Rajive Zachariah, M.D.
Internal Medicine Physician · Mission Viejo, CA
Rajive Zachariah, M.D. is an internal medicine physician with a practice address in Mission Viejo, California, and NPI 1295155497, issued on Apr 27, 2014. Check the license (California C186581, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Rajive Zachariah
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- C186581 CA
Self-reported in NPPES; status is on the state search - Practice location
- 26800 Crown Valley Pkwy Ste 325, Mission Viejo, CA 92691
- Phone
- (949) 364-6000
- Enumerated
- Apr 27, 2014
- Record last updated
- Jun 9, 2026
- Fax
- (949) 364-3213
- Medicare enrollment
- Enrolled (PECOS I20171012003486); 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 →
Also registered at 26800 Crown Valley Pkwy Ste 325
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Miranda, NP-CFamily Nurse Practitioner1942547294
- Elizabeth Nieto, M.D.Internal Medicine Physician1689020760
- Tina OrtizMarriage & Family Therapist1063539567
- Stefanie Zargarbashi, LCSWClinical Social Worker1629527692
Verify Rajive Zachariah in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C186581Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% more Medicare Part D claims than the average internal medicine physician in 2024
6,004 Medicare Part D claims for 648 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 138 claims were for opioids.
Most prescribed
- Atorvastatin Calcium539 claims
- Amlodipine Besylate378 claims
- Losartan Potassium330 claims
- Metoprolol Succinate175 claims
- Lisinopril161 claims
- Levothyroxine Sodium153 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.
One hospital affiliation
- Straub Clinic And HospitalHonolulu, HI · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Rajive Zachariah among 17,696 internal medicine physician records in California
Rajive Zachariah, 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 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2014 · median 2004 among the 11,065 with a school on file
- 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).
58 internal medicine physician records list a practice address in Mission Viejo
They are 58 of the 2,156 NPPES records with a practice address in Mission Viejo, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Mission Viejo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Bahman Badie, M.D.Mission Viejo, CA 926911396721916
- Sherif El Sokkary, M.D.Mission Viejo, CA 926911710964432
- Dennis Haghighat, M.D.Mission Viejo, CA 926911568449171
- Mark Hauptman, M.D.Mission Viejo, CA 926911801873427
- Raymond Kwa, M.D.Mission Viejo, CA 926911609853092
- Murray Margolis, M.D.Mission Viejo, CA 926911457338857
- Vy Nguyen, M.D.Mission Viejo, CA 926911881671154
- Nader Noorian, M.D.Mission Viejo, CA 926911861479057
Common questions
What is Rajive Zachariah, M.D.'s NPI number?
Rajive Zachariah, M.D.'s National Provider Identifier (NPI) is 1295155497, issued on Apr 27, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Rajive Zachariah, M.D. located?
The NPPES record lists a practice address at 26800 Crown Valley Pkwy Ste 325, Mission Viejo, CA, 92691. Phone: (949) 364-6000. Providers update this record themselves, so call before visiting.
How can I verify Rajive Zachariah, M.D.'s license?
NPPES lists California license number C186581, 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 Rajive Zachariah, M.D. prescribe under Medicare Part D?
In 2024, Rajive Zachariah, M.D. had 6,004 Medicare Part D claims for 648 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.