Ya Tze Tong, M.D.
Internal Medicine Physician · Concord, MA
Ya Tze Tong, M.D. is an internal medicine physician with a practice address in Concord, Massachusetts, and NPI 1245298157, issued on May 2, 2006. Check the license (Massachusetts 77476, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ya Tze Tong
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 77476 MA
Self-reported in NPPES; status is on the state search - Practice location
- 86 Baker Avenue Ext, Concord, MA 01742
- Phone
- (978) 287-9310
- Enumerated
- May 2, 2006
- Record last updated
- Jun 27, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (978) 287-9357
- Medicaid ID
- 3123766 MA
- Medicare enrollment
- Enrolled (PECOS I20100727000820); accepts Medicare assignment
- 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 86 Baker Avenue Ext
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tiffany Angeloni, RDOOptician1699110924
- Caitlin Barba, LCSWSocial Worker1306689310
- Jean Barry, M.D.Internal Medicine Physician1396763801
- Murray Baumal, O.D.Optometrist1073640983
- Sara Belmont, LCSWSocial Worker1104353382
- Sarah Compton, LCSWClinical Social Worker1073064424
Verify Ya Tze Tong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 77476Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,292 Medicare Part D claims for 190 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Levothyroxine Sodium158 claims
- Atorvastatin Calcium153 claims
- Amlodipine Besylate108 claims
- Lisinopril67 claims
- Rosuvastatin Calcium43 claims
- Trazodone Hcl36 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: $138.73
7 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 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
- Emerson Practice Associates, IncConcord, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ya Tze Tong among 6,825 internal medicine physician records in Massachusetts
Ya Tze Tong, M.D. 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 2006, is newer than 12% of them.
- NPI issued2006 · 12% of these records are older, 54% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1981 · median 2004 among the 4,103 with a school on file
- Record last updated2011 · 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).
44 internal medicine physician records list a practice address in Concord
They are 44 of the 1,078 NPPES records with a practice address in Concord, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Concord → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Paul D'Ambrosio, M.D.Concord, MA 017421033194048
- David Eldridge, MDConcord, MA 017421386622967
- Eric Hatton, MDConcord, MA 017421841287281
- Peter Hoenig, M.DConcord, MA 017421801855531
- Sandeep Jain, M.D.Concord, MA 017421417915562
- Thomas Kaegi, M.D.Concord, MA 017421578552121
- Barbara Peters, D.O.Concord, MA 017421609834563
- Betty Pomerleau, M.D.Concord, MA 017421811972821
Common questions
What is Ya Tze Tong, M.D.'s NPI number?
Ya Tze Tong, M.D.'s National Provider Identifier (NPI) is 1245298157, issued on May 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ya Tze Tong, M.D. located?
The NPPES record lists a practice address at 86 Baker Avenue Ext, Concord, MA, 01742. Phone: (978) 287-9310. Providers update this record themselves, so call before visiting.
How can I verify Ya Tze Tong, M.D.'s license?
NPPES lists Massachusetts license number 77476, 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 Ya Tze Tong, M.D. prescribe under Medicare Part D?
In 2024, Ya Tze Tong, M.D. had 1,292 Medicare Part D claims for 190 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.