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DOAN NGOC CHAU NGUYEN MD
NPI 1700581931
Internal Medicine in Naples, FL

Active since April 05, 2023PECOS EnrolledAccepts Medicare Assignment
311 9TH ST N STE 300, NAPLES, FL 34102(239) 624-0940(239) 624-0941 Get Directions Write a Review

NPPES record last updated: June 15, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 22, 2026, Apr 5, 2023 (2 updates tracked since 2023).

About Doan Ngoc Chau Nguyen Md NPPES

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

DOAN NGOC CHAU NGUYEN MD (NPI 1700581931) is an individual internal medicine provider in Naples, Florida, licensed in Florida (ME180820) and active in the NPI registry since April 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1700581931
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDOAN NGOC CHAU NGUYENCredential: MD
Location Address311 9TH ST N STE 300Naples, FL 34102-5887
Mailing AddressPo Box 112019Naples, FL 34108-0134 · (239) 624-6400 · Fax (239) 624-0401
Phone(239) 624-0940
Fax(239) 624-0941
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateApril 5, 2023
Last NPPES UpdateJune 15, 20262 updates tracked since enumeration
NPPES CertifiedJune 15, 2026
✔ NPI 1700581931 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in FL · ME180820
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
311 9TH ST N STE 300, Naples, FL 34102
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Other Identifiers 2

OtherZYYTYFL · Bcbs
Medicaid131374000FL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Superior HealthPlan, Ambetter Health, Ambetter of Alabama and more.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

Doan Ngoc Chau Nguyen 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 ID7719341288
PECOS Enrollment IDI20260611004090
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 Doan Ngoc Chau Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Nchmd Inc
0.1 mi
Hematology & Oncology
350 7TH ST. N
Naples, FL 34102
  • Reassigned Medicare billing, Florida enrollment
  • 808 clinicians in this Medicare group
NPI 1831120195 (239) 624-6400

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 34102 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
$135.56 typical visit price
range $58.56 – $179.05
Typical copayment $33.89 (range $14.64 – $44.76)
Most-billed visit code 99204
Established Patient
$103.21 typical visit price
range $18.44 – $144.68
Typical copayment $25.80 (range $4.61 – $36.17)
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 10

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

DR. GREGORY DESROSIERS MD
Internal Medicine
311 9TH ST N STE 300
NAPLES, FL 34102
Collier County (239) 624-0940
FRANCIS GERTRUDIS WADSKIER MONTAGNE M.D
Internal Medicine (Infectious Disease)
311 9TH ST N STE 300
NAPLES, FL 34102
Collier County (239) 624-0940
KATHY MAJCINA MD
Internal Medicine
311 9TH ST N STE 300
NAPLES, FL 34102
Collier County (239) 624-0940
DR. ANDREW KOSSACK MD
Hospitalist
311 9TH ST N STE 300
NAPLES, FL 34102
Collier County (239) 624-0940
ALAA ALMALLOUHI MD
Student in an Organized Health Care Education/Training Program
311 9TH ST N STE 300
NAPLES, FL 34102
Collier County (239) 624-0940
DANIEL BOUSHRA HANNA
Internal Medicine
311 9TH ST N STE 300
NAPLES, FL 34102
Collier County (239) 624-0940
MUSTAFA SADEK MD
Student in an Organized Health Care Education/Training Program
311 9TH ST N STE 300
NAPLES, FL 34102
Collier County (239) 624-0940
DR. MATTHEW JAY RIEHL MD
Internal Medicine
311 9TH ST N STE 300
NAPLES, FL 34102
Collier County (239) 624-0940

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 Doan Ngoc Chau Nguyen's NPI number?

The NPI number for Doan Ngoc Chau Nguyen is 1700581931. It was assigned to this individual provider in the NPPES registry on April 5, 2023.

Where is Doan Ngoc Chau Nguyen located?

Doan Ngoc Chau Nguyen practices at 311 9th St N Ste 300, Naples, FL 34102. The listed phone number is (239) 624-0940.

What is Doan Ngoc Chau Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Doan Ngoc Chau Nguyen enrolled in Medicare?

Yes. Doan Ngoc Chau 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 organization bills Medicare for Doan Ngoc Chau Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Doan Ngoc Chau Nguyen reassigns Medicare benefits to Nchmd Inc (Naples, FL). 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 Doan Ngoc Chau Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Doan Ngoc Chau Nguyen accept?

Health plans from Ambetter Health, Ambetter from Superior HealthPlan, Ambetter of Alabama, Cigna HealthCare of Florida, Inc. and Cigna Healthcare list Doan Ngoc Chau 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 Doan Ngoc Chau Nguyen was last updated on June 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.