LOUIS CHAE-WOOK LIM MD
NPI 1952353831
Anesthesiology in Fullerton, CA

Q: What is Louis Lim's NPI number?

The NPI number for Louis Lim is 1952353831. It was assigned to this individual provider in the NPPES registry on May 17, 2006.

Q: What is Louis Lim'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 Louis Lim was last updated on February 19, 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 17, 2006PECOS EnrolledAccepts Medicare Assignment

101 E VALENCIA MESA DR, FULLERTON, CA 92835(714) 871-3280(714) 447-6490 Get Directions Write a Review

NPPES record last updated: February 19, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Louis Chae-wook Lim Md NPPES

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

LOUIS CHAE-WOOK LIM MD (NPI 1952353831) is an individual anesthesiology provider in Fullerton, California, licensed in California (A80343) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of Loma Linda University School Of Medicine (2000).

NPPES Registry Identity

NPI1952353831

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameLOUIS CHAE-WOOK LIMCredential: MD

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) 447-6490

Sole ProprietorNo

Medical School CMSLoma Linda University School Of MedicineGraduated 2000

Enumeration DateMay 17, 2006

Last NPPES UpdateFebruary 19, 2015

✔ NPI 1952353831 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · A80343

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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Other Identifiers 3

Medicare ID-Type UnspecifiedWA80343ACA

Medicaid00A803430CA

Medicare UPINI18560

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

Louis Chae-wook Lim 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 ID8921069311

PECOS Enrollment IDI20041019001382

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 Louis Lim 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.

36 services35 patients

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.

25 services25 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).

13 services13 patients

Anesthesia for procedure on small and large bowel using an endoscope 00813

Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.

11 services11 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.

PIUS J. KIM M.D.

Internal Medicine