Grace N. Tseng, M.D.
Internal Medicine Physician · Trenton, NJ
Grace N. Tseng, M.D. is an internal medicine physician with a practice address in Trenton, New Jersey, and NPI 1457778896, issued on Mar 24, 2014. Check the license (New Jersey 25MA09765500, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Grace N. Tseng
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 25MA09765500 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 601 Hamilton Ave RM B-158, Trenton, NJ 08629
- Phone
- (609) 599-5061
- Enumerated
- Mar 24, 2014
- Record last updated
- Apr 3, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (609) 599-6232
- Medicare enrollment
- Enrolled (PECOS I20151103000135); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 4,632 in New Jersey → Look up another NPI →
Also registered at 601 Hamilton Ave RM B-158
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Areig Awad, MD, M.B.B.S.Student in an Organized Health Care Education/Training Program1205297397
Verify Grace N. Tseng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
Search for license 25MA09765500Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% fewer Medicare Part D claims than the average internal medicine physician in 2024
564 Medicare Part D claims for 148 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium35 claims
- Lisinopril24 claims
- Albuterol Sulfate Hfa19 claims
- Levothyroxine Sodium19 claims
- Metformin Hcl17 claims
- Ozempic17 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 one group practice
- State OF New Jersey Omb Centralized PayrollClinton, NJ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grace N. Tseng among 4,632 internal medicine physician records in New Jersey
Grace N. Tseng, M.D. is one of 4,632 internal medicine physician records with a practice address in New Jersey. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2009 · median 2000 among the 3,132 with a school on file
- Record last updated2017 · 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 207R00000X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
96 internal medicine physician records list a practice address in Trenton
They are 96 of the 1,480 NPPES records with a practice address in Trenton, and 4,632 internal medicine physician records in New Jersey.
All 4,632 in New Jersey → Every provider in Trenton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Robert Colella, DOTrenton, NJ 086291073574869
- Isaak Halegoua, MDTrenton, NJ 086291124076393
- Syed Hasan, D.O.Trenton, NJ 086291700402898
- Sheema Jalil, M.D.Trenton, NJ 086291336399963
- Sneha Kola, MDTrenton, NJ 086291538711692
- Nahid Memon, MDTrenton, NJ 086291962427922
- Julie Pantelick, D.O.Trenton, NJ 086291033303458
- Gopi Rana Mukkavilli, MDTrenton, NJ 086291962551242
Common questions
What is Grace N. Tseng, M.D.'s NPI number?
Grace N. Tseng, M.D.'s National Provider Identifier (NPI) is 1457778896, issued on Mar 24, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Grace N. Tseng, M.D. located?
The NPPES record lists a practice address at 601 Hamilton Ave RM B-158, Trenton, NJ, 08629. Phone: (609) 599-5061. Providers update this record themselves, so call before visiting.
How can I verify Grace N. Tseng, M.D.'s license?
NPPES lists New Jersey license number 25MA09765500, as entered by the provider. Search the New Jersey State Board of Medical Examiners at https://newjersey.mylicense.com/verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Grace N. Tseng, M.D. prescribe under Medicare Part D?
In 2024, Grace N. Tseng, M.D. had 564 Medicare Part D claims for 148 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.