RICHARD A. TIMMERMAN JR. P.A.
NPI 1083809552
Physician Assistant in Mission Viejo, CA

Q: What is Richard Timmerman's NPI number?

The NPI number for Richard Timmerman is 1083809552. It was assigned to this individual provider in the NPPES registry on September 7, 2007.

Q: What is Richard Timmerman'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 Richard Timmerman was last updated on September 7, 2007. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since September 07, 2007PECOS Enrolled

27700 MEDICAL CENTER RD, MISSION VIEJO, CA 92691(949) 364-1400(949) 365-4941 Get Directions Write a Review

NPPES record last updated: September 7, 2007. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Richard A. Timmerman Jr. P.a. NPPES

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

RICHARD A. TIMMERMAN JR. P.A. (NPI 1083809552) is an individual physician assistant in Mission Viejo, California, licensed in California (PA19082) and active in the NPI registry since September 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1083809552

Entity TypeIndividualMale

Primary Taxonomy363A00000X

Provider Legal NameRICHARD A. TIMMERMAN JR.Credential: P.A.

Location Address27700 MEDICAL CENTER RDMission Viejo, CA 92691-6426

Mailing AddressPo Box 660099Arcadia, CA 91066-0099 · (626) 447-0296 · Fax (626) 447-6057

Phone(949) 364-1400

Fax(949) 365-4941

Sole ProprietorNo

Enumeration DateSeptember 7, 2007

✔ NPI 1083809552 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 · PA19082

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.

27700 MEDICAL CENTER RD, Mission Viejo, CA 92691

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Richard A. Timmerman Jr. P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 92691 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.

CHELSEA ZIMMERMAN

Nurse Practitioner (Acute Care)