Gordon Iwasaki, PA
NPI 1619149929 · Medical Physician Assistant · Murrieta, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gordon Iwasaki, PA is a Medical Physician Assistant provider in Murrieta, CA (NPI 1619149929).
Provider details
- NPI number
- 1619149929
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- 13726
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,745 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Testing for Presence of Drug, By Chemistry Analyzers80307 | 907 | $60 |
| Drug Test(s), Definitive, Utilizing (1) Drug Identification Methods Able to Identify Individual Drugs and Distinguish Between Structural Isomers (but Not Necessarily Stereoisomers), Including, But Not Limited to Gc/Ms (any Type, Single Or Tandem) and Lc/MsG0483 | 877 | $240 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 658 | $115 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 200 | $81 |
| Office Or Other Outpatient Visit for the Evaluation and Management of Established Patient That May Not Require Presence of Healthcare Professional99211 | 36 | $23 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 633 | 95 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 323 | 67 |
| Gabapentin | 303 | 56 |
| Oxycodone Hcl | 262 | 62 |
| Morphine Sulfatebrand: Morphine Sulfate Er | 190 | 30 |
| Tizanidine Hcl | 158 | 41 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$30 across 2 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-03-26
- Last updated
- 2015-08-28
Frequently asked questions
- What is Gordon Iwasaki's NPI number?
- Gordon Iwasaki's National Provider Identifier (NPI) is 1619149929, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gordon Iwasaki's specialty?
- Gordon Iwasaki is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gordon Iwasaki located?
- Gordon Iwasaki's practice location on file with NPPES is 40960 California Oaks Rd, Murrieta, CA 92562-5747.
- What is Gordon Iwasaki's phone number?
- The practice phone number listed in the NPPES registry for Gordon Iwasaki is (951) 600-8858.
- Does Gordon Iwasaki accept Medicare?
- Gordon Iwasaki is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gordon Iwasaki's NPI active?
- Yes — Gordon Iwasaki's NPI (1619149929) is active in the NPPES registry as of the last update on 2015-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.