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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. RYAN TRONG NGUYEN DO
NPI 1881222594
Internal Medicine - Cardiovascular Disease in Houston, TX

Active since March 29, 2020PECOS EnrolledAccepts Medicare Assignment
4101 GREENBRIAR DR STE 100, HOUSTON, TX 77098(713) 797-0200(713) 797-0200 Get Directions Write a Review

NPPES record last updated: August 5, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Aug 5, 2026, Mar 29, 2020 (2 updates tracked since 2020).

About Dr. Ryan Trong Nguyen Do NPPES

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

DR. RYAN TRONG NGUYEN DO (NPI 1881222594) is an individual cardiovascular disease provider in Houston, Texas, licensed in Texas (V3656) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS, is affiliated with Houston Methodist Baytown Hospital, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1881222594
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameDR. RYAN TRONG NGUYENCredential: DO
Location Address4101 GREENBRIAR DR STE 100Houston, TX 77098-5244
Mailing Address4101 Greenbriar Dr Ste 100Houston, TX 77098-5244 · (713) 797-0200 · Fax (713) 797-0200
Phone(713) 797-0200
Fax(713) 797-0200
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMarch 29, 2020
Last NPPES UpdateAugust 5, 20262 updates tracked since enumeration
NPPES CertifiedAugust 5, 2026
✔ NPI 1881222594 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in TX · V3656
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
4101 GREENBRIAR DR STE 100, Houston, TX 77098
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Ryan Trong Nguyen Do 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 ID749764975
PECOS Enrollment IDI20260325001421
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.

Hospital Affiliations CMS Care Compare

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

Houston Methodist Baytown Hospital

Acute Care Hospitals · Baytown, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450424
Location4401 Garth RoadBaytown, TX 77521 · Harris County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77098 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
$134.06 typical visit price
range $58.24 – $176.98
Typical copayment $33.51 (range $14.56 – $44.24)
Most-billed visit code 99204
Established Patient
$72.62 typical visit price
range $18.60 – $143.93
Typical copayment $18.15 (range $4.65 – $35.98)
Most-billed visit code 99213
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 3

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

JENNY FLEEKS PHYSICAL THERAPIST
Physical Therapist
4101 GREENBRIAR DR STE 100
HOUSTON, TX 77098
Harris County (713) 481-2540
MEDICAL CENTER CARDIOVASCULAR ASSOCIATION
Internal Medicine (Cardiovascular Disease)
4101 GREENBRIAR DR STE 100
HOUSTON, TX 77098
Harris County (713) 797-0200
KENNETH HOANG MD
Internal Medicine (Cardiovascular Disease)
4101 GREENBRIAR DR STE 100
HOUSTON, TX 77098
Harris County (713) 797-0200

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 Ryan Nguyen's NPI number?

The NPI number for Ryan Nguyen is 1881222594. It was assigned to this individual provider in the NPPES registry on March 29, 2020.

Where is Ryan Nguyen located?

Ryan Nguyen practices at 4101 Greenbriar Dr Ste 100, Houston, TX 77098. The listed phone number is (713) 797-0200.

What is Ryan Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Ryan Nguyen enrolled in Medicare?

Yes. Ryan 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.

Is Ryan Nguyen affiliated with any hospitals?

According to CMS data, Ryan Nguyen is affiliated with Houston Methodist Baytown Hospital.

When was this NPI record last updated?

The NPPES record for Ryan Nguyen was last updated on August 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days 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.