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DR. STEPHEN J. REIDY M.D.
NPI 1417973124
Anesthesiology in Thousand Oaks, CA

Active since July 14, 2006PECOS EnrolledAccepts Medicare Assignment
215 W JANSS RD, THOUSAND OAKS, CA 91360(805) 370-4521 Get Directions Write a Review

NPPES record last updated: April 1, 2008. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Stephen J. Reidy M.d. NPPES

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

DR. STEPHEN J. REIDY M.D. (NPI 1417973124) is an individual anesthesiology provider in Thousand Oaks, California, licensed in California (G81452) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Georgetown University School Of Medicine (1993).

NPPES Registry Identity

NPI1417973124
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. STEPHEN J. REIDYCredential: M.D.
Location Address215 W JANSS RDThousand Oaks, CA 91360-1847
Mailing AddressPo Box 10076Van Nuys, CA 91410-0076 · (805) 578-8300 · Fax (805) 578-8950
Phone(805) 370-4521
Sole ProprietorNo
Medical School CMSGeorgetown University School Of MedicineGraduated 1993
Enumeration DateJuly 14, 2006
Last NPPES UpdateApril 1, 2008
✔ NPI 1417973124 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · G81452
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.
215 W JANSS RD, Thousand Oaks, CA 91360
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Other Identifiers 4

Medicaid00G814521CA
Medicare PINWG84152DCA
Medicare PINW20573CA
Medicare PING81452CCA

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. Stephen J. Reidy 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 ID4587564703
PECOS Enrollment IDI20191011002676
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

4

Medicare enrollment records show Stephen Reidy reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Conejo Los Robles Anesthesiology Medical Group, Inc.
Same address
Anesthesiology
215 W JANSS RD
Thousand Oaks, CA 91360
  • Reassigned Medicare billing, California enrollment
  • 53 clinicians in this Medicare group
NPI 1821171729 (805) 370-4521
Stephen Reidy, M.D., Inc.
Same address
Anesthesiology
215 W JANSS RD
Thousand Oaks, CA 91360
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Stephen Reidy MD Inc
NPI 1992738348 (805) 370-4521
Hilo Benioff Medical Center
2,431 mi
Anesthesiology
1190 WAIANUENUE AVE
Hilo, HI 96720
  • Reassigned Medicare billing, Hawaii enrollment
  • 37 clinicians in this Medicare group
NPI 1235981614 (808) 932-3000
The Anesthesia Medical Group Inc
2,528 mi
Anesthesiology
1360 S BERETANIA ST, SUITE 215
Honolulu, HI 96814
  • Reassigned Medicare billing, Hawaii enrollment
  • 66 clinicians in this Medicare group
NPI 1356362990 (808) 532-3711

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.

LOS ROBLES RADIOLOGIC ASSOCIATES
Radiology (Diagnostic Radiology)
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (054) 972-7278
DR. NUSAYBA MANAL AHMED MD
Internal Medicine
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (805) 852-9229
DANIELLE ASHLEY SHERMAN
Physician Assistant
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (805) 497-2727
MARIA DUBOVITSKAYA MD
Student in an Organized Health Care Education/Training Program
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (805) 852-9229
SUKHWINDER SINGH DHILLON
Student in an Organized Health Care Education/Training Program
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (805) 852-9229
ALEEN SISAKIAN MD
Student in an Organized Health Care Education/Training Program
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (805) 852-9229
YASH PATIL DO
Student in an Organized Health Care Education/Training Program
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (805) 852-9229
DR. ERNA M. KWONG M.D.
Anesthesiology
215 W JANSS RD
THOUSAND OAKS, CA 91360
Ventura County (805) 497-2727

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 Stephen Reidy's NPI number?

The NPI number for Stephen Reidy is 1417973124. It was assigned to this individual provider in the NPPES registry on July 14, 2006.

Where is Stephen Reidy located?

Stephen Reidy practices at 215 W Janss Rd, Thousand Oaks, CA 91360. The listed phone number is (805) 370-4521.

What is Stephen Reidy's specialty?

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

Is Stephen Reidy enrolled in Medicare?

Yes. Stephen Reidy 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 Stephen Reidy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Reidy reassigns Medicare benefits to 4 organizations: Conejo Los Robles Anesthesiology Medical Group, Inc. (Thousand Oaks, CA), Stephen Reidy, M.D., Inc. (Thousand Oaks, CA), Hilo Benioff Medical Center (Hilo, HI) and The Anesthesia Medical Group Inc (Honolulu, HI). 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 Stephen Reidy'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 Stephen Reidy was last updated on April 1, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.