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DR. TIMOTHY ALAN WEAVER JR. M.D.
NPI 1619269883
Anesthesiology in Orange, CA

Active since May 06, 2011PECOS Enrolled
1100 W STEWART DR, ORANGE, CA 92868(714) 633-9111(714) 744-8695 Get Directions Write a Review

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

About Dr. Timothy Alan Weaver Jr. M.d. NPPES

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

DR. TIMOTHY ALAN WEAVER JR. M.D. (NPI 1619269883) is an individual anesthesiology provider in Orange, California, licensed in California (A125727) and active in the NPI registry since May 2011. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1619269883
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. TIMOTHY ALAN WEAVER JR.Credential: M.D.
Location Address1100 W STEWART DROrange, CA 92868-3849
Mailing AddressPo Box 1628Orange, CA 92856-0628 · (714) 560-1580 · Fax (714) 560-1585
Phone(714) 633-9111
Fax(714) 744-8695
Sole ProprietorNo
Enumeration DateMay 6, 2011
Last NPPES UpdateJuly 22, 2015
✔ NPI 1619269883 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A125727
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.
1100 W STEWART DR, Orange, CA 92868
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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. Timothy Alan Weaver Jr. M.d. 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 Reassignment

Medicare enrollment records show Timothy Weaver reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

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 4

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 lens surgery 00142
Anesthesia for lens surgery involves administering medication to numb the eye area, ensuring you feel no pain during the procedure. This can be a local anesthetic (numbing only the eye area) or general (where you're asleep). It helps make the surgery comfortable and stress-free.
450 services305 patients
Anesthesia for other procedure on eye 00140
Anesthesia for an eye procedure involves administering medication to numb your eye and surrounding area, ensuring you feel no pain during the operation. It can be local (only the eye area) or general (whole body). It's safe and helps make the procedure comfortable.
41 services36 patients
Anesthesia for retinal surgery 00145
Anesthesia for retinal surgery involves using medications to numb your eye and surrounding area. This prevents pain and discomfort during the procedure. You may also receive medication to help you relax. The anesthesia can be local (just your eye) or general (you're asleep).
33 services30 patients
Anesthesia for procedure on eyelid 00103
Anesthesia for an eyelid procedure helps ensure comfort and painlessness during the operation. It's typically a local anesthetic, applied to numb your eyelid and surrounding area. You'll likely be awake but won't feel any discomfort. It's a safe, routine part of many eye procedures.
24 services24 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.

OC PROGRESSIVE RECOVERY INC
Psychiatry & Neurology (Psychiatry)
1100 W STEWART DR, ER DEPARTMENT
ORANGE, CA 92868
Orange County (714) 633-9111
IAN CHAIT M.D.
Anesthesiology
1100 W STEWART DR
ORANGE, CA 92868
Orange County (714) 633-9111
ROGER YASUO ARAKAKI M.D.
Anesthesiology
1100 W STEWART DR
ORANGE, CA 92868
Orange County (714) 633-9111
DR. JUSTIN SCOTT LEE M.D.
Radiology (Diagnostic Radiology)
1100 W STEWART DR
ORANGE, CA 92868
Orange County (714) 771-8171
DR. INNA SHNITER M.D.
Emergency Medicine
1100 W STEWART DR
ORANGE, CA 92868
Orange County (714) 771-8113
FRANCIS MICHAEL SWEENY M.D.
Anesthesiology
1100 W STEWART DR
ORANGE, CA 92868
Orange County (714) 633-9111
DR. WILLIAM ROBERT TRUONG PHARM.D.
Pharmacist
1100 W STEWART DR
ORANGE, CA 92868
Orange County (714) 771-8000
DR. CLAUDIA PATRICIA KLEIN MD
Anesthesiology
1100 W STEWART DR
ORANGE, CA 92868
Orange County (714) 633-9111

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 Timothy Weaver's NPI number?

The NPI number for Timothy Weaver is 1619269883. It was assigned to this individual provider in the NPPES registry on May 6, 2011.

Where is Timothy Weaver located?

Timothy Weaver practices at 1100 W Stewart Dr, Orange, CA 92868. The listed phone number is (714) 633-9111.

What is Timothy Weaver's specialty?

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

Is Timothy Weaver enrolled in Medicare?

Yes. Timothy Weaver is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Timothy Weaver's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Weaver reassigns Medicare benefits to Allied Anesthesia Medical Group Inc (CA). The 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 Timothy Weaver'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 Timothy Weaver 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.