NPPES file of Aug 9, 2026

Tiffany Tsang, M.D.

Endocrinology, Diabetes & Metabolism Physician · Newark, NJ

Tiffany Tsang, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Newark, New Jersey, and NPI 1164868535, issued on May 13, 2013. Check the license (New Jersey 25MA10554300, as entered in NPPES) on the New Jersey State Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164868535
Name
Tiffany Tsang
Credential
M.D.
Primary taxonomy
Endocrinology, Diabetes & Metabolism Physician 207RE0101X
License numbers
25MA10554300 NJ
0101264798 VA
Self-reported in NPPES; status is on the state search
Practice location
185 S Orange Ave, Newark, NJ 07103
Phone
(973) 972-6000
Enumerated
May 13, 2013
Record last updated
Jun 3, 2025
Medicare enrollment
Enrolled (PECOS I20210505000329); accepts Medicare assignment
Medical or professional school
Texas Tech University Health Science Center School Of Medicine, 2013
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 185 S Orange Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Stephanie Adjei, MDStudent in an Organized Health Care Education/Training Program1881483568
  2. Maliha Ahmad, MDHepatology Physician1902067952
  3. Gregory Alfieri, DOStudent in an Organized Health Care Education/Training Program1265373716
  4. Mohsin Ali, MDInternal Medicine Physician1225658412
  5. Saad Ali, MDAnesthesiology Physician1982283453
  6. Simona AlomaryStudent in an Organized Health Care Education/Training Program1811846876

Verify Tiffany Tsang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNew Jersey State Board of Medical Examiners
    Search for license 25MA10554300
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New Jersey license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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1% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024

2,599 Medicare Part D claims for 431 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.

  1. Tiffany Tsang2,599
  2. Specialty average2,630

Most prescribed

  1. Levothyroxine Sodium297 claims
  2. Metformin Hcl Er194 claims
  3. Ozempic128 claims
  4. Mounjaro126 claims
  5. Jardiance122 claims
  6. Synthroid121 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: $359.85

10 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Tiffany Tsang$359.85
  2. Specialty average$5,742.15

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

  1. Advocare, LLCHaddonfield, NJ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Tiffany Tsang among 417 endocrinology, diabetes & metabolism physician records in New Jersey

Tiffany Tsang, M.D. is one of 417 endocrinology, diabetes & metabolism physician records with a practice address in New Jersey. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 72% of them.

  • NPI issued2013 · 72% of these records are older, 25% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2013 · median 2006 among the 313 with a school on file
  • Record last updated2025 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Endocrinology, Diabetes & Metabolism Physician providers in New Jersey

There are 417 endocrinology, diabetes & metabolism physician records in New Jersey.

The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes

  1. David Bleich, M.D.Newark, NJ 071031790719193
  2. Lissette Cespedes, M.D.Newark, NJ 071031003238817
  3. Marvin Kirschner, M.D.Newark, NJ 071031386784551
  4. Cyerwin Monique Malvar, MDNewark, NJ 071031568923506
  5. Maya Raghuwanshi, MD, MPHNewark, NJ 071031235216557
  6. Nicholas Baranetsky, MDNewark, NJ 071021093808164
  7. Monica Girotra, M.D.Newark, NJ 071071407933948
  8. Herneet Sahani, MDNewark, NJ 071071063672376

Common questions

What is Tiffany Tsang, M.D.'s NPI number?

Tiffany Tsang, M.D.'s National Provider Identifier (NPI) is 1164868535, issued on May 13, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Tiffany Tsang, M.D. located?

The NPPES record lists a practice address at 185 S Orange Ave, Newark, NJ, 07103. Phone: (973) 972-6000. Providers update this record themselves, so call before visiting.

How can I verify Tiffany Tsang, M.D.'s license?

NPPES lists New Jersey license number 25MA10554300, 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 Tiffany Tsang, M.D. prescribe under Medicare Part D?

In 2024, Tiffany Tsang, M.D. had 2,599 Medicare Part D claims for 431 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.