Mythili Nagaraj, M.D.
Internal Medicine Physician · Fullerton, CA
Mythili Nagaraj, M.D. is an internal medicine physician with a practice address in Fullerton, California, and NPI 1225122674, issued on Oct 2, 2006. Check the license (California C52265, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mythili Nagaraj
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- C52265 CA
36300 KY
Self-reported in NPPES; status is on the state search - Practice location
- 1651 Avenida Selva, Fullerton, CA 92833
- Phone
- (714) 905-4072
- Enumerated
- Oct 2, 2006
- Record last updated
- May 24, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080114000682); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Mythili Nagaraj in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C52265Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average internal medicine physician in 2024
612 Medicare Part D claims for 170 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 42 claims were for opioids.
Most prescribed
- Atorvastatin Calcium48 claims
- Amlodipine Besylate39 claims
- Hydrocodone-Acetaminophen33 claims
- Losartan Potassium26 claims
- Lisinopril25 claims
- Alprazolam17 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: $217.55
8 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
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
- AmplehealthSacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mythili Nagaraj among 17,696 internal medicine physician records in California
Mythili Nagaraj, M.D. 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1993 · median 2004 among the 11,065 with a school on file
- Record last updated2016 · 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).
44 internal medicine physician records list a practice address in Fullerton
They are 44 of the 5,437 NPPES records with a practice address in Fullerton, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Fullerton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Arun Patel, MDFullerton, CA 928321477628840
- Lalitha Vakkalanka, M.D.Fullerton, CA 928321194755959
- Rajiv Bhavsar, M.D.Fullerton, CA 928351477550648
- Bradley Borsari, MDFullerton, CA 928351104826619
- Eugene BostonFullerton, CA 928351023019965
- Ruben Cabral, MDFullerton, CA 928351568458008
- Friedhelm Cordes, M.D.Fullerton, CA 928351588650931
- Robert Francis, M.D.Fullerton, CA 928351366439804
Common questions
What is Mythili Nagaraj, M.D.'s NPI number?
Mythili Nagaraj, M.D.'s National Provider Identifier (NPI) is 1225122674, issued on Oct 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mythili Nagaraj, M.D. located?
The NPPES record lists a practice address at 1651 Avenida Selva, Fullerton, CA, 92833. Phone: (714) 905-4072. Providers update this record themselves, so call before visiting.
How can I verify Mythili Nagaraj, M.D.'s license?
NPPES lists California license number C52265, 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 Mythili Nagaraj, M.D. prescribe under Medicare Part D?
In 2024, Mythili Nagaraj, M.D. had 612 Medicare Part D claims for 170 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.