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DR. CHRISTOPHER BRIAN DUNHAM M.D.
NPI 1639193659
Psychiatry & Neurology - Psychiatry in Chico, CA

Active since July 26, 2006PECOS EnrolledAccepts Medicare Assignment
560 COHASSET RD STE 175, CHICO, CA 95926(530) 891-2810 Get Directions Write a Review

NPPES record last updated: July 31, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Christopher Brian Dunham M.d. NPPES

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

DR. CHRISTOPHER BRIAN DUNHAM M.D. (NPI 1639193659) is an individual psychiatry provider in Chico, California, licensed in California (G83339) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Eastern Virginia Medical School (1988).

NPPES Registry Identity

NPI1639193659
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. CHRISTOPHER BRIAN DUNHAMCredential: M.D.
Location Address560 COHASSET RD STE 175Chico, CA 95926-2460
Mailing Address560 Cohasset Rd Ste 175Chico, CA 95926-2460 · (530) 891-2810
Phone(530) 891-2810
Sole ProprietorYes
Medical School CMSEastern Virginia Medical SchoolGraduated 1988
Enumeration DateJuly 26, 2006
Last NPPES UpdateJuly 31, 2025
NPPES CertifiedJuly 31, 2025
✔ NPI 1639193659 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
Licenses✔ Licensed in CA · G83339✔ Licensed in PA · MD042185L✔ Licensed in NC · 2013-01433
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
560 COHASSET RD STE 175, Chico, CA 95926
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Other Identifiers 3

OtherG83339CA · California Medical License Number
OtherMD042185LPA · Pennsylvania Medical License
Other2013-01433NC · North Carolina Medical License 2013-01433

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Christopher Brian Dunham M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID5395633945
PECOS Enrollment IDI20040305001157
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 Reassignments

2

Medicare enrollment records show Christopher Dunham reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

County Of Butte
Same address
Adult Mental Health
560 COHASSET ROAD, SUITE 175
Chico, CA 95926
  • Reassigned Medicare billing, California enrollment
  • 109 clinicians in this Medicare group
NPI 1578623583 (530) 891-2784
County Of Santa Cruz
191 mi
Clinic/Center
1080 EMELINE AVE
Santa Cruz, CA 95060
  • Reassigned Medicare billing, California enrollment
  • 49 clinicians in this Medicare group
NPI 1659315430 (831) 454-4000

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 95926 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
$176.60 typical visit price
range $58.87 – $176.60
Typical copayment $44.15 (range $14.71 – $44.15)
Most-billed visit code 99205
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
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.

DENISE MARIE ATKINSON
Registered Nurse
560 COHASSET RD STE 175
CHICO, CA 95926
Butte County (530) 552-3553
ROSEMARIE DOHERTY
Registered Nurse (Psychiatric/Mental Health)
560 COHASSET RD STE 175
CHICO, CA 95926
Butte County (530) 891-2810
MELODY PRICE
Peer Specialist
560 COHASSET RD STE 175
CHICO, CA 95926
Butte County (530) 891-2784
MS. KAITLYN MCKENNA WEST
Counselor (Mental Health)
560 COHASSET RD STE 175
CHICO, CA 95926
Butte County (530) 891-2784
MS. CANDICE DEANEE KING
Licensed Psychiatric Technician
560 COHASSET RD STE 175
CHICO, CA 95926
Butte County (530) 891-2784
ALISHIA FERRIS ACSW
Counselor (Mental Health)
560 COHASSET RD STE 175
CHICO, CA 95926
Butte County (530) 552-3584
CHRISTA HELEN TAYLOR LCSW
Social Worker (Clinical)
560 COHASSET RD STE 175, SUITE 175
CHICO, CA 95926
Butte County (530) 891-2964
MR. JOSEPH LOWELL ROGERS
Counselor (Mental Health)
560 COHASSET RD STE 175
CHICO, CA 95926
Butte County (530) 891-2784

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 Dunham's NPI number?

The NPI number for Christopher Dunham is 1639193659. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Where is Christopher Dunham located?

Christopher Dunham practices at 560 Cohasset Rd Ste 175, Chico, CA 95926. The listed phone number is (530) 891-2810.

What is Christopher Dunham's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Christopher Dunham enrolled in Medicare?

Yes. Christopher Dunham is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Christopher Dunham's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Dunham reassigns Medicare benefits to 2 organizations: County Of Butte (Chico, CA) and County Of Santa Cruz (Santa Cruz, CA). Each 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 Dunham'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 Dunham was last updated on July 31, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.