Tong Ren, MD
Hospitalist Physician · Boston, MA
Tong Ren, MD is a hospitalist physician with a practice address in Boston, Massachusetts, and NPI 1922758887, issued on Mar 24, 2022. Check the license (Massachusetts PHY104199, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Tong Ren
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- PHY104199 MA
Self-reported in NPPES; status is on the state search - Practice location
- 330 Brookline Ave, Boston, MA 02215
- Phone
- (617) 667-3720
- Enumerated
- Mar 24, 2022
- Record last updated
- Jun 19, 2025
- Medicare enrollment
- Enrolled (PECOS I20250509000603); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 525 in Massachusetts → Look up another NPI →
Also registered at 330 Brookline Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tong Ren in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license PHY104199Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average hospitalist physician in 2024
74 Medicare Part D claims for 50 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
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
- Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tong Ren among 525 hospitalist physician records in Massachusetts
Tong Ren, MD is one of 525 hospitalist physician records with a practice address in Massachusetts. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 91% of them.
- NPI issued2022 · 91% of these records are older, 3% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 86% of these records are
- Graduated2013 · median 2012 among the 449 with a school on file
- Record last updated2025 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in Massachusetts
There are 525 hospitalist physician records in Massachusetts.
All 525 in Massachusetts → Every provider in Boston → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Alexander Carbo, M.D.Boston, MA 022151962504381
- Bulbul Cibei, M.DBoston, MA 022151609129634
- Kirsten Courtade, MDBoston, MA 022151437439023
- David Feinbloom, M.D.Boston, MA 022151407845837
- Henry Feldman, M.D.Boston, MA 022151801874177
- Grace Huang, M.D.Boston, MA 022151134221559
- Lily Huang, M.D.Boston, MA 022151063851640
- Andrew Junkin, MDBoston, MA 022151457614737
Common questions
What is Tong Ren, MD's NPI number?
Tong Ren, MD's National Provider Identifier (NPI) is 1922758887, issued on Mar 24, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Tong Ren, MD located?
The NPPES record lists a practice address at 330 Brookline Ave, Boston, MA, 02215. Phone: (617) 667-3720. Providers update this record themselves, so call before visiting.
How can I verify Tong Ren, MD's license?
NPPES lists Massachusetts license number PHY104199, 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 Tong Ren, MD prescribe under Medicare Part D?
In 2024, Tong Ren, MD had 74 Medicare Part D claims for 50 beneficiaries; the average among hospitalist physician prescribers was 521. 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.