MR. ROY A. GUIZADO P.A.-C.
NPI 1023129293
Physician Assistant in Claremont, CA

Q: What is Roy Guizado's NPI number?

The NPI number for Roy Guizado is 1023129293. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Q: What is Roy Guizado's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for Roy Guizado was last updated on February 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 31, 2006PECOS Enrolled

1601 MONTE VISTA AVE STE 190, CLAREMONT, CA 91711(909) 865-9977(909) 469-2119 Get Directions Write a Review

NPPES record last updated: February 25, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 15, 2022, Dec 30, 2021 (2 updates tracked since 2021).

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About Mr. Roy A. Guizado P.a.-c. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. ROY A. GUIZADO P.A.-C. (NPI 1023129293) is an individual physician assistant in Claremont, California, licensed in California (PA13551) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (1994).

NPPES Registry Identity

NPI1023129293

Entity TypeIndividualMale

Primary Taxonomy363A00000X

Provider Legal NameMR. ROY A. GUIZADOCredential: P.A.-C.

Location Address1601 MONTE VISTA AVE STE 190Claremont, CA 91711-6600

Mailing Address6590 Montecarlo PlRancho Cucamonga, CA 91701-9015 · (909) 469-5445 · Fax (909) 469-5407

Phone(909) 865-9977

Fax(909) 469-2119

Sole ProprietorNo

Medical School CMSOtherGraduated 1994

Enumeration DateAugust 31, 2006

Last NPPES UpdateFebruary 25, 20262 updates tracked since enumeration

NPPES CertifiedFebruary 25, 2026

✔ NPI 1023129293 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

License✔ Licensed in CA · PA13551

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

1601 MONTE VISTA AVE STE 190, Claremont, CA 91711

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Secondary Practice Locations 2

Location 13110 Chino Ave Ste 150BChino Hills, CA 91709-1295 · Phone (909) 630-7868 · Fax (909) 469-2109

Location 22333 Foothill Blvd Ste CLA Verne, CA 91750-3027 · Phone (909) 392-6511 · Fax (909) 469-2137

Other Identifiers 1

Medicaid1023129293CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Roy A. Guizado P.a.-c. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID1759460637

PECOS Enrollment IDI20080502000588

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91711 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

NICHOLLE A HENLEY D.O.

Family Medicine