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TOAN D NGUYEN MD
NPI 1295118776
Internal Medicine in Houston, TX

Active since July 02, 2015PECOS EnrolledAccepts Medicare Assignment
6550 FANNIN ST, SMITH TOWER, SUITE 1001, HOUSTON, TX 77030(281) 726-8656(713) 793-7064 Get Directions Write a Review

NPPES record last updated: May 1, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Toan D Nguyen Md NPPES

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

TOAN D NGUYEN MD (NPI 1295118776) is an individual internal medicine provider in Houston, Texas, licensed in Texas (S1472) and active in the NPI registry since July 2015. He is enrolled in Medicare PECOS, is affiliated with Houston Methodist Hospital, and is a graduate of Texas A & M University System, Hsc, College Of Medicine (2015).

NPPES Registry Identity

NPI1295118776
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameTOAN D NGUYENCredential: MD
Location Address6550 FANNIN ST, SMITH TOWER, SUITE 1001Houston, TX 77030-2717
Mailing Address6550 Fannin StHouston, TX 77030-2717 · (281) 726-8656 · Fax (713) 793-7064
Phone(281) 726-8656
Fax(713) 793-7064
Sole ProprietorNo
Medical School CMSTexas A & M University System, Hsc, College Of MedicineGraduated 2015
Enumeration DateJuly 2, 2015
Last NPPES UpdateMay 1, 2025
NPPES CertifiedApril 22, 2025
✔ NPI 1295118776 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in TX · S1472✔ Licensed in NE · 7453
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.
Also ListedHospitalistTaxonomy 208M00000X · License 30725 (NE), ,D-45359 (IA)
6550 FANNIN ST, Houston, TX 77030
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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 Texas, Community Health Choice, Medica.Insurance ›

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

Toan D 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 ID2961784871
PECOS Enrollment IDI20190906000372
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.

Areas of Expertise CMS Part B claims 4

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
707 services208 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
147 services143 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
76 services76 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
56 services37 patients

Hospital Affiliations CMS Care Compare

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

Houston Methodist Hospital

Acute Care Hospitals · Houston, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450358
Location6565 FanninHouston, TX 77030 · Harris County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77030 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
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers17 claims17 services$11.67 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
3 suppliers24 claims29 services$64.75 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

MEGAN MCCLANAHAN
Student in an Organized Health Care Education/Training Program
6550 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 441-5155
MARIANNE CARLSON PSYD
Psychologist (Clinical)
6550 FANNIN ST
HOUSTON, TX 77030
Harris County (346) 248-2040
MARIE MCLAIN P.A.
Physician Assistant
6550 FANNIN ST, SMITH TOWER, SUITE 1901
HOUSTON, TX 77030
Harris County (713) 441-1100
DALIA MOGHAZY MD
Obstetrics & Gynecology
6550 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 790-3311
YVONNE I-FANG CHU M.D.
Ophthalmology
6550 FANNIN ST, SUITE 1501
HOUSTON, TX 77030
Harris County (713) 798-6100
DR. SAM JERRY LONG D.D.S.
Dentist (General Practice)
6550 FANNIN ST, STE 2103
HOUSTON, TX 77030
Harris County (713) 797-0846
THOMAS W KNIGHT MD
Internal Medicine
6550 FANNIN ST, SMITH 1101
HOUSTON, TX 77030
Harris County (713) 441-0006
DR. JOOHI JIMENEZ-SHAHED M.D.
Psychiatry & Neurology (Neurology)
6550 FANNIN ST, SUITE 1801
HOUSTON, TX 77030
Harris County (713) 798-5975

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 Toan Nguyen's NPI number?

The NPI number for Toan Nguyen is 1295118776. It was assigned to this individual provider in the NPPES registry on July 2, 2015.

Where is Toan Nguyen located?

Toan Nguyen practices at 6550 Fannin St Smith Tower, Suite 1001, Houston, TX 77030. The listed phone number is (281) 726-8656.

What is Toan Nguyen's specialty?

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

Is Toan Nguyen enrolled in Medicare?

Yes. Toan 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.

What insurance does Toan Nguyen accept?

Health plans from Blue Cross and Blue Shield of Texas, Community Health Choice and Medica list Toan 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.

Is Toan Nguyen affiliated with any hospitals?

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

When was this NPI record last updated?

The NPPES record for Toan Nguyen was last updated on May 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.