Terry Ishihara, MD
Family Medicine Physician · Hawthorne, CA
Terry Ishihara, MD is a family medicine physician with a practice address in Hawthorne, California, and NPI 1609856939, issued on Jan 20, 2006. Check the license (California G87861, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Terry Ishihara
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G87861 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5400 W Rosecrans Ave, Hawthorne, CA 90250
- Phone
- (310) 643-8500
- Enumerated
- Jan 20, 2006
- Entity
- Type 1 · individual
Also registered at 5400 W Rosecrans Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erik Anderson, D.C.Chiropractor1417266198
- Thomas Duralde, MDFamily Medicine Physician1982644043
- William Ruiz, MDFamily Medicine Physician1811912504
Verify Terry Ishihara in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G87861Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
70% more Medicare Part D claims than the average family medicine physician in 2024
6,035 Medicare Part D claims for 420 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 15 claims were for opioids.
Most prescribed
- Atorvastatin Calcium554 claims
- Lisinopril211 claims
- Eliquis197 claims
- Losartan Potassium193 claims
- Metformin Hcl175 claims
- Tamsulosin Hcl154 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: $1,980.19
21 payments, mostly food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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.
One hospital or facility affiliation
- Providence Medical InstituteSan Pedro, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
20 family medicine physician records list a Hawthorne practice address
They are 20 of the 818 NPPES records with a Hawthorne practice address, and 17,133 family medicine physician records in California.
All 20 in Hawthorne → All 17,133 in California → Every provider in Hawthorne →
Other family medicine physician records in California
- Omer Aba-Omer, MDSanta Monica, CA1649702093
- Michelle Ababa, MDWilmington, CA1710922513
- Anna Tzeitel Abalos, MDRoseville, CA1720200017
- Adan Abarca, MDAnaheim, CA1760553689
- Vanessa Abarca, DOVentura, CA1952040859
- Lorraine Abate, M.D.Sacramento, CA1104840008
- Robert Abatecola, MDCastro Valley, CA1669551719
- Romeo Abaya, M.D.Cottonwood, CA1598053506
- Effiem Abbah, MD, MPHSan Francisco, CA1821185133
- Khuzeman Abbasi, MDSanta Rosa, CA1841979952
Common questions
What is Terry Ishihara, MD's NPI number?
Terry Ishihara, MD's National Provider Identifier (NPI) is 1609856939, issued on Jan 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Terry Ishihara, MD located?
The NPPES record lists a practice address at 5400 W Rosecrans Ave, Hawthorne, CA, 90250. Phone: (310) 643-8500. Providers update this record themselves, so call before visiting.
How can I verify Terry Ishihara, MD's license?
NPPES lists California license number G87861, 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 Terry Ishihara, MD prescribe under Medicare Part D?
In 2024, Terry Ishihara, MD had 6,035 Medicare Part D claims for 420 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), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.