DR. KHIEM NGUYEN MD
NPI 1316922511
Internal Medicine - Gastroenterology in Du Bois, PA

Q: What is Khiem Nguyen's NPI number?

The NPI number for Khiem Nguyen is 1316922511. It was assigned to this individual provider in the NPPES registry on December 9, 2005.

Q: What is Khiem Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Khiem Nguyen was last updated on January 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.

Active since December 09, 2005PECOS EnrolledAccepts Medicare Assignment

621 S MAIN ST, DU BOIS, PA 15801(814) 371-0600(814) 372-4764 Get Directions Write a Review

NPPES record last updated: January 14, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Jan 14, 2026, Nov 18, 2025, Sep 12, 2024 (3 updates tracked since 2024).

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About Dr. Khiem Nguyen Md NPPES

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

DR. KHIEM NGUYEN MD (NPI 1316922511) is an individual gastroenterology provider in Du Bois, Pennsylvania, licensed in Florida (ME101782) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Indiana Regional Medical Center, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1316922511

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameDR. KHIEM NGUYENCredential: MD

Location Address621 S MAIN STDu Bois, PA 15801-1413

Mailing AddressCell And Virus Building, Suite 530Buffalo, NY 14263-0001 · (716) 845-3510

Phone(814) 371-0600

Fax(814) 372-4764

Sole ProprietorYes

Medical School CMSEclectic Medical CollegeGraduated 1996

Enumeration DateDecember 9, 2005

Last NPPES UpdateJanuary 14, 20263 updates tracked since enumeration

NPPES CertifiedJanuary 14, 2026

✔ NPI 1316922511 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

Licenses✔ Licensed in FL · ME101782✔ Licensed in PA · MD068281L

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

621 S MAIN ST, Du Bois, PA 15801

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Secondary Practice Locations 4

Location 1Elm and Carlton StBuffalo, NY 14263-0001 · Phone (716) 845-2300

Location 2720 W Mahoning St Ste 300Punxsutawney, PA 15767-1351 · Phone (724) 357-8087 · Fax (814) 246-5247

Location 325 Colony BlvdBlairsville, PA 15717-7971 · Phone (724) 459-1790 · Fax (724) 723-8090

Location 4841 Hospital Rd Ste 3200Indiana, PA 15701-3635 · Phone (724) 463-1414 · Fax (724) 463-1541

Other Identifiers 1

Medicaid000347800FL

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Florida Blue (BlueCross BlueShield FL), Medica, UnitedHealthcare.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

Dr. Khiem 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 ID7810991866

PECOS Enrollment IDI20060905000360, I20230815001092

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.

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

18 services18 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.

15 services15 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

13 services13 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

13 services12 patients

Hospital Affiliations CMS Care Compare

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

Indiana Regional Medical Center

Acute Care Hospitals · Indiana, PA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number390173

Location835 Hospital RoadIndiana, PA 15701 · Indiana County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 15801 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

$126.34 typical visit price

range $54.64 – $166.87

Typical copayment $31.58 (range $13.66 – $41.71)

Most-billed visit code 99204

Established Patient

$96.82 typical visit price

range $17.33 – $135.84

Typical copayment $24.20 (range $4.33 – $33.96)

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.

JO DEE MULHOLLAN CRNP

Nurse Practitioner