1. Home
  2. Directory
  3. California
  4. Santa Monica
  5. Internal Medicine
  6. NPI Profile

ANDREA KHUE-TU NGUYEN MD
NPI 1417698929
Internal Medicine - Sleep Medicine in Santa Monica, CA

Active since April 06, 2022PECOS Enrolled
1223 16TH ST STE 3400, SANTA MONICA, CA 90404(310) 449-0939 Get Directions Write a Review

NPPES record last updated: August 24, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 24, 2026, Jun 3, 2025, Apr 6, 2022 (3 updates tracked since 2022).

About Andrea Khue-tu Nguyen Md NPPES

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

ANDREA KHUE-TU NGUYEN MD (NPI 1417698929) is an individual sleep medicine provider in Santa Monica, California, licensed in California (A203772) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS, maintains a secondary practice location in Porter Ranch, and is a graduate of Texas Tech University Health Science Center School Of Medicine (2022).

NPPES Registry Identity

NPI1417698929
Entity TypeIndividualFemale
Primary Taxonomy207RS0012X
Provider Legal NameANDREA KHUE-TU NGUYENCredential: MD
Location Address1223 16TH ST STE 3400Santa Monica, CA 90404-1279
Mailing Address5767 W Century Blvd Ste 400Los Angeles, CA 90045-5631 · (310) 301-8707
Phone(310) 449-0939
Sole ProprietorNo
Medical School CMSTexas Tech University Health Science Center School Of MedicineGraduated 2022
Enumeration DateApril 6, 2022
Last NPPES UpdateAugust 24, 20263 updates tracked since enumeration
NPPES CertifiedAugust 24, 2026
✔ NPI 1417698929 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RS0012X
License✔ Licensed in CA · A203772
Definition
An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.
1223 16TH ST STE 3400, Santa Monica, CA 90404
Open in Google Maps ↗

Secondary Practice Location 1

Location 119950 Rinaldi St Ste 300Porter Ranch, CA 91326-4254 · Phone (818) 271-2400

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Andrea Khue-tu Nguyen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8820477540
PECOS Enrollment IDI20260717004171
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 Andrea Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

The Regents Of The University Of California
3.9 mi
Internal Medicine
200 MEDICAL PLAZA, SUITE 365,530,420,250,120,214
Los Angeles, CA 90095
  • Reassigned Medicare billing, California enrollment
  • 1,766 clinicians in this Medicare group
NPI 1235107566 (310) 794-1276

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90404 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. COLLEEN LUCY CHANNICK M.D.
Internal Medicine (Pulmonary Disease)
1223 16TH ST STE 3400
SANTA MONICA, CA 90404
Los Angeles County (310) 449-0939
NEAL WALIA
Internal Medicine (Sleep Medicine)
1223 16TH ST STE 3400
SANTA MONICA, CA 90404
Los Angeles County (310) 449-0939
DR. TAO HE M.D., PH.D.
Internal Medicine (Pulmonary Disease)
1223 16TH ST STE 3400
SANTA MONICA, CA 90404
Los Angeles County (310) 449-0939
DR. TROY MATHEW CISNEROS MD
Internal Medicine (Sleep Medicine)
1223 16TH ST STE 3400
SANTA MONICA, CA 90404
Los Angeles County (310) 449-0939
BRIAN TOSHIRO FRY MD
Surgery
1223 16TH ST STE 3400
SANTA MONICA, CA 90404
Los Angeles County (310) 319-4080
SHAILESH BALASUBRAMANIAN
Internal Medicine (Pulmonary Disease)
1223 16TH ST STE 3400
SANTA MONICA, CA 90404
Los Angeles County (310) 449-0939
TIMOTHY JING PING YOUNG MD
Internal Medicine (Pulmonary Disease)
1223 16TH ST STE 3400
SANTA MONICA, CA 90404
Los Angeles County (310) 449-0939
RACHEL M MALOLEPSZY MS, RD
Dietitian, Registered
1223 16TH ST STE 3400
SANTA MONICA, CA 90404
Los Angeles County (310) 319-4080

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 Andrea Nguyen's NPI number?

The NPI number for Andrea Nguyen is 1417698929. It was assigned to this individual provider in the NPPES registry on April 6, 2022.

Where is Andrea Nguyen located?

Andrea Nguyen practices at 1223 16th St Ste 3400, Santa Monica, CA 90404. The listed phone number is (310) 449-0939.

What is Andrea Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Is Andrea Nguyen enrolled in Medicare?

Yes. Andrea Nguyen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Andrea Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Andrea Nguyen reassigns Medicare benefits to The Regents Of The University Of California (Los Angeles, 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 Andrea Nguyen'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 Andrea Nguyen was last updated on August 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.