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DR. SHAWN THOMAS M.D.
NPI 1245674068
Anesthesiology in Orange, CA

Active since April 23, 2013PECOS EnrolledAccepts Medicare Assignment
333 CITY BLVD W STE 2150, ORANGE, CA 92868(714) 456-5835 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 21, 2022, Sep 12, 2017 (2 updates tracked since 2017).

About Dr. Shawn Thomas M.d. NPPES

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

DR. SHAWN THOMAS M.D. (NPI 1245674068) is an individual anesthesiology provider in Orange, California, licensed in California (1245674068) and active in the NPI registry since April 2013. He is enrolled in Medicare PECOS, maintains a secondary practice location in Boston, and is a graduate of Other (2013).

NPPES Registry Identity

NPI1245674068
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. SHAWN THOMASCredential: M.D.
Location Address333 CITY BLVD W STE 2150Orange, CA 92868-5920
Mailing Address333 City Blvd W Ste 2150Orange, CA 92868-5920 · (714) 456-5835
Phone(714) 456-5835
Sole ProprietorYes
Medical School CMSOtherGraduated 2013
Enumeration DateApril 23, 2013
Last NPPES UpdateJuly 21, 20222 updates tracked since enumeration
NPPES CertifiedOctober 29, 2021
✔ NPI 1245674068 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · 1245674068
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.
333 CITY BLVD W STE 2150, Orange, CA 92868
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Secondary Practice Location 1

Location 11 Boston Medical Ctr PlBoston, MA 02118-2908 · Phone (617) 638-6975

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. Shawn Thomas 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 ID3274750369
PECOS Enrollment IDI20170519001191
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 Shawn Thomas reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The University Of
0.3 mi
Anesthesiology
101 THE CITY DR SOUTH
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 420 clinicians in this Medicare group
NPI 1487602546 (714) 456-8068
Southern California Permanente Medical Group
6.4 mi
Health Maintenance Organization
441 N LAKEVIEW AVE
Anaheim, CA 92807
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1952333460 (714) 279-4000

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.

VIVEK GULATI
Anesthesiology
333 CITY BLVD W STE 2150
ORANGE, CA 92868
Orange County (714) 456-6661
JASON JOHN COSMAN MD
Student in an Organized Health Care Education/Training Program
333 CITY BLVD W STE 2150
ORANGE, CA 92868
Orange County (714) 456-7890
SHALINI NAGARAJ
Anesthesiology
333 CITY BLVD W STE 2150
ORANGE, CA 92868
Orange County (714) 456-6661
VERONIKA ANUFREICHIK
Anesthesiology
333 CITY BLVD W STE 2150
ORANGE, CA 92868
Orange County (714) 456-6661
DR. ANDREW TAN MD
Anesthesiology
333 CITY BLVD W STE 2150
ORANGE, CA 92868
Orange County (714) 456-6661
SCOTT ERWIN MD
Anesthesiology
333 CITY BLVD W STE 2150
ORANGE, CA 92868
Orange County (916) 628-9169
ASHVIN ANIL MEHRA MD
Anesthesiology
333 CITY BLVD W STE 2150
ORANGE, CA 92868
Orange County (818) 530-8792
BRENT G. YEUNG M.D.
Anesthesiology (Pain Medicine)
333 CITY BLVD W STE 2150
ORANGE, CA 92868
Orange County (714) 456-5835

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 Shawn Thomas's NPI number?

The NPI number for Shawn Thomas is 1245674068. It was assigned to this individual provider in the NPPES registry on April 23, 2013.

Where is Shawn Thomas located?

Shawn Thomas practices at 333 City Blvd W Ste 2150, Orange, CA 92868. The listed phone number is (714) 456-5835.

What is Shawn Thomas's specialty?

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

Is Shawn Thomas enrolled in Medicare?

Yes. Shawn Thomas 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 Shawn Thomas's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Shawn Thomas reassigns Medicare benefits to 2 organizations: Regents Of The University Of (Orange, CA) and Southern California Permanente Medical Group (Anaheim, 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 Shawn Thomas'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 Shawn Thomas was last updated on July 21, 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.