Tung Phan, MD
Internal Medicine Physician · Worcester, MA
Tung Phan, MD is an internal medicine physician with a practice address in Worcester, Massachusetts, and NPI 1699271429, issued on Apr 2, 2018. Check the license (Massachusetts 1014416, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Tung Phan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 1014416 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Lake Ave N, Worcester, MA 01655
- Phone
- (508) 334-2731
- Enumerated
- Apr 2, 2018
- Record last updated
- Jul 18, 2023
- Medicare enrollment
- Enrolled (PECOS I20230802000416); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 55 Lake Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tung Phan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 1014416Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,041 Medicare Part D claims for 109 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Quetiapine Fumarate84 claims
- Trazodone Hcl82 claims
- Fluoxetine Hcl45 claims
- Mirtazapine43 claims
- Bupropion Xl41 claims
- Olanzapine40 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 2 group practices
- Community Healthlink IncWorcester, MA
- Umass Memorial Medical Group IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tung Phan among 6,825 internal medicine physician records in Massachusetts
Tung Phan, 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 2018, is newer than 82% of them.
- NPI issued2018 · 82% of these records are older, 16% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2018 · median 2004 among the 4,103 with a school on file
- Record last updated2023 · 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
- Abigail Adams, M.D.Worcester, MA 016551497745806
- Eric Alper, M.D.Worcester, MA 016551275524340
- Nidhi Chojar, M.D.Worcester, MA 016551023009636
- Kimberly Eisenstock, M.D.Worcester, MA 016551194706069
- George Eypper, M.D.Worcester, MA 016551104817451
- Melissa Fischer, M.D.Worcester, MA 016551306837653
- Ish Gupta, D.O.Worcester, MA 016551598747834
- Andrew Karson, MDWorcester, MA 016551194706002
Common questions
What is Tung Phan, MD's NPI number?
Tung Phan, MD's National Provider Identifier (NPI) is 1699271429, issued on Apr 2, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Tung Phan, MD located?
The NPPES record lists a practice address at 55 Lake Ave N, Worcester, MA, 01655. Phone: (508) 334-2731. Providers update this record themselves, so call before visiting.
How can I verify Tung Phan, MD's license?
NPPES lists Massachusetts license number 1014416, 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 Tung Phan, MD prescribe under Medicare Part D?
In 2024, Tung Phan, MD had 1,041 Medicare Part D claims for 109 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.