DR. CHRISTOPHER EVANS
NPI 1891990628
Psychologist - Clinical in Santa Rosa, CA

Q: What is Christopher Evans's NPI number?

The NPI number for Christopher Evans is 1891990628. It was assigned to this individual provider in the NPPES registry on June 20, 2007.

Q: What is Christopher Evans's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Christopher Evans was last updated on January 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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 June 20, 2007PECOS Enrolled

3554 ROUND BARN BLVD, 100, SANTA ROSA, CA 95403(707) 571-3835 Get Directions Write a Review

NPPES record last updated: January 3, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Dr. Christopher Evans NPPES

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

DR. CHRISTOPHER EVANS (NPI 1891990628) is an individual clinical provider in Santa Rosa, California, licensed in California (PSY 24324) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1891990628

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameDR. CHRISTOPHER EVANS

Location Address3554 ROUND BARN BLVD, 100Santa Rosa, CA 95403-0929

Mailing Address401 Bicentennial WaySanta Rosa, CA 95403-2149 · (707) 571-3835

Phone(707) 571-3835

Sole ProprietorNo

Enumeration DateJune 20, 2007

Last NPPES UpdateJanuary 3, 2022

✔ NPI 1891990628 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in CA · PSY 24324

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

3554 ROUND BARN BLVD, Santa Rosa, CA 95403

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Christopher Evans 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.

Medicare Billing Reassignment

Medicare enrollment records show Christopher Evans reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc

35 mi

Internal Medicine

975 SERENO DRIVE
Vallejo, CA 94589

Reassigned Medicare billing, California enrollment
20,078 clinicians in this Medicare group

NPI 1336222397 (707) 651-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95403 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

$187.01 typical visit price

range $63.04 – $187.01

Typical copayment $46.75 (range $15.76 – $46.75)

Most-billed visit code 99205

Established Patient

$109.88 typical visit price

range $21.02 – $153.40

Typical copayment $27.47 (range $5.25 – $38.35)

Most-billed visit code 99214

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.

DR. JAMES NICHOLAS WORLEDGE M.D.

Psychiatry & Neurology (Psychiatry)

3554 ROUND BARN BLVD
SANTA ROSA, CA 95403

Sonoma County (707) 653-3639

MR. RAYMOND SING WONG PHARM.D

Pharmacist

3554 ROUND BARN BLVD
SANTA ROSA, CA 95403

Sonoma County (707) 566-5929

MRS. JULIE FRANCES FENNIMORE PSY.D

Psychologist

3554 ROUND BARN BLVD, 100
SANTA ROSA, CA 95403

Sonoma County (707) 571-3729

MS. LAINE HAYNES LCSW

Social Worker (Clinical)

3554 ROUND BARN BLVD, SUITE 100
SANTA ROSA, CA 95403

Sonoma County (707) 571-3884

GRAHAM ELLIOT ROME COOPER PHD

Psychologist

3554 ROUND BARN BLVD
SANTA ROSA, CA 95403

Sonoma County (707) 571-3778

RAMAN GOSWAMI PSYD

Psychologist

3554 ROUND BARN BLVD
SANTA ROSA, CA 95403

Sonoma County (707) 571-3778

ANDREW WEISSKOFF LCSW

Social Worker (Clinical)

3554 ROUND BARN BLVD
SANTA ROSA, CA 95403

Sonoma County (707) 571-3813

DR. CHRISTINE L. BILBREY M.D.

Psychiatry & Neurology (Psychiatry)

3554 ROUND BARN BLVD
SANTA ROSA, CA 95403

Sonoma County (707) 571-3778

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Christopher Evans's NPI number?

The NPI number for Christopher Evans is 1891990628. It was assigned to this individual provider in the NPPES registry on June 20, 2007.

Where is Christopher Evans located?

Christopher Evans practices at 3554 Round Barn Blvd 100, Santa Rosa, CA 95403. The listed phone number is (707) 571-3835.

What is Christopher Evans's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Christopher Evans enrolled in Medicare?

Yes. Christopher Evans is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Christopher Evans's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Evans reassigns Medicare benefits to Permanente Medical Group Inc (Vallejo, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Christopher Evans's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Christopher Evans was last updated on January 3, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.