Registry data as of Aug 27, 2026

Diana Tzeng, M.D.

Neurology Physician · Philadelphia, PA

Diana Tzeng, M.D. is a neurology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1821288408, issued on Jul 30, 2007. Check the license (Pennsylvania MD432641, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1821288408
Name
Diana Tzeng
Credential
M.D.
Primary taxonomy
Neurology Physician 2084N0400X
License number
MD432641 PA
Self-reported in NPPES; status is on the state search
Practice location
900 Walnut St FL 2, Philadelphia, PA 19107
Phone
(215) 955-7000
Enumerated
Jul 30, 2007
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 900 Walnut St FL 2

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

  1. Marinos Dalakas, MDNeurology Physician1275739906
  2. Silva Markovic-Plese, MDNeurology Physician1255403747
  3. Dhanashri Miskin, M.D.Neurology Physician1174848071

Verify Diana Tzeng in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD432641
    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 Pennsylvania 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.

88% fewer Medicare Part D claims than the average neurology physician in 2024

167 Medicare Part D claims for 63 beneficiaries, against an average of 1,356 among the 13,714 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Diana Tzeng167
  2. Specialty average1,356

Most prescribed

  1. Levetiracetam32 claims
  2. Clopidogrel23 claims
  3. Eliquis23 claims
  4. Atorvastatin Calcium21 claims
  5. Gabapentin20 claims
  6. Brilinta11 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: $6,529.80

11 payments, mostly food and beverage; the largest payer was Abbott Laboratories. The 9,995 providers of this specialty with any payment received $8,603.82 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diana Tzeng$6,529.80
  2. Specialty average$8,603.82

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital or facility affiliation

  1. Jefferson University PhysiciansPhiladelphia, PA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Neurology Physician providers in Pennsylvania

There are 999 neurology physician records in Pennsylvania.

Other neurology physician records in Pennsylvania

  1. Whitley Aamodt, M.D.Philadelphia, PA1598152944
  2. Brian Abaluck, MDMalvern, PA1952428070
  3. Rania Abou Elenein, MDHuntingdon Valley, PA1114156866
  4. Frederick Abraham, DOWest Reading, PA1851968382
  5. Mary AbramczukDanville, PA1861074163
  6. Daniel Ackerman, M.D.Bethlehem, PA1154642338
  7. Cathleen Adams, D.O.Hershey, PA1124253851
  8. Akintunde Adebowale, MDHershey, PA1053158204
  9. Philip Adelman, MDPaoli, PA1376594630
  10. Kayode Adunbarin, MDPhiladelphia, PA1508903212

Common questions

What is Diana Tzeng, M.D.'s NPI number?

Diana Tzeng, M.D.'s National Provider Identifier (NPI) is 1821288408, issued on Jul 30, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Diana Tzeng, M.D. located?

The NPPES record lists a practice address at 900 Walnut St FL 2, Philadelphia, PA, 19107. Phone: (215) 955-7000. Providers update this record themselves, so call before visiting.

How can I verify Diana Tzeng, M.D.'s license?

NPPES lists Pennsylvania license number MD432641, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Diana Tzeng, M.D. prescribe under Medicare Part D?

In 2024, Diana Tzeng, M.D. had 167 Medicare Part D claims for 63 beneficiaries; the average among neurology physician prescribers was 1,356. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.