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.