NPPES file of Aug 9, 2026

Elizabeth Tam, M.D.

Hospitalist Physician · Hackensack, NJ

Elizabeth Tam, M.D. is a hospitalist physician with a practice address in Hackensack, New Jersey, and NPI 1295121853, issued on Apr 10, 2015. Check the license (New Jersey 25MA10339900, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1295121853
Name
Elizabeth Tam
Credential
M.D.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
25MA10339900 NJ
Self-reported in NPPES; status is on the state search
Practice location
30 Prospect Ave, Hackensack, NJ 07601
Phone
(551) 996-2000
Enumerated
Apr 10, 2015
Record last updated
Jul 12, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180918003855); accepts Medicare assignment
Medical or professional school
State University Of New York Downstate Medical Center, 2015
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 30 Prospect Ave

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

  1. Gloria Abbey, MDStudent in an Organized Health Care Education/Training Program1184374647
  2. James AbbottStudent in an Organized Health Care Education/Training Program1568307957
  3. Mohammad Abboud, MDEmergency Medicine Physician1881187359
  4. Adham Abdelhameed, MDStudent in an Organized Health Care Education/Training Program1891599775
  5. Ahmad Abid, MDStudent in an Organized Health Care Education/Training Program1982406294
  6. Ashley AbrahamDentist1740975135

Verify Elizabeth Tam 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 25MA10339900
    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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40% fewer Medicare Part D claims than the average hospitalist physician in 2024

311 Medicare Part D claims for 117 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 24 claims were for opioids.

  1. Elizabeth Tam311
  2. Specialty average521

Most prescribed

  1. Pantoprazole Sodium15 claims
  2. Metoprolol Tartrate12 claims
  3. Oxycodone Hcl11 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 75.8 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score68.7
  2. Costout of 100 · 30%50.7
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Hackensack Meridian Health Medical Group - Specialty Care PCHackensack, NJ

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

Elizabeth Tam among 644 hospitalist physician records in New Jersey

Elizabeth Tam, M.D. is one of 644 hospitalist physician records with a practice address in New Jersey. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 50% of them.

  • NPI issued2015 · 50% of these records are older, 47% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 88% of these records are
  • Graduated2015 · median 2013 among the 565 with a school on file
  • Record last updated2018 · 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 New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

34 hospitalist physician records list a practice address in Hackensack

They are 34 of the 2,908 NPPES records with a practice address in Hackensack, and 644 hospitalist physician records in New Jersey.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Chithra Balasingham, MDHackensack, NJ 076011457307878
  2. Alan Chu, M.D.Hackensack, NJ 076011205178605
  3. Daniel D'Alessandro, MDHackensack, NJ 076011740237296
  4. Gazala Darvesh, M.D.Hackensack, NJ 076011922109149
  5. George Katzenbach, MDHackensack, NJ 076011225085400
  6. Gurpreet Kaur, M.D.Hackensack, NJ 076011952429458
  7. Angela MehtaHackensack, NJ 076011073887501
  8. Madhu Parmar, MDHackensack, NJ 076011417975194

Common questions

What is Elizabeth Tam, M.D.'s NPI number?

Elizabeth Tam, M.D.'s National Provider Identifier (NPI) is 1295121853, issued on Apr 10, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Tam, M.D. located?

The NPPES record lists a practice address at 30 Prospect Ave, Hackensack, NJ, 07601. Phone: (551) 996-2000. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Tam, M.D.'s license?

NPPES lists New Jersey license number 25MA10339900, 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 Elizabeth Tam, M.D. prescribe under Medicare Part D?

In 2024, Elizabeth Tam, M.D. had 311 Medicare Part D claims for 117 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.

What is Elizabeth Tam, M.D.'s MIPS final score?

The 2023 MIPS final score is 75.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.