Gordon Iwasaki, PA
Medical Physician Assistant · Murrieta, CA
Gordon Iwasaki, PA is a medical physician assistant with a practice address in Murrieta, California, and NPI 1619149929, issued on Mar 26, 2008. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gordon Iwasaki
- Credential
- PA
- Primary taxonomy
- Medical Physician Assistant 363AM0700X
- Practice location
- 40960 California Oaks RD, Murrieta, CA 92562
- Phone
- (951) 600-8858
- Enumerated
- Mar 26, 2008
- Entity
- Type 1 · individual
Verify Gordon Iwasaki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
2.9 times the Medicare Part D claims of the average medical physician assistant in 2024
3,283 Medicare Part D claims for 283 beneficiaries, against an average of 1,139 among the 25,090 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 1,835 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen633 claims
- Oxycodone-Acetaminophen323 claims
- Gabapentin303 claims
- Oxycodone Hcl262 claims
- Morphine Sulfate Er190 claims
- Tizanidine Hcl158 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.
The Medicare quality score for 2023: 7.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $30.16
2 payments, mostly food and beverage; the largest payer was Boston Scientific Corporation. The 16,940 providers of this specialty with any payment received $1,050.90 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
- Zachary C Cohen MD ApcSan Diego, 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.
Medical Physician Assistant providers in California
There are 3,489 medical physician assistant records in California.
Other medical physician assistant records in California
- Bridget Abajian, PA-CLos Angeles, CA1518677061
- Crispin Abbott, PHYSICIAN ASSISTANTThousand Oaks, CA1063467926
- Abdol Hamid Abdali Hajiabadi, P.A.Santa Ana, CA1285747964
- Jilbert Abnoosian, PALynwood, CA1447300314
- Reema Aboelrish, PA-CFresno, CA1376466144
- Sakina Abowath, P.A.Diamond Bar, CA1326287525
- Selin Abraamyan, PA-CGlendale, CA1144795899
- Antonious Abraham, PA-CCovina, CA1003434275
- Michelle AbrahamSacramento, CA1952875957
- Therese Abraham, P.A.-CGlendale, CA1063726586
Common questions
What is Gordon Iwasaki, PA's NPI number?
Gordon Iwasaki, PA's National Provider Identifier (NPI) is 1619149929, issued on Mar 26, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Gordon Iwasaki, PA located?
The NPPES record lists a practice address at 40960 California Oaks RD, Murrieta, CA, 92562. Phone: (951) 600-8858. Providers update this record themselves, so call before visiting.
How can I verify Gordon Iwasaki, PA's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Gordon Iwasaki, PA prescribe under Medicare Part D?
In 2024, Gordon Iwasaki, PA had 3,283 Medicare Part D claims for 283 beneficiaries; the average among medical physician assistant prescribers was 1,139. Part D covers Medicare prescriptions only.
What is Gordon Iwasaki, PA's Medicare quality score?
The 2023 MIPS final score is 7.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.