Wen-Yuan Marieanne Chiang, D.O.
Nephrology Physician · South Gate, CA
Wen-Yuan Marieanne Chiang, D.O. is a nephrology physician with a practice address in South Gate, California, and NPI 1295753655, issued on Jul 17, 2006. Check the license (California 20A8521, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Wen-Yuan Marieanne Chiang
- Credential
- D.O.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 20A8521 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9844 Atlantic Ave, South Gate, CA 90280
- Phone
- (310) 631-3502
- Enumerated
- Jul 17, 2006
- Record last updated
- Jan 28, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (310) 631-5143
- Medicare enrollment
- Enrolled (PECOS I20061031000362); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 9844 Atlantic Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Malvin Yan, D.O.Nephrology Physician1033153101
Verify Wen-Yuan Marieanne Chiang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A8521Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7% fewer Medicare Part D claims than the average nephrology physician in 2024
1,369 Medicare Part D claims for 182 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Sevelamer Carbonate173 claims
- Clinolipid113 claims
- Nifedipine Er76 claims
- Calcitriol63 claims
- Farxiga62 claims
- Amlodipine Besylate61 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: $2,842.42
21 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Wen-Yuan Marieanne Chiang among 1,468 nephrology physician records in California
Wen-Yuan Marieanne Chiang, D.O. is one of 1,468 nephrology physician records with a practice address in California. 88% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 48% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1997 · median 2001 among the 1,128 with a school on file
- Record last updated2016 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in California
There are 1,468 nephrology physician records in California.
All 1,468 in California → Every provider in South Gate → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Malvin Yan, D.O.South Gate, CA 902801033153101
- Mohammad Ahraz Hussain, MDRedondo Beach, CA 902781801245063
- Norimoto Yanagawa, M.D.Pacific Palisades, CA 902721891085957
- Adegbenga Adetola, MDLynwood, CA 902621881776219
- Ramon Guadiz, M.D.Lynwood, CA 902621003998147
- Andy Hong, MDLynwood, CA 902621508861667
- Samia Khwaja, M.D.Lynwood, CA 902621972554160
- Brian Lee, MDLynwood, CA 902621558457556
Common questions
What is Wen-Yuan Marieanne Chiang, D.O.'s NPI number?
Wen-Yuan Marieanne Chiang, D.O.'s National Provider Identifier (NPI) is 1295753655, issued on Jul 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Wen-Yuan Marieanne Chiang, D.O. located?
The NPPES record lists a practice address at 9844 Atlantic Ave, South Gate, CA, 90280. Phone: (310) 631-3502. Providers update this record themselves, so call before visiting.
How can I verify Wen-Yuan Marieanne Chiang, D.O.'s license?
NPPES lists California license number 20A8521, 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 Wen-Yuan Marieanne Chiang, D.O. prescribe under Medicare Part D?
In 2024, Wen-Yuan Marieanne Chiang, D.O. had 1,369 Medicare Part D claims for 182 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.