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STEVEN NGUYEN M.D.
NPI 1013353663
Internal Medicine in Saint Louis, MO

Active since May 21, 2013PECOS EnrolledAccepts Medicare Assignment
3635 VISTA AVE, SAINT LOUIS, MO 63110(314) 577-8000 Get Directions Write a Review

NPPES record last updated: March 7, 2019. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Steven Nguyen M.d. NPPES

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

STEVEN NGUYEN M.D. (NPI 1013353663) is an individual internal medicine provider in Saint Louis, Missouri, licensed in Missouri (2017028828) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1013353663
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameSTEVEN NGUYENCredential: M.D.
Location Address3635 VISTA AVESaint Louis, MO 63110-2539
Mailing Address17213 Atkinson AveTorrance, CA 90504-2639 · (310) 780-3405
Phone(314) 577-8000
Sole ProprietorNo
Medical School CMSOtherGraduated 2014
Enumeration DateMay 21, 2013
Last NPPES UpdateMarch 7, 2019
✔ NPI 1013353663 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MO · 2017028828
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.
3635 VISTA AVE, Saint Louis, MO 63110
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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

Steven Nguyen M.d. 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 ID8921371139
PECOS Enrollment IDI20170911002281
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 2

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.

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.
260 services255 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
44 services44 patients

Hospital Affiliations CMS Care Compare 2

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

Mercy Hospital St Louis

Acute Care Hospitals · Saint Louis, MO
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260020
Location615 New Ballas RoadSaint Louis, MO 63141 · St. Louis County
Emergency services Birthing friendly

Mercy Hospital South

Acute Care Hospitals · Saint Louis, MO
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number260077
Location10010 Kennerly RoadSaint Louis, MO 63128 · St. Louis County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63110 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
$128.28 typical visit price
range $55.65 – $169.38
Typical copayment $32.07 (range $13.91 – $42.34)
Most-billed visit code 99204
Established Patient
$98.37 typical visit price
range $17.76 – $137.92
Typical copayment $24.59 (range $4.44 – $34.48)
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.

DR. CHRIS C.W. CHAN M.D.
Internal Medicine
3635 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 577-8000
DR. PUJAN H PATEL M.D. BS
Internal Medicine
3635 VISTA AVE, 7TH FLOOR DESLOGE TOWER
SAINT LOUIS, MO 63110
St. Louis City (314) 577-8856
MICHAEL RYAN CAVALIER
Registered Nurse (Emergency)
3635 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 577-8777
JANET LAQUET PHARMD
Pharmacist (Oncology)
3635 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 257-8516
TENET HEALTHSYSTEM SL, INC.
General Acute Care Hospital
3635 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 577-8000
NECAT HAVLIOGLU MD
Pathology (Anatomic Pathology & Clinical Pathology)
3635 VISTA AVE, SAINT LOUIS UNIVERSITY PATHOLOGY SERVICES
SAINT LOUIS, MO 63110
St. Louis City (314) 577-8475
DR. DANIEL KEVIN HOLT MD
Radiology (Diagnostic Radiology)
3635 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (314) 268-5783
DR. CHRISTINE NEOU HENDERSON M.D.
Student in an Organized Health Care Education/Training Program
3635 VISTA AVE
SAINT LOUIS, MO 63110
St. Louis City (541) 231-3099

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 Steven Nguyen's NPI number?

The NPI number for Steven Nguyen is 1013353663. It was assigned to this individual provider in the NPPES registry on May 21, 2013.

Where is Steven Nguyen located?

Steven Nguyen practices at 3635 Vista Ave, Saint Louis, MO 63110. The listed phone number is (314) 577-8000.

What is Steven Nguyen's specialty?

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

Is Steven Nguyen enrolled in Medicare?

Yes. Steven 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 Steven Nguyen affiliated with any hospitals?

According to CMS data, Steven Nguyen is affiliated with Mercy Hospital St Louis and Mercy Hospital South.

When was this NPI record last updated?

The NPPES record for Steven Nguyen was last updated on March 7, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.