NPPES file of Aug 9, 2026

Tarun Marwaha, M.D.

Nephrology Physician · Fountain Valley, CA

Tarun Marwaha, M.D. is a nephrology physician with a practice address in Fountain Valley, California, and NPI 1407964976, issued on Aug 26, 2006. Check the license (California A70632, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1407964976
Name
Tarun Marwaha
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License number
A70632 CA
Self-reported in NPPES; status is on the state search
Practice location
11180 Warner Ave Ste 463, Fountain Valley, CA 92708
Phone
(714) 241-9200
Enumerated
Aug 26, 2006
Record last updated
Feb 2, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(714) 241-9109
Medicare enrollment
Enrolled (PECOS I20080522000621); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →

Also registered at 11180 Warner Ave Ste 463

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Zavier Ahmed, M.D.Nephrology Physician1255677134
  2. Afsaneh Haftbaradaran Mohammadi, M.D.Nephrology Physician1902040009
  3. Deborah HarropFamily Nurse Practitioner1649925421
  4. Heather McIsaac, AGACNP-BC, APRNAcute Care Nurse Practitioner1861022824
  5. Jeremy Pineda, NPPrimary Care Nurse Practitioner1245928209

Verify Tarun Marwaha in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A70632    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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52% fewer Medicare Part D claims than the average nephrology physician in 2024

696 Medicare Part D claims for 113 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.

  1. Tarun Marwaha696
  2. Specialty average1,465

Most prescribed

  1. Hydralazine Hcl51 claims
  2. Sevelamer Carbonate33 claims
  3. Amlodipine Besylate29 claims
  4. Nifedipine Er27 claims
  5. Furosemide25 claims
  6. Velphoro25 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: $203.18

5 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk 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.

  1. Tarun Marwaha$203.18
  2. Specialty average$3,091.37

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

  1. Pacific Renal Care Medical CorpFountain Valley, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Tarun Marwaha among 1,468 nephrology physician records in California

Tarun Marwaha, 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 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
  • Graduated1996 · median 2001 among the 1,128 with a school on file
  • Record last updated2017 · 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

  1. Zavier Ahmed, M.D.Fountain Valley, CA 927081255677134
  2. Sandeep Dang, M.D.Fountain Valley, CA 927081730146937
  3. Son Dinh, M.D.Fountain Valley, CA 927081174564256
  4. Lalitha Durairaj, MDFountain Valley, CA 927081306894548
  5. Afsaneh Haftbaradaran Mohammadi, M.D.Fountain Valley, CA 927081902040009
  6. Joginder Jodhka, MDFountain Valley, CA 927081558379503
  7. Gaytri Manek, MDFountain Valley, CA 927081124298237
  8. Essam Mostafa, M.D.Fountain Valley, CA 927081316932270

Common questions

What is Tarun Marwaha, M.D.'s NPI number?

Tarun Marwaha, M.D.'s National Provider Identifier (NPI) is 1407964976, issued on Aug 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tarun Marwaha, M.D. located?

The NPPES record lists a practice address at 11180 Warner Ave Ste 463, Fountain Valley, CA, 92708. Phone: (714) 241-9200. Providers update this record themselves, so call before visiting.

How can I verify Tarun Marwaha, M.D.'s license?

NPPES lists California license number A70632, 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 Tarun Marwaha, M.D. prescribe under Medicare Part D?

In 2024, Tarun Marwaha, M.D. had 696 Medicare Part D claims for 113 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.