Bassam A. Hadaya, MD
Nephrology Physician · Lancaster, CA
Bassam A. Hadaya, MD is a nephrology physician with a practice address in Lancaster, California, and NPI 1801864301, issued on Mar 9, 2006. Check the license (California A29939, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Bassam A. Hadaya
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A29939 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1759 W Avenue J, Lancaster, CA 93534
- Phone
- (661) 948-1388
- Enumerated
- Mar 9, 2006
- Record last updated
- Feb 23, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (661) 948-1223
- Medicaid ID
- OOA299390 CA
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 1759 W Avenue J
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ghassan Dahhan, MDNephrology Physician1821066325
- Nanette Fonte, M.D.Nephrology Physician1962732974
- Bassel Hadaya, M.D.Nephrology Physician1174629950
- Rendell Manalo, D.O.Nephrology Physician1265610950
- Sung Yang, MDNephrology Physician1871562900
Verify Bassam A. Hadaya in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A29939Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average nephrology physician in 2024
11 Medicare Part D claims, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
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.
Bassam A. Hadaya among 1,468 nephrology physician records in California
Bassam A. Hadaya, MD 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 fileNo · 77% of these records are
- 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 Lancaster → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Ghassan Dahhan, MDLancaster, CA 935341821066325
- Nanette Fonte, M.D.Lancaster, CA 935341962732974
- Bassel Hadaya, M.D.Lancaster, CA 935341174629950
- Tarek Karam, MDLancaster, CA 935341467081190
- Joseph MahalliLancaster, CA 935341023676376
- Rendell Manalo, D.O.Lancaster, CA 935341265610950
- Abraham Paykar, M.D.Lancaster, CA 935341114903762
- Vinay Sunku, MDLancaster, CA 935341326039405
Common questions
What is Bassam A. Hadaya, MD's NPI number?
Bassam A. Hadaya, MD's National Provider Identifier (NPI) is 1801864301, issued on Mar 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Bassam A. Hadaya, MD located?
The NPPES record lists a practice address at 1759 W Avenue J, Lancaster, CA, 93534. Phone: (661) 948-1388. Providers update this record themselves, so call before visiting.
How can I verify Bassam A. Hadaya, MD's license?
NPPES lists California license number A29939, 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 Bassam A. Hadaya, MD prescribe under Medicare Part D?
In 2024, Bassam A. Hadaya, MD had 11 Medicare Part D claims; 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.