NPPES file of Aug 9, 2026

Tzu Chiang Wang, MD

Internal Medicine Physician · Escondido, CA

Tzu Chiang Wang, MD is an internal medicine physician with a practice address in Escondido, California, and NPI 1912932187, issued on Jul 12, 2006. Check the license (California C182356, as entered in NPPES) on the Medical Board of California; 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
1912932187
Name
Tzu Chiang Wang
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
C182356 CA
F5793 TX
Self-reported in NPPES; status is on the state search
Practice location
353 W 9TH Ave, Escondido, CA 92025
Phone
(713) 988-2711
Enumerated
Jul 12, 2006
Record last updated
Nov 25, 2024
Fax
(713) 988-3418
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 353 W 9TH Ave

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

  1. Michael WangDiagnostic Radiology Physician1063739175

Verify Tzu Chiang Wang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C182356
    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 California 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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99% fewer Medicare Part D claims than the average internal medicine physician in 2024

46 Medicare Part D claims for 11 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Tzu Wang46
  2. Specialty average3,176

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.

Tzu Chiang Wang among 17,696 internal medicine physician records in California

Tzu Chiang Wang, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 56% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2024 · 61% 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 California 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 Escondido

They are 44 of the 3,509 NPPES records with a practice address in Escondido, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Rachel Bacon, M.DEscondido, CA 920251215963905
  2. Margaret Chen, M.DEscondido, CA 920251659305084
  3. Larry Chiang, MDEscandido, CA 920251912952524
  4. Mark Haberman, M.D.Escondido, CA 920251497780563
  5. Karin Kordas, M.D.Escondido, CA 920251043236292
  6. Lara Le, MDEscondido, CA 920251043239841
  7. Emmet Lee, M.D.Escondido, CA 920251558326801
  8. Richard Mallo, MDEscondido, CA 920251588699490

Common questions

What is Tzu Chiang Wang, MD's NPI number?

Tzu Chiang Wang, MD's National Provider Identifier (NPI) is 1912932187, issued on Jul 12, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tzu Chiang Wang, MD located?

The NPPES record lists a practice address at 353 W 9TH Ave, Escondido, CA, 92025. Phone: (713) 988-2711. Providers update this record themselves, so call before visiting.

How can I verify Tzu Chiang Wang, MD's license?

NPPES lists California license number C182356, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Tzu Chiang Wang, MD prescribe under Medicare Part D?

In 2024, Tzu Chiang Wang, MD had 46 Medicare Part D claims for 11 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.