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AUSTIN H. CHHOEU D.O.
NPI 1437225810
Preventive Medicine - Aerospace Medicine in Washington, DC

Active since November 28, 2006Opted out of Medicare · through Jun 22, 2028
5801 DEFENSE PENTAGON, WASHINGTON, DC 20310(703) 692-8810 Get Directions Write a Review

NPPES record last updated: March 11, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Mar 11, 2026, Feb 14, 2023 (2 updates tracked since 2023).

About Austin H. Chhoeu D.o. NPPES

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

AUSTIN H. CHHOEU D.O. (NPI 1437225810) is an individual aerospace medicine provider in Washington, District Of Columbia, licensed in California (20A7222) and active in the NPI registry since November 2006. He has opted out of Medicare through June 22, 2028.

NPPES Registry Identity

NPI1437225810
Entity TypeIndividualMale
Primary Taxonomy2083A0100X
Provider Legal NameAUSTIN H. CHHOEUCredential: D.O.
Location Address5801 DEFENSE PENTAGONWashington, DC 20310-5650
Mailing Address9300 Dewitt LoopFort Belvoir, VA 22060-5285 · (571) 231-2897 · Fax (571) 231-6661
Phone(703) 692-8810
Sole ProprietorNo
Enumeration DateNovember 28, 2006
Last NPPES UpdateMarch 11, 20262 updates tracked since enumeration
NPPES CertifiedMarch 11, 2026
✔ NPI 1437225810 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPreventive Medicine · Aerospace MedicineAllopathic & Osteopathic Physicians
Taxonomy Code2083A0100X
License✔ Licensed in CA · 20A7222
Definition
Aerospace medicine focuses on the clinical care, research, and operational support of the health, safety, and performance of crewmembers and passengers of air and space vehicles, together with the support personnel who assist operation of such vehicles. This population often works and lives in remote, isolated, extreme, or enclosed environments under conditions of physical and psychological stress. Practitioners strive for an optimal human-machine match in occupational settings rich with environmental hazards and engineering countermeasures.
Also ListedPreventive Medicine · Undersea and Hyperbaric MedicineTaxonomy 2083P0011X · License 20A7222 (CA)
Also ListedPreventive Medicine · Preventive Medicine/Occupational Environmental MedicineTaxonomy 2083P0500X · License 20A7222 (CA)
5801 DEFENSE PENTAGON, Washington, DC 20310
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Austin H. Chhoeu D.o. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from June 22, 2026 through June 22, 2028.

Opt-Out Effective DateJune 22, 2026
Opt-Out In Effect ThroughJune 22, 2028Opt-out affidavits renew automatically every two years unless cancelled

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DEBORAH L BRIMMER DENTAL HYGIENIST
Dental Hygienist
5801 DEFENSE PENTAGON
WASHINGTON, DC 20310
District of Columbia (703) 692-8701
JOHN PATRICK WILLIAMS M.D.
Internal Medicine
5801 DEFENSE PENTAGON
WASHINGTON, DC 20310
District of Columbia (703) 614-7765
DR. GREGORY DOWSE DDS
Dentist
5801 DEFENSE PENTAGON
WASHINGTON, DC 20310
District of Columbia (703) 692-8810
LORNA IMPERIAL LAGARDE RPH
Pharmacist
5801 DEFENSE PENTAGON, DTHC PHARMACY SERVICES DTMC PENTAGON
WASHINGTON, DC 20310
District of Columbia (703) 692-8694
KARL STILLER R.PH.
Pharmacist
5801 DEFENSE PENTAGON, CORRIDOR 8, E-RING
WASHINGTON, DC 20310
District of Columbia (703) 692-8692
DR. MARLEEN NGA TRAN PHARMD
Pharmacist
5801 DEFENSE PENTAGON
WASHINGTON, DC 20310
District of Columbia (703) 692-8694
ERIN ELIZABETH JOHNSON DPT
Physical Therapist
5801 DEFENSE PENTAGON
WASHINGTON, DC 20310
District of Columbia (703) 692-8870
APRIL JENNIFER FRYE
Physician Assistant
5801 DEFENSE PENTAGON
WASHINGTON, DC 20310
District of Columbia (703) 692-8810

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 Austin Chhoeu's NPI number?

The NPI number for Austin Chhoeu is 1437225810. It was assigned to this individual provider in the NPPES registry on November 28, 2006.

Where is Austin Chhoeu located?

Austin Chhoeu practices at 5801 Defense Pentagon, Washington, DC 20310. The listed phone number is (703) 692-8810.

What is Austin Chhoeu's specialty?

The primary specialty registered for this NPI is Preventive Medicine, specializing in Aerospace Medicine, with taxonomy code 2083A0100X.

Is Austin Chhoeu enrolled in Medicare?

No. Austin Chhoeu has opted out of Medicare through June 22, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Austin Chhoeu was last updated on March 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.