Thanh Cao, D.O.
Nephrology Physician · Fountain Valley, CA
Thanh Cao, D.O. is a nephrology physician with a practice address in Fountain Valley, California, and NPI 1073963583, issued on Jun 15, 2016. Check the license (California 20A17028, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thanh Cao
- Credential
- D.O.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 20A17028 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11100 Warner Ave Ste 218, Fountain Valley, CA 92708
- Phone
- (714) 641-9696
- Enumerated
- Jun 15, 2016
- Record last updated
- Jan 16, 2026
- Fax
- (714) 641-1211
- Medicare enrollment
- Enrolled (PECOS I20210222002728); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 11100 Warner Ave Ste 218
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alan Cantillep, MDNephrology Physician1639517808
- Sandeep Dang, M.D.Nephrology Physician1730146937
- Michael Floied, P.A.C.Physician Assistant1730477514
- Sithu Lin, M.D.Nephrology Physician1023417649
- Bich Thu NguyenNurse Practitioner1841912771
- John Ong, DONephrology Physician1477056406
Verify Thanh Cao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A17028Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% more Medicare Part D claims than the average nephrology physician in 2024
2,666 Medicare Part D claims for 409 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Furosemide189 claims
- Amlodipine Besylate184 claims
- Losartan Potassium169 claims
- Kerendia153 claims
- Sodium Polystyrene Sulfonate117 claims
- Bumetanide113 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: $831.14
8 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, 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.
Bills Medicare through one group practice
- Balboa Nephrology Medical Group IncFountain Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thanh Cao among 1,468 nephrology physician records in California
Thanh Cao, 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 2016, is newer than 89% of them.
- NPI issued2016 · 89% of these records are older, 9% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2016 · median 2001 among the 1,128 with a school on file
- Record last updated2026 · 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 Fountain Valley → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Zavier Ahmed, M.D.Fountain Valley, CA 927081255677134
- Sandeep Dang, M.D.Fountain Valley, CA 927081730146937
- Son Dinh, M.D.Fountain Valley, CA 927081174564256
- Lalitha Durairaj, MDFountain Valley, CA 927081306894548
- Afsaneh Haftbaradaran Mohammadi, M.D.Fountain Valley, CA 927081902040009
- Joginder Jodhka, MDFountain Valley, CA 927081558379503
- Gaytri Manek, MDFountain Valley, CA 927081124298237
- Tarun Marwaha, M.D.Fountain Valley, CA 927081407964976
Common questions
What is Thanh Cao, D.O.'s NPI number?
Thanh Cao, D.O.'s National Provider Identifier (NPI) is 1073963583, issued on Jun 15, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Thanh Cao, D.O. located?
The NPPES record lists a practice address at 11100 Warner Ave Ste 218, Fountain Valley, CA, 92708. Phone: (714) 641-9696. Providers update this record themselves, so call before visiting.
How can I verify Thanh Cao, D.O.'s license?
NPPES lists California license number 20A17028, 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 Thanh Cao, D.O. prescribe under Medicare Part D?
In 2024, Thanh Cao, D.O. had 2,666 Medicare Part D claims for 409 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.