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GIA-HAU NGUYEN D.O.
NPI 1013367523
Emergency Medicine in Monroe, MI

Active since June 15, 2016PECOS EnrolledAccepts Medicare Assignment
718 N MACOMB ST, MONROE, MI 48162(734) 240-8400 Get Directions Write a Review

NPPES record last updated: June 28, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jun 28, 2018, Jun 15, 2016 (2 updates tracked since 2016).

About Gia-hau Nguyen D.o. NPPES

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

GIA-HAU NGUYEN D.O. (NPI 1013367523) is an individual emergency medicine provider in Monroe, Michigan, licensed in Michigan (5101022661) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1013367523
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameGIA-HAU NGUYENCredential: D.O.
Location Address718 N MACOMB STMonroe, MI 48162
Mailing Address927 N Macomb St, Apt. 12bMonroe, MI 48162-3074 · (228) 348-0194
Phone(734) 240-8400
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateJune 15, 2016
Last NPPES UpdateJune 28, 20182 updates tracked since enumeration
✔ NPI 1013367523 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in MI · 5101022661
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
718 N MACOMB ST, Monroe, MI 48162
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Alabama.Insurance ›

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

Gia-hau Nguyen D.o. 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 ID5193071561
PECOS Enrollment IDI20200518002010
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

3

Medicare enrollment records show Gia-hau Nguyen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Keystone Medical Services Of Alabama, Inc.
714 mi
Emergency Medicine
1330 HIGHWAY 231 S
Troy, AL 36081
  • Reassigned Medicare billing, Alabama enrollment
  • 60 clinicians in this Medicare group
NPI 1790432243 (334) 670-5000
Houston County Healthcare Authority
715 mi
Internal Medicine
889 ELBA HWY
Troy, AL 36079
  • Reassigned Medicare billing, Alabama enrollment
  • 514 clinicians in this Medicare group
NPI 1295065811 (334) 347-3404
Signify Health, LLC
964 mi
General Practice
4055 VALLEY VIEW LN STE 700
Dallas, TX 75244
  • Reassigned Medicare billing, Alabama enrollment
  • 456 clinicians in this Medicare group
NPI 1689158487 (469) 466-7007

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 3

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.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
333 services317 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
220 services213 patients
Emergency department visit with low level of medical decision making 99283
An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
33 services33 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48162 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
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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.

ANISHINDER PARKASH MD
Student in an Organized Health Care Education/Training Program
718 N MACOMB ST
MONROE, MI 48162
Monroe County (248) 229-1450
KAITLIN ASSAAD
Pharmacist (Ambulatory Care)
718 N MACOMB ST
MONROE, MI 48162
Monroe County (419) 291-2010
EDWARD KRESYMAN DO
Family Medicine
718 N MACOMB ST
MONROE, MI 48162
Monroe County (734) 240-8927
MR. RONALD J KRAMER CRNA
Nurse Anesthetist, Certified Registered
718 N MACOMB ST
MONROE, MI 48162
Monroe County (734) 240-5254
DR. SARAH HAMZA MD
Emergency Medicine
718 N MACOMB ST
MONROE, MI 48162
Monroe County (734) 240-8400
DR. JEFFERY A TRAGER DO
Emergency Medicine
718 N MACOMB ST
MONROE, MI 48162
Monroe County (734) 240-4435
CHRISTOPHER JACOB POPE
Family Medicine
718 N MACOMB ST
MONROE, MI 48162
Monroe County (734) 240-8400
DR. MICHAEL PATRICK GOLDEN DO
Emergency Medicine
718 N MACOMB ST
MONROE, MI 48162
Monroe County (734) 240-8400

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 Gia-hau Nguyen's NPI number?

The NPI number for Gia-hau Nguyen is 1013367523. It was assigned to this individual provider in the NPPES registry on June 15, 2016.

Where is Gia-hau Nguyen located?

Gia-hau Nguyen practices at 718 N Macomb St, Monroe, MI 48162. The listed phone number is (734) 240-8400.

What is Gia-hau Nguyen's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Gia-hau Nguyen enrolled in Medicare?

Yes. Gia-hau Nguyen 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 Gia-hau Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gia-hau Nguyen reassigns Medicare benefits to 3 organizations: Keystone Medical Services Of Alabama, Inc. (Troy, AL), Houston County Healthcare Authority (Troy, AL) and Signify Health, LLC (Dallas, TX). 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 Gia-hau Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gia-hau Nguyen accept?

Health plans from Blue Cross and Blue Shield of Alabama list Gia-hau Nguyen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gia-hau Nguyen was last updated on June 28, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.