Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mr. Brett Ryan Grundl, MMS, PA-C

Individual provider Physician Assistant · NPI 1578783171

Mr. Brett Ryan Grundl, MMS, PA-C is a Physician Assistant in Hemet, California. Qualified in 2006, 20 years ago. Practices with County of Riverside, a 187-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
20
Licensed in
CA
In the registry since
2007
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

880 N State St
Hemet, CA 92543-1459 Not confirmed with CMS for 15 years — call before visiting
Phone: (951) 766-2462
Fax: (951) 766-2479
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA 18749 (CA)

Record details

NPI number1578783171
Entity typeIndividual (Type 1)
GenderMale
Credentials MMS , PA-C
Sole proprietorNo
NPI enumeratedApril 26, 2007
Last updated in NPPESJuly 5, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2006 (20 years in practice)
Group practice County Of Riverside — 187 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $52 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at County of Riverside

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 187 clinicians in the practice; 12 are shown here.

Other providers in Hemet