John Kasawa, M.D.
Family Medicine Physician · El Cajon, CA
John Kasawa, M.D. is a family medicine physician with a practice address in El Cajon, California, and NPI 1134230329, issued on Aug 31, 2006. Check the license (California A79338, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Kasawa
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A79338 CA
Self-reported in NPPES; status is on the state search - Practice location
- 807 S Mollison Ave Unit 31, El Cajon, CA 92020
- Phone
- (858) 349-8826
- Enumerated
- Aug 31, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040219001017); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify John Kasawa in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A79338Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% fewer Medicare Part D claims than the average family medicine physician in 2024
2,961 Medicare Part D claims for 161 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 35 claims were for opioids.
Most prescribed
- Lisinopril228 claims
- Amlodipine Besylate222 claims
- Metformin Hcl199 claims
- Simvastatin190 claims
- Atorvastatin Calcium131 claims
- Gabapentin125 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
- LA Maestra Family Clinic, Inc.El Cajon, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Kasawa among 17,133 family medicine physician records in California
John Kasawa, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2000 · median 2005 among the 10,652 with a school on file
- Record last updated2007 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
52 family medicine physician records list a practice address in El Cajon
They are 52 of the 3,277 NPPES records with a practice address in El Cajon, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in El Cajon → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Mumtaz Almansour, M.D.El Cajon, CA 920201558567446
- Mohamed Baiou, M.D.El Cajon, CA 920201447542659
- Susan Catling, N.P.El Cajon, CA 920201598867046
- Kevin Ellis, D.OEl Cajon, CA 920201306861703
- Mohan Garikaparthi, M.D.El Cajon, CA 920201528149168
- Christopher Gordon, MDEl Cajon, CA 920201477711521
- Carol Hastanan, MDEl Cajon, CA 920201861648461
- Steven Horowitz, D.O.El Cajon, CA 920201619997624
Common questions
What is John Kasawa, M.D.'s NPI number?
John Kasawa, M.D.'s National Provider Identifier (NPI) is 1134230329, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Kasawa, M.D. located?
The NPPES record lists a practice address at 807 S Mollison Ave Unit 31, El Cajon, CA, 92020. Phone: (858) 349-8826. Providers update this record themselves, so call before visiting.
How can I verify John Kasawa, M.D.'s license?
NPPES lists California license number A79338, 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 John Kasawa, M.D. prescribe under Medicare Part D?
In 2024, John Kasawa, M.D. had 2,961 Medicare Part D claims for 161 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.