NPPES file of Aug 9, 2026

Lisa Yiang Yu Chiang, M.D.

Infectious Disease Physician · Downey, CA

Lisa Yiang Yu Chiang, M.D. is an infectious disease physician with a practice address in Downey, California, and NPI 1215097076, issued on Dec 11, 2006. Check the license (California A068016, 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
1215097076
Name
Lisa Yiang Yu Chiang
Credential
M.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
A068016 CA
Self-reported in NPPES; status is on the state search
Practice location
9449 Imperial Hwy Ste C120, Downey, CA 90242
Phone
(562) 657-4684
Enumerated
Dec 11, 2006
Record last updated
Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20040227000345); accepts Medicare assignment
Medical or professional school
Georgetown University School Of Medicine, 1997
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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Verify Lisa Yiang Yu Chiang in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A068016
    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

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45% fewer Medicare Part D claims than the average infectious disease physician in 2024

379 Medicare Part D claims for 71 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. Lisa Chiang379
  2. Specialty average689

Most prescribed

  1. Doxycycline Monohydrate22 claims
  2. Cefpodoxime Proxetil19 claims
  3. Sulfamethoxazole-Trimethoprim19 claims
  4. Atorvastatin Calcium17 claims
  5. Biktarvy14 claims
  6. Cephalexin14 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: $27.89

1 payment: food and beverage; the largest payer was Shionogi Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Lisa Chiang$27.89
  2. Specialty average$4,362.19

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. Southern California Permanente Medical GroupBellflower, CA

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

Lisa Yiang Yu Chiang among 1,119 infectious disease physician records in California

Lisa Yiang Yu Chiang, M.D. is one of 1,119 infectious disease 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 4% of them.

  • NPI issued2006 · 4% of these records are older, 54% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1997 · median 2003 among the 735 with a school on file
  • Record last updated2021 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in California

There are 1,119 infectious disease physician records in California.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Michelle Lebrun, M.D.Downey, CA 902421215311634
  2. Sandeep Bansil, M.D.Downey, CA 902411184799124
  3. James Ziegenbein, M.D. A PROF CORPDowney, CA 902401447278072
  4. Daniel Ehrensaft, MDCulver City, CA 902321184729352
  5. Isam Mawas, MDCulver City, CA 902321790971422
  6. Martha Sonnenberg, MDCulver City, CA 902321356483101
  7. Hugh Fulmer, MDLynwood, CA 902621073689832
  8. Maita Kuvhenguhwa, M.D.Compton, CA 902221467795203

Common questions

What is Lisa Yiang Yu Chiang, M.D.'s NPI number?

Lisa Yiang Yu Chiang, M.D.'s National Provider Identifier (NPI) is 1215097076, issued on Dec 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lisa Yiang Yu Chiang, M.D. located?

The NPPES record lists a practice address at 9449 Imperial Hwy Ste C120, Downey, CA, 90242. Phone: (562) 657-4684. Providers update this record themselves, so call before visiting.

How can I verify Lisa Yiang Yu Chiang, M.D.'s license?

NPPES lists California license number A068016, 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 Lisa Yiang Yu Chiang, M.D. prescribe under Medicare Part D?

In 2024, Lisa Yiang Yu Chiang, M.D. had 379 Medicare Part D claims for 71 beneficiaries; the average among infectious disease physician prescribers was 689. 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.