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DR. PEYMAN KEYASHIAN
NPI 1639332786
Anesthesiology in Martinez, CA

Active since July 09, 2008PECOS Enrolled
2500 ALHAMBRA AVE, MARTINEZ, CA 94553(925) 370-5000 Get Directions Write a Review

NPPES record last updated: May 6, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Peyman Keyashian NPPES

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

DR. PEYMAN KEYASHIAN (NPI 1639332786) is an individual anesthesiology provider in Martinez, California, licensed in California (A121564) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1639332786
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. PEYMAN KEYASHIAN
Location Address2500 ALHAMBRA AVEMartinez, CA 94553-3156
Mailing Address1440 Emmons Canyon DrAlamo, CA 94507-2850 · (530) 219-3061
Phone(925) 370-5000
Sole ProprietorNo
Enumeration DateJuly 9, 2008
Last NPPES UpdateMay 6, 2026
NPPES CertifiedMay 6, 2026
✔ NPI 1639332786 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in CA · A121564✔ Licensed in IL · 125055507
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
2500 ALHAMBRA AVE, Martinez, CA 94553
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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. Peyman Keyashian 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

2

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

Contra Costa County
Same address
General Acute Care Hospital
2500 ALHAMBRA AVE
Martinez, CA 94553
  • Reassigned Medicare billing, California enrollment
  • 530 clinicians in this Medicare group
NPI 1386719086 (925) 370-5955
Cep America - Anesthesia, PC
8.2 mi
Anesthesiology
1601 YGNACIO VALLEY RD
Walnut Creek, CA 94598
  • Reassigned Medicare billing, California enrollment
  • 833 clinicians in this Medicare group
NPI 1790401438 (925) 939-3000

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

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.

JOHN S HAWKINS
Family Medicine
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5200
HYAEJEEN JEON
Student in an Organized Health Care Education/Training Program
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5117
JUSTIN RATEL
Registered Nurse
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5705
RONALD POWER DDS
Dentist
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5110
DR. SARA JOSEPHINE RICHEY-LUCERO M.D.
General Practice
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5182
CHARLOTTE STANDEFER
Family Medicine
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5110
RICHARD NAGLE
Surgery
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5110
CHRISTIAN MICHAEL EISERT MD, MPH
Otolaryngology
2500 ALHAMBRA AVE
MARTINEZ, CA 94553
Contra Costa County (925) 370-5000

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 Peyman Keyashian's NPI number?

The NPI number for Peyman Keyashian is 1639332786. It was assigned to this individual provider in the NPPES registry on July 9, 2008.

Where is Peyman Keyashian located?

Peyman Keyashian practices at 2500 Alhambra Ave, Martinez, CA 94553. The listed phone number is (925) 370-5000.

What is Peyman Keyashian's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Peyman Keyashian enrolled in Medicare?

Yes. Peyman Keyashian is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Peyman Keyashian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Peyman Keyashian reassigns Medicare benefits to 2 organizations: Contra Costa County (Martinez, CA) and Cep America - Anesthesia, PC (Walnut Creek, 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 Peyman Keyashian'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 Peyman Keyashian was last updated on May 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.