Charles T. Pu, MD
Geriatric Medicine (Internal Medicine) Physician · Boston, MA
Charles T. Pu, MD is a geriatric medicine (internal medicine) physician with a practice address in Boston, Massachusetts, and NPI 1508856691, issued on Oct 28, 2005. Check the license (Massachusetts 73771, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Charles T. Pu
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 73771 MA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Charles River Plaza, Boston, MA 02114
- Phone
- (617) 726-2066
- Enumerated
- Oct 28, 2005
- Record last updated
- Jul 19, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (617) 228-6306
- Medicaid ID
- 3099466 MA
- Medicare enrollment
- Enrolled (PECOS I20040504000985); accepts Medicare assignment
- Medical or professional school
- Rutgers New Jersey Medical School, 1989
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 225 in Massachusetts → Look up another NPI →
Also registered at 100 Charles River Plaza
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Leslie Burton, NPNurse Practitioner1548328628
- Udo Hoffmann, MDDiagnostic Radiology Physician1538133608
- Lisa O'Connor, N.P.Adult Health Nurse Practitioner1104974286
- Spencer Wilking, MDInternal Medicine Physician1205818358
Verify Charles T. Pu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 73771Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
45 Medicare Part D claims for 11 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Memantine Hcl22 claims
- Olanzapine11 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.
Industry payments in 2024: $38.00
1 payment: food and beverage; the largest payer was Steris Corporation. The 1,004 providers of this specialty with any payment received $1,720.82 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Massachusetts General Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles T. Pu among 225 geriatric medicine (internal medicine) physician records in Massachusetts
Charles T. Pu, MD 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1989 · median 2000 among the 119 with a school on file
- Record last updated2012 · 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 Boston → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Warren Backman, MBBSBoston, MA 021141174910574
- Elizabeth Castillo, MD PHDBoston, MA 021141932176443
- Sevdenur Cizginer Konuk, MD, MPHBoston, MA 021141881906725
- Kent Creamer, MDBoston, MA 021141730136508
- Ana Cecilia Cury, M.D.Boston, MA 021141437290210
- Esteban Franco Garcia, M.DBoston, MA 021141861712648
- Kathryn Hanley, M.D.Boston, MA 021141396079307
- Ardeshir Hashmi, M.D.Boston, MA 021141619143492
Common questions
What is Charles T. Pu, MD's NPI number?
Charles T. Pu, MD's National Provider Identifier (NPI) is 1508856691, issued on Oct 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Charles T. Pu, MD located?
The NPPES record lists a practice address at 100 Charles River Plaza, Boston, MA, 02114. Phone: (617) 726-2066. Providers update this record themselves, so call before visiting.
How can I verify Charles T. Pu, MD's license?
NPPES lists Massachusetts license number 73771, 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 Charles T. Pu, MD prescribe under Medicare Part D?
In 2024, Charles T. Pu, MD had 45 Medicare Part D claims for 11 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.
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.