Masahiro Kushigemachi, M.D.
Family Medicine Physician · Simi Valley, CA
Masahiro Kushigemachi, M.D. is a family medicine physician with a practice address in Simi Valley, California, and NPI 1386617058, issued on Feb 10, 2006. Check the license (California G52214, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Masahiro Kushigemachi
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G52214 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2925 Sycamore Dr, Simi Valley, CA 93065
- Phone
- (805) 578-9620
- Enumerated
- Feb 10, 2006
- Record last updated
- Mar 12, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (805) 955-0498
- Medicare enrollment
- Enrolled (PECOS I20110217000312); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 1982
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 2925 Sycamore Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joyce Altschule-Pisarev, N.P.Women's Health Nurse Practitioner1346217296
- Leslie Buchanan, P.A.Physician Assistant1841267622
- Ganesh Devendra, MDSpecialist1083681134
- Anthony Hoyle, R.PH.Pharmacist1326316449
- Jun Kim, FNPFamily Nurse Practitioner1073587572
- Smita Mehta, P.A.Physician Assistant1073580866
Verify Masahiro Kushigemachi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G52214Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% more Medicare Part D claims than the average family medicine physician in 2024
6,635 Medicare Part D claims for 607 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 177 claims were for opioids.
Most prescribed
- Atorvastatin Calcium509 claims
- Metformin Hcl349 claims
- Amlodipine Besylate345 claims
- Losartan Potassium335 claims
- Levothyroxine Sodium284 claims
- Lisinopril218 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: $23.46
1 payment: food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 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
- Adventist Health Physicians NetworkSimi Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Masahiro Kushigemachi among 17,133 family medicine physician records in California
Masahiro Kushigemachi, 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
- Graduated1982 · median 2005 among the 10,652 with a school on file
- Record last updated2020 · 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).
60 family medicine physician records list a practice address in Simi Valley
They are 60 of the 1,397 NPPES records with a practice address in Simi Valley, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Simi Valley → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Ingrid Antall, MDSimi Valley, CA 930651629061700
- George Carbone, M.D.Simi Valley, CA 930651437124849
- Jerry Davidson, M.D.Simi Valley, CA 930651922073998
- Donald Downs, MD.Simi Valley, CA 930651568451979
- Harry Drummond, MDSimi Valley, CA 930651164416517
- Daniel Ghiyam, MDSimi Valley, CA 930651750378188
- Shayla Kasel, M.D.Simi Valley, CA 930651649241837
- Jonathan Kurohara, M.DSimi Valley, CA 930651427023407
Common questions
What is Masahiro Kushigemachi, M.D.'s NPI number?
Masahiro Kushigemachi, M.D.'s National Provider Identifier (NPI) is 1386617058, issued on Feb 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Masahiro Kushigemachi, M.D. located?
The NPPES record lists a practice address at 2925 Sycamore Dr, Simi Valley, CA, 93065. Phone: (805) 578-9620. Providers update this record themselves, so call before visiting.
How can I verify Masahiro Kushigemachi, M.D.'s license?
NPPES lists California license number G52214, 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 Masahiro Kushigemachi, M.D. prescribe under Medicare Part D?
In 2024, Masahiro Kushigemachi, M.D. had 6,635 Medicare Part D claims for 607 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.