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DR. ANDREW WEI MD
NPI 1588055230
Anesthesiology in Pasadena, CA

Active since February 16, 2015PECOS EnrolledAccepts Medicare Assignment
100 W CALIFORNIA BLVD, PASADENA, CA 91105(626) 397-5000 Get Directions Write a Review

NPPES record last updated: October 17, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 16, 2024, Apr 1, 2024, Jul 1, 2021 and 3 more (6 updates tracked since 2016).

About Dr. Andrew Wei Md NPPES

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

DR. ANDREW WEI MD (NPI 1588055230) is an individual anesthesiology provider in Pasadena, California, licensed in California (A165729) and active in the NPI registry since February 2015. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Northwestern University Feinberg Medical School (2018).

NPPES Registry Identity

NPI1588055230
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameDR. ANDREW WEICredential: MD
Location Address100 W CALIFORNIA BLVDPasadena, CA 91105-3010
Mailing Address1602 S Marengo AveAlhambra, CA 91803-3006
Phone(626) 397-5000
Sole ProprietorNo
Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 2018
Enumeration DateFebruary 16, 2015
Last NPPES UpdateOctober 17, 20256 updates tracked since enumeration
NPPES CertifiedOctober 17, 2025
✔ NPI 1588055230 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A165729
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.
Also ListedPediatricsTaxonomy 208000000X · License A165729 (CA)
100 W CALIFORNIA BLVD, Pasadena, CA 91105
Open in Google Maps ↗

Secondary Practice Locations 2

Location 115031 Rinaldi StMission Hills, CA 91345-1207 · Phone (808) 551-7696
Location 2501 S Buena Vista StBurbank, CA 91505-4809 · Phone (808) 551-7696

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. Andrew Wei Md 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 ID7911316120
PECOS Enrollment IDI20240620003900
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 Andrew Wei reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Pacific Valley Medical Group
Same address
Anesthesiology
100 W CALIFORNIA BLVD
Pasadena, CA 91105
  • Reassigned Medicare billing, California enrollment
  • 214 clinicians in this Medicare group
NPI 1851312862 (626) 397-5000
Buena Vista Anesthesia Medical Group
10 mi
Anesthesiology
501 S BUENA VISTA ST
Burbank, CA 91505
  • Reassigned Medicare billing, California enrollment
  • 98 clinicians in this Medicare group
NPI 1366462293 (818) 843-5111

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.

SARAH STEPHENS NP
Nurse Practitioner (Acute Care)
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Los Angeles County (626) 397-8300
ROMELIA JALEH BATANG GARCIA RNFA
Registered Nurse (Registered Nurse First Assistant)
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Los Angeles County (626) 397-5012
DR. RICHARD A. REED MEDICAL DOCTOR
Radiology (Diagnostic Radiology)
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Los Angeles County (626) 397-5139
DR. HENRY LEVENSON M.D.
Pain Medicine (Pain Medicine)
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Los Angeles County (626) 256-6010
PASADENA HOSPITAL ASSOCIATION, LTD.
Rehabilitation Unit
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Los Angeles County (626) 397-5555
ANIL K HANUMAN D,O.
Hospitalist
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Los Angeles County (626) 397-8300
DR. NICHOLAS WITHROW GRECO M.D.
Emergency Medicine
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Los Angeles County (626) 397-5112
DR. MINDY EVE TITTIGER M.D.
Internal Medicine
100 W CALIFORNIA BLVD
PASADENA, CA 91105
Los Angeles County (626) 352-1444

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 Andrew Wei's NPI number?

The NPI number for Andrew Wei is 1588055230. It was assigned to this individual provider in the NPPES registry on February 16, 2015.

Where is Andrew Wei located?

Andrew Wei practices at 100 W California Blvd, Pasadena, CA 91105. The listed phone number is (626) 397-5000.

What is Andrew Wei's specialty?

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

Is Andrew Wei enrolled in Medicare?

Yes. Andrew Wei 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 Andrew Wei's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Wei reassigns Medicare benefits to 2 organizations: Pacific Valley Medical Group (Pasadena, CA) and Buena Vista Anesthesia Medical Group (Burbank, 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 Andrew Wei'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 Andrew Wei was last updated on October 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.