Piangwarin Phaosawasdi, M.D
Nephrology Physician · Vacaville, CA
Piangwarin Phaosawasdi, M.D is a nephrology physician with a practice address in Vacaville, California, and NPI 1962727123, issued on Mar 31, 2010. Check the license (California A124444, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Piangwarin Phaosawasdi
- Credential
- M.D
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A124444 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1360 Burton Dr, Vacaville, CA 95687
- Phone
- (707) 446-4379
- Enumerated
- Mar 31, 2010
- Record last updated
- Jun 14, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (707) 446-4417
- Medicare enrollment
- Enrolled (PECOS I20150707003459); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 1360 Burton Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Phuong Khanh Ho, O.DOptometrist1033366752
- Ehsan Shahmir, MDNephrology Physician1700855210
- Mai Uyen Tran, D.D.SPediatric Dentistry1790988004
Verify Piangwarin Phaosawasdi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A124444Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
21% more Medicare Part D claims than the average nephrology physician in 2024
1,774 Medicare Part D claims for 266 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Allopurinol291 claims
- Calcitriol104 claims
- Farxiga100 claims
- Jardiance100 claims
- Carvedilol86 claims
- Losartan Potassium82 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: $835.01
23 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.
Bills Medicare through 2 group practices
- Ong Rubin Shahmir A Medical CorporationFairfield, CA
- Providence Medical FoundationNapa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Piangwarin Phaosawasdi among 1,468 nephrology physician records in California
Piangwarin Phaosawasdi, M.D 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 2010, is newer than 73% of them.
- NPI issued2010 · 73% of these records are older, 24% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2007 · median 2001 among the 1,128 with a school on file
- Record last updated2018 · 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 Vacaville → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Ehsan Shahmir, MDVacaville, CA 956871700855210
- Aaron YoungVacaville, CA 956871942705827
- Flordeliza Lilagan, M.D.Vacaville, CA 956881144540931
- John Kelada, M.D.Cameron Park, CA 956821861703530
- Ganesh Kambhampati, M.DWoodland, CA 956951649400839
- Adarsh Bhat, M.D.Roseville, CA 956611861443228
- Don Chang, M.D.Roseville, CA 956611619101805
- Lana Gafter, M.D.Roseville, CA 956611376529552
Common questions
What is Piangwarin Phaosawasdi, M.D's NPI number?
Piangwarin Phaosawasdi, M.D's National Provider Identifier (NPI) is 1962727123, issued on Mar 31, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Piangwarin Phaosawasdi, M.D located?
The NPPES record lists a practice address at 1360 Burton Dr, Vacaville, CA, 95687. Phone: (707) 446-4379. Providers update this record themselves, so call before visiting.
How can I verify Piangwarin Phaosawasdi, M.D's license?
NPPES lists California license number A124444, 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 Piangwarin Phaosawasdi, M.D prescribe under Medicare Part D?
In 2024, Piangwarin Phaosawasdi, M.D had 1,774 Medicare Part D claims for 266 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.