Ramani Nathan, MD
Nephrology Physician · Garden Grove, CA
Ramani Nathan, MD is a nephrology physician with a practice address in Garden Grove, California, and NPI 1487623724, issued on Mar 17, 2006. Check the license (California A26761, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ramani Nathan
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A26761 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12665 Garden Grove Blvd Ste 211, Garden Grove, CA 92843
- Phone
- (714) 636-2890
- Enumerated
- Mar 17, 2006
- Record last updated
- Nov 29, 2023
- Medicaid ID
- ZZZ75439Z CA
- Medicare enrollment
- Enrolled (PECOS I20120221000966); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 12665 Garden Grove Blvd Ste 211
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Steve Bui, MDNephrology Physician1154390425
- Ashish Kalthia, MDSpecialist1508880659
- Russell Ness, MDNephrology Physician1770552978
- Samir Patel, MDNephrology Physician1427519552
- Sridhar Reddy, M.D.Nephrology Physician1780835447
- Peter Sohn, M.D.Nephrology Physician1225579675
Verify Ramani Nathan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A26761Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average nephrology physician in 2024
186 Medicare Part D claims for 25 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Prosol26 claims
- Sevelamer Carbonate24 claims
- Calcium Acetate22 claims
- Pantoprazole Sodium18 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.
Bills Medicare through one group practice
- Southern California Kidney Consultants IncGarden Grove, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ramani Nathan among 1,468 nephrology physician records in California
Ramani Nathan, 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 fileYes · 77% of these records are
- Graduated1964 · median 2001 among the 1,128 with a school on file
- Record last updated2023 · 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 Garden Grove → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Steve Bui, MDGarden Grove, CA 928431154390425
- An Dang, M.D.Garden Grove, CA 928431952302564
- Hong Kim, M.D.Garden Grove, CA 928431396727764
- Russell Ness, MDGarden Grove, CA 928431770552978
- Mital Patel, MDGarden Grove, CA 928431609223361
- Samir Patel, MDGarden Grove, CA 928431427519552
- Sridhar Reddy, M.D.Garden Grove, CA 928431780835447
- Peter Sohn, M.D.Garden Grove, CA 928431225579675
Common questions
What is Ramani Nathan, MD's NPI number?
Ramani Nathan, MD's National Provider Identifier (NPI) is 1487623724, issued on Mar 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ramani Nathan, MD located?
The NPPES record lists a practice address at 12665 Garden Grove Blvd Ste 211, Garden Grove, CA, 92843. Phone: (714) 636-2890. Providers update this record themselves, so call before visiting.
How can I verify Ramani Nathan, MD's license?
NPPES lists California license number A26761, 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 Ramani Nathan, MD prescribe under Medicare Part D?
In 2024, Ramani Nathan, MD had 186 Medicare Part D claims for 25 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.