Leena S. Ray, MD
Nephrology Physician · Concord, CA
Leena S. Ray, MD is a nephrology physician with a practice address in Concord, California, and NPI 1679574693, issued on Aug 2, 2005. Check the license (California A84526, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Leena S. Ray
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A84526 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2222 East Street, Concord, CA 94520
- Phone
- (925) 686-1230
- Enumerated
- Aug 2, 2005
- Record last updated
- Jun 25, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (925) 686-8443
- Medicaid ID
- GR0020610 CA
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 2222 East Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Nadine Kindy-Baillot, MDOphthalmology Physician1689650772
Verify Leena S. Ray in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A84526Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average nephrology physician in 2024
103 Medicare Part D claims for 29 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate21 claims
- Losartan Potassium17 claims
- Lisinopril16 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.
Leena S. Ray among 1,468 nephrology physician records in California
Leena S. Ray, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileNo · 77% of these records are
- Record last updated2008 · 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 Concord → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Smitha Anam, M.DConcord, CA 945201093033276
- Lynda Frassetto, M.D.Concord, CA 945201588695472
- Chenyin He, MDConcord, CA 945201184833857
- Ileana Helms, MDConcord, CA 945201225039142
- Vijay Jain, MDConcord, CA 945201407938632
- Rajeev Kaul, M.B.B.SConcord, CA 945201336198183
- Edward Kim, MDConcord, CA 945201679619092
- Jason LawConcord, CA 945201114345006
Common questions
What is Leena S. Ray, MD's NPI number?
Leena S. Ray, MD's National Provider Identifier (NPI) is 1679574693, issued on Aug 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Leena S. Ray, MD located?
The NPPES record lists a practice address at 2222 East Street, Concord, CA, 94520. Phone: (925) 686-1230. Providers update this record themselves, so call before visiting.
How can I verify Leena S. Ray, MD's license?
NPPES lists California license number A84526, 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 Leena S. Ray, MD prescribe under Medicare Part D?
In 2024, Leena S. Ray, MD had 103 Medicare Part D claims for 29 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.