WARREN DAVIS M.D.
NPI 1235422676
Anesthesiology in Fullerton, CA

Q: What is Warren Davis's NPI number?

The NPI number for Warren Davis is 1235422676. It was assigned to this individual provider in the NPPES registry on May 18, 2011.

Q: What is Warren Davis's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Warren Davis was last updated on July 22, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.

Active since May 18, 2011PECOS EnrolledAccepts Medicare Assignment

101 E VALENCIA MESA DR, FULLERTON, CA 92835(714) 871-3280(714) 447-6411 Get Directions Write a Review

NPPES record last updated: July 22, 2015. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Warren Davis M.d. NPPES

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

WARREN DAVIS M.D. (NPI 1235422676) is an individual anesthesiology provider in Fullerton, California, licensed in California (A126164) and active in the NPI registry since May 2011. He is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (2011).

NPPES Registry Identity

NPI1235422676

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameWARREN DAVISCredential: M.D.

Location Address101 E VALENCIA MESA DRFullerton, CA 92835-3809

Mailing AddressPo Box 1628Orange, CA 92856-0628 · (714) 560-1580 · Fax (714) 560-1585

Phone(714) 871-3280

Fax(714) 447-6411

Sole ProprietorNo

Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 2011

Enumeration DateMay 18, 2011

Last NPPES UpdateJuly 22, 2015

✔ NPI 1235422676 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · A126164

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.

101 E VALENCIA MESA DR, Fullerton, CA 92835

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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 and accepts Medicare assignment

Warren Davis 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 ID9537472733

PECOS Enrollment IDI20150716002727

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

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

Newport Harbor Anesthesia Consultants Medical Group Inc

19 mi

Anesthesiology

ONE HOAG DRIVE, DEPARTMENT OF ANESTHESIOLOGY
Newport Beach, CA 92663

Reassigned Medicare billing, California enrollment
110 clinicians in this Medicare group

NPI 1205885357 (949) 764-6954

Allied Anesthesia Medical Group Inc

Reassigned Medicare billing, California enrollment
420 clinicians in this Medicare group

No phone listed

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

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

26 services25 patients

Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) 64447

This procedure involves injecting a numbing agent and/or steroid into a nerve in your thigh. It's done to alleviate pain or inflammation. A needle will be carefully positioned near the nerve, and the medicine will be administered.

22 services22 patients

Anesthesia for procedure for total knee joint replacement 01402

Anesthesia for a total knee joint replacement numbs your body to eliminate pain during surgery. This could be general anesthesia where you're unconscious, or regional anesthesia where only the leg is numb. It's administered by a specialist, ensuring safety and comfort.

20 services18 patients

Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) 64415

This procedure involves injecting a numbing agent or steroid into your arm's nerve bundle. It's done to manage pain or inflammation. The injection helps block nerve signals that cause discomfort, providing relief. It's a safe, common procedure.

15 services15 patients

Anesthesia for total hip replacement 01214

Anesthesia for total hip replacement is a medical service where medication is given to eliminate pain during surgery. Two types are commonly used: general anesthesia, making you unconscious, or spinal anesthesia, numbing the lower body. The choice depends on your health and your doctor's recommendation.

14 services14 patients

Anesthesia for other procedure or exam of knee joint using an endoscope 01400

Anesthesia for a knee joint procedure or exam using an endoscope involves administering medication to numb the area or put you in a sleep-like state. This ensures you don't feel pain during the procedure. The endoscope, a thin tube with a camera, allows the doctor to view the knee joint internally without making large incisions.

13 services13 patients

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.

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