1. Home
  2. Directory
  3. California
  4. Los Angeles
  5. Anesthesiology
  6. NPI Profile

ROBERT HANNUM III M.D.
NPI 1326400904
Anesthesiology in Los Angeles, CA

Active since March 23, 2016PECOS EnrolledAccepts Medicare Assignment
757 WESTWOOD PLZ STE 3325, LOS ANGELES, CA 90095(310) 825-9111 Get Directions Write a Review

NPPES record last updated: August 10, 2026. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Aug 10, 2026, Jun 29, 2020, Mar 23, 2016 (3 updates tracked since 2016).

About Robert Hannum Iii M.d. NPPES

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

ROBERT HANNUM III M.D. (NPI 1326400904) is an individual anesthesiology provider in Los Angeles, California, licensed in California (C208960) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS, is affiliated with Albany Medical Center Hospital, and maintains a secondary practice location in New York.

NPPES Registry Identity

NPI1326400904
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameROBERT HANNUM IIICredential: M.D.
Location Address757 WESTWOOD PLZ STE 3325Los Angeles, CA 90095-7043
Mailing Address5767 W Century Blvd Ste 400Los Angeles, CA 90045-5631
Phone(310) 825-9111
Sole ProprietorNo
Medical School CMSColumbia University College Of Physicians And SurgeonsGraduated 2016
Enumeration DateMarch 23, 2016
Last NPPES UpdateAugust 10, 20263 updates tracked since enumeration
NPPES CertifiedAugust 10, 2026
✔ NPI 1326400904 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · C208960
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.
757 WESTWOOD PLZ STE 3325, Los Angeles, CA 90095
Open in Google Maps ↗

Secondary Practice Location 1

Location 1622 W 168th St, PH5-133 StemNew York, NY 10032-3720 · Phone (212) 342-5525

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

Robert Hannum Iii 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 ID143566760
PECOS Enrollment IDI20210122001260
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

5

Medicare enrollment records show Robert Hannum reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The University Of California
Same address
Anesthesiology
757 WESTWOOD PLZ
Los Angeles, CA 90095
  • Reassigned Medicare billing, California enrollment
  • 295 clinicians in this Medicare group
NPI 1326096165 (310) 825-9111
Kotlyar Medical PC
2,463 mi
Anesthesiology
369 LEXINGTON AVE RM 800
New York, NY 10017
  • Reassigned Medicare billing, New York enrollment
  • 5 clinicians in this Medicare group
NPI 1205363454 (631) 264-2030
Trustees Of Columbia University In The City Of New York
2,464 mi
Surgery
622 W 168TH ST
New York, NY 10032
  • Reassigned Medicare billing, New York enrollment
  • 3,922 clinicians in this Medicare group
NPI 1508266347 (646) 317-7111
Albany Medical College
2,467 mi
Allergy & Immunology
47 NEW SCOTLAND AVE
Albany, NY 12208
  • Reassigned Medicare billing, New York enrollment
  • 1,640 clinicians in this Medicare group
NPI 1497921688 (518) 262-9600
Jamaica Anesthesiologist, PC
2,471 mi
Anesthesiology
8900 VAN WYCK EXPY
Jamaica, NY 11418
  • Reassigned Medicare billing, New York enrollment
  • 163 clinicians in this Medicare group
NPI 1508812892 (718) 206-6088

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 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.
31 services31 patients
Anesthesia for procedure on gallbladder, pancreas, or liver using an endoscope 00732
This procedure involves using an endoscope, a flexible tube with a light and camera, to examine or treat your gallbladder, pancreas, or liver. Anesthesia is administered to ensure you're comfortable and pain-free during the procedure.
13 services13 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Albany Medical Center Hospital

Acute Care Hospitals · Albany, NY
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330013
Location43 New Scotland Avenue, Mail Code 34Albany, NY 12208 · Albany County
Emergency services Birthing friendly

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.

MARIYA SVILIK MD
Anesthesiology
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (310) 267-8626
DR. BIJAN NAVIDI M.D.
Anesthesiology
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (310) 267-8626
DR. FREDERICK CONRAD LI M.D.
Anesthesiology (Pain Medicine)
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (310) 794-4494
LEO LUAN LI MD
Anesthesiology
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (310) 267-6629
ANDREW THOMAS SCALES DO
Anesthesiology
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (310) 267-8626
DR. SO HEE LEE DNAP
Nurse Anesthetist, Certified Registered
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (310) 825-0867
SHELLY ANDERSON CRNA
Nurse Anesthetist, Certified Registered
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (331) 026-7389
DR. SUNGSOO KIM MD, PHD
Anesthesiology
757 WESTWOOD PLZ STE 3325
LOS ANGELES, CA 90095
Los Angeles County (310) 267-8626

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 Robert Hannum's NPI number?

The NPI number for Robert Hannum is 1326400904. It was assigned to this individual provider in the NPPES registry on March 23, 2016.

Where is Robert Hannum located?

Robert Hannum practices at 757 Westwood Plz Ste 3325, Los Angeles, CA 90095. The listed phone number is (310) 825-9111.

What is Robert Hannum's specialty?

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

Is Robert Hannum enrolled in Medicare?

Yes. Robert Hannum 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 Robert Hannum's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Hannum reassigns Medicare benefits to 5 organizations: Regents Of The University Of California (Los Angeles, CA), Kotlyar Medical PC (New York, NY), Trustees Of Columbia University In The City Of New York (New York, NY), Albany Medical College (Albany, NY) and Jamaica Anesthesiologist, PC (Jamaica, NY). 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 Robert Hannum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Robert Hannum affiliated with any hospitals?

According to CMS data, Robert Hannum is affiliated with Albany Medical Center Hospital.

When was this NPI record last updated?

The NPPES record for Robert Hannum was last updated on August 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.