DR. CLAYTON ABBOTT BARNES MARTINEZ MD, MPH
NPI 1922453513
Psychiatry & Neurology - Psychiatry in Emeryville, CA

Active since May 02, 2016PECOS Enrolled
2100 POWELL ST, SUITE 400, EMERYVILLE, CA 94608(510) 350-2600 Get Directions Write a Review

NPPES record last updated: November 19, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 19, 2024, Apr 9, 2023, Mar 15, 2021 and 1 more (4 updates tracked since 2018).

About Dr. Clayton Abbott Barnes Martinez Md, Mph NPPES

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

DR. CLAYTON ABBOTT BARNES MARTINEZ MD, MPH (NPI 1922453513) is an individual psychiatry provider in Emeryville, California, licensed in California (A150795) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1922453513
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDR. CLAYTON ABBOTT BARNES MARTINEZCredential: MD, MPH
Location Address2100 POWELL ST, SUITE 400Emeryville, CA 94608
Mailing Address10601 Tierrasanta Blvd, Ste G Pmb #122San Diego, CA 92124
Sole ProprietorNo
Enumeration DateMay 2, 2016
Last NPPES UpdateNovember 19, 20244 updates tracked since enumeration
NPPES CertifiedNovember 19, 2024
✔ NPI 1922453513 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · A150795
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.
2100 POWELL ST, Emeryville, CA 94608

Secondary Practice Locations 2

Location 1265 S Anita Dr Ste 102-104Orange, CA 92868-3355 · Phone (714) 410-3500
Location 24411 E Kings Canyon RdFresno, CA 93702-3604 · Phone (559) 453-1008

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Clayton Abbott Barnes Martinez Md, Mph 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 Reassignments

6

Medicare enrollment records show Clayton Barnes Martinez reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Psychiatry
900 HYDE ST
San Francisco, CA 94109
  • Reassigned Medicare billing, California enrollment
  • 208 clinicians in this Medicare group
Community/Behavioral Health
375 89TH ST
Daly City, CA 94015
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: County Of San Mateo
  • Also billed through NPI 1831268580 (California)
  • 597 clinicians in this Medicare group
General Acute Care Hospital
726 4TH ST
Marysville, CA 95901
  • Reassigned Medicare billing, California enrollment
  • 110 clinicians in this Medicare group
General Acute Care Hospital
1303 E HERNDON AVE
Fresno, CA 93720
  • Reassigned Medicare billing, California enrollment
  • 181 clinicians in this Medicare group
Cardiovascular Disease
73723 20TH ST. WEST
Lancaster, CA 93534
  • Reassigned Medicare billing, California enrollment
  • 840 clinicians in this Medicare group
Geriatric Medicine
2810 CAMINO DEL RIO S, STE 102
San Diego, CA 92108
  • Reassigned Medicare billing, California enrollment
  • 98 clinicians in this Medicare group

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 94608 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
$202.35 typical visit price
range $69.00 – $202.35
Typical copayment $50.58 (range $17.25 – $50.58)
Most-billed visit code 99205
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
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.

Internal Medicine
2100 POWELL ST, STE 900
EMERYVILLE, CA 94608
Physician Assistant
2100 POWELL ST, SUITE 900
EMERYVILLE, CA 94608
Nurse Practitioner
2100 POWELL ST, SUITE 900
EMERYVILLE, CA 94608
Nurse Practitioner
2100 POWELL ST
EMERYVILLE, CA 94608
Physician Assistant
2100 POWELL ST, SUITE 920
EMERYVILLE, CA 94608
Emergency Medicine
2100 POWELL ST, SUITE 900
EMERYVILLE, CA 94608
Emergency Medicine
2100 POWELL ST, SUITE 900
EMERYVILLE, CA 94608
Physician Assistant
2100 POWELL ST
EMERYVILLE, CA 94608

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 Clayton Barnes Martinez's NPI number?

The NPI number for Clayton Barnes Martinez is 1922453513. It was assigned to this individual provider in the NPPES registry on May 2, 2016.

Where is Clayton Barnes Martinez located?

Clayton Barnes Martinez practices at 2100 Powell St Suite 400, Emeryville, CA 94608. The listed phone number is (510) 350-2600.

What is Clayton Barnes Martinez's specialty?

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

Is Clayton Barnes Martinez enrolled in Medicare?

Yes. Clayton Barnes Martinez is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Clayton Barnes Martinez's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Clayton Barnes Martinez reassigns Medicare benefits to 6 organizations: Cep America - Psychiatry PC (San Francisco, CA), San Mateo County (Daly City, CA), Rideout Memorial Hospital (Marysville, CA), Saint Agnes Medical Center (Fresno, CA), Pih Health Physicians (Lancaster, CA) and 1 more organization, listed in the Medicare section above. 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 Clayton Barnes Martinez'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 Clayton Barnes Martinez was last updated on November 19, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.