Ritu Jain Viswanath, MD
Internal Medicine Physician · Tarzana, CA
Ritu Jain Viswanath, MD is an internal medicine physician with a practice address in Tarzana, California, and NPI 1497029078, issued on Feb 29, 2012. Check the license (California A125466, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ritu Jain Viswanath
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A125466 CA
ME120655 FL
Self-reported in NPPES; status is on the state search - Practice location
- 5525 Etiwanda Ave Ste 228, Tarzana, CA 91356
- Phone
- (310) 571-5015
- Enumerated
- Feb 29, 2012
- Record last updated
- May 11, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 5525 Etiwanda Ave Ste 228
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ryan Tantone, MDOrthopaedic Hand Surgery Physician1316407505
- Purab Viswanath, MDOrthopaedic Hand Surgery Physician1336374958
Verify Ritu Jain Viswanath in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A125466Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
130 Medicare Part D claims for 92 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of 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.
Ritu Jain Viswanath among 17,696 internal medicine physician records in California
Ritu Jain Viswanath, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 68% of them.
- NPI issued2012 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
41 internal medicine physician records list a practice address in Tarzana
They are 41 of the 2,122 NPPES records with a practice address in Tarzana, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Tarzana → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- David Abrams, M.D.Tarzana, CA 913561881690865
- Kevin Berger, M.D.Tarzana, CA 913561972522704
- Samuel Elias, M.D.Tarzana, CA 913561982684023
- Azita Fakheri, MDTarzana, CA 913561669410270
- Jeffrey Galpin, M.D.Tarzana, CA 913561386679561
- David Grossman, M.D.Tarzana, CA 913561700843117
- Robert Kayland, M.D.Tarzana, CA 913561871558031
- Gerald Kovar, M.D.Tarzana, CA 913561306883699
Common questions
What is Ritu Jain Viswanath, MD's NPI number?
Ritu Jain Viswanath, MD's National Provider Identifier (NPI) is 1497029078, issued on Feb 29, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Ritu Jain Viswanath, MD located?
The NPPES record lists a practice address at 5525 Etiwanda Ave Ste 228, Tarzana, CA, 91356. Phone: (310) 571-5015. Providers update this record themselves, so call before visiting.
How can I verify Ritu Jain Viswanath, MD's license?
NPPES lists California license number A125466, 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 Ritu Jain Viswanath, MD prescribe under Medicare Part D?
In 2024, Ritu Jain Viswanath, MD had 130 Medicare Part D claims for 92 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.