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DR. CHRIS NGUYEN
NPI 1124478516
Internal Medicine in Oklahoma City, OK

Active since June 16, 2016PECOS EnrolledAccepts Medicare Assignment
3300 NW EXPRESSWAY, OKLAHOMA CITY, OK 73112(405) 713-7403(405) 713-2794 Get Directions Write a Review

NPPES record last updated: September 4, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 4, 2026, Jul 16, 2019, Jun 16, 2016 (3 updates tracked since 2016).

About Dr. Chris Nguyen NPPES

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

DR. CHRIS NGUYEN (NPI 1124478516) is an individual internal medicine provider in Oklahoma City, Oklahoma, licensed in Oklahoma (6714) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with Ascension St John Jane Phillips, and is a graduate of Kansas City University Of Med & Biosciences, College Of Osteo Med (2016).

NPPES Registry Identity

NPI1124478516
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. CHRIS NGUYEN
Location Address3300 NW EXPRESSWAYOklahoma City, OK 73112-4418
Mailing Address5300 N Independence Ave Ste 280Oklahoma City, OK 73112-5555 · (405) 713-7403 · Fax (405) 713-2794
Phone(405) 713-7403
Fax(405) 713-2794
Sole ProprietorNo
Medical School CMSKansas City University Of Med & Biosciences, College Of Osteo MedGraduated 2016
Enumeration DateJune 16, 2016
Last NPPES UpdateSeptember 4, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 4, 2026
✔ NPI 1124478516 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses✔ Licensed in OK · 6714✔ Licensed in CA · 24584
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.
3300 NW EXPRESSWAY, Oklahoma City, OK 73112
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Oklahoma, Mending Health, Select Health.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

Dr. Chris Nguyen 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 ID9133498785
PECOS Enrollment IDI20190918001740, I20211203001815
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 Reassignments

7

Medicare enrollment records show Chris Nguyen reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Spectrum Healthcare Solutions, PLLC
2.6 mi
Geriatric Medicine
4220 N CLASSEN BLVD STE A
Oklahoma City, OK 73118
  • Reassigned Medicare billing, Oklahoma enrollment
  • 61 clinicians in this Medicare group
NPI 1558816850 (405) 769-5749
Transitional Care Organization LLC
2.6 mi
Hospitalist
4220 N CLASSEN BLVD STE D
Oklahoma City, OK 73118
  • Reassigned Medicare billing, Oklahoma enrollment
  • 30 clinicians in this Medicare group
NPI 1861150211 (405) 768-5749
Allied Wound Care Specialist PLLC
2.6 mi
Internal Medicine
4220 N CLASSEN BLVD STE C
Oklahoma City, OK 73118
  • Reassigned Medicare billing, Oklahoma enrollment
  • 33 clinicians in this Medicare group
NPI 1497361273 (405) 900-4995
Mercy Clinic Oklahoma Communities
5.5 mi
Family Medicine
4300 W MEMORIAL RD
Oklahoma City, OK 73120
  • Reassigned Medicare billing, Oklahoma enrollment
  • 975 clinicians in this Medicare group
NPI 1386874550 (405) 752-3333
Allied Woundcare Center LLC
11 mi
Medical Specialty
8324 S WALKER AVE
Oklahoma City, OK 73139
  • Reassigned Medicare billing, Oklahoma enrollment
  • 20 clinicians in this Medicare group
NPI 1750167383 (405) 768-5749
Usacs Observation Medicine Services Of Oklahoma, LLC
100 mi
Emergency Medicine
6161 S YALE AVE
Tulsa, OK 74136
  • Reassigned Medicare billing, Oklahoma enrollment
  • 300 clinicians in this Medicare group
NPI 1326739111 (844) 474-4019
Ihc Health Services Inc
810 mi
Family Medicine
1100 S MEDICAL DR
Mt Pleasant, UT 84647
  • Reassigned Medicare billing, Utah enrollment
  • 3,691 clinicians in this Medicare group
NPI 1750425815 (435) 462-3471

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 6

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 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.
555 services212 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.
113 services111 patients
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.
80 services50 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.
64 services64 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
22 services11 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.
17 services17 patients

Hospital Affiliations CMS Care Compare 4

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

Ascension St John Jane Phillips

Acute Care Hospitals · Bartlesville, OK
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370018
Location3500 East Frank Phillips BoulevardBartlesville, OK 74006 · Washington County
Emergency services Birthing friendly

Ssm Health St Anthony Hospital - Oklahoma City

Acute Care Hospitals · Oklahoma City, OK
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number370037
Location1000 North Lee AvenueOklahoma City, OK 73101 · Oklahoma County
Emergency services Birthing friendly

Ascension St John Medical Center

Acute Care Hospitals · Tulsa, OK
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370114
Location1923 South Utica AvenueTulsa, OK 74104 · Tulsa County
Emergency services Birthing friendly

Cedar City Hospital

Acute Care Hospitals · Cedar City, UT
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number460007
Location1303 North Main StreetCedar City, UT 84721 · Iron County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73112 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
$123.06 typical visit price
range $53.00 – $162.61
Typical copayment $30.76 (range $13.25 – $40.65)
Most-billed visit code 99204
Established Patient
$94.27 typical visit price
range $16.68 – $132.40
Typical copayment $23.56 (range $4.17 – $33.10)
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
3 suppliers13 claims13 services$18.03 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 suppliers23 claims23 services$91.72 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.

MOLLY LYNN COLVARD DNP
Nurse Practitioner (Acute Care)
3300 NW EXPRESSWAY
OKLAHOMA CITY, OK 73112
Oklahoma County (918) 698-4318
NORTHWEST ANESTHESIA PC
Anesthesiology
3300 NW EXPRESSWAY, 2ND FLOOR, DEPARTMENT OF ANESTHESIOLOGY
OKLAHOMA CITY, OK 73112
Oklahoma County (405) 951-2815
MRS. SARAH E HART PA-C
Physician Assistant
3300 NW EXPRESSWAY
OKLAHOMA CITY, OK 73112
Oklahoma County (405) 949-3349
ANGELA M SCHRAG ARNP
Nurse Practitioner (Neonatal)
3300 NW EXPRESSWAY
OKLAHOMA CITY, OK 73112
Oklahoma County (405) 949-3393
MICHAEL LOUIS BRUCE
Physical Therapy Assistant
3300 NW EXPRESSWAY
OKLAHOMA CITY, OK 73112
Oklahoma County (405) 636-7087
MEGAN V MCFARLAND APRN
Nurse Practitioner (Pediatrics, Critical Care)
3300 NW EXPRESSWAY
OKLAHOMA CITY, OK 73112
Oklahoma County (405) 949-4100
MYKENZIE RYAN MORRISON BSN-RN
Registered Nurse (Emergency)
3300 NW EXPRESSWAY
OKLAHOMA CITY, OK 73112
Oklahoma County (405) 949-3011
JADE ELAINE HOGAN
Registered Nurse
3300 NW EXPRESSWAY
OKLAHOMA CITY, OK 73112
Oklahoma County (530) 440-4187

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 Chris Nguyen's NPI number?

The NPI number for Chris Nguyen is 1124478516. It was assigned to this individual provider in the NPPES registry on June 16, 2016.

Where is Chris Nguyen located?

Chris Nguyen practices at 3300 NW Expressway, Oklahoma City, OK 73112. The listed phone number is (405) 713-7403.

What is Chris Nguyen's specialty?

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

Is Chris Nguyen enrolled in Medicare?

Yes. Chris 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 organizations bill Medicare for Chris Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Chris Nguyen reassigns Medicare benefits to 7 organizations: Spectrum Healthcare Solutions, PLLC (Oklahoma City, OK), Transitional Care Organization LLC (Oklahoma City, OK), Allied Wound Care Specialist PLLC (Oklahoma City, OK), Mercy Clinic Oklahoma Communities (Oklahoma City, OK), Allied Woundcare Center LLC (Oklahoma City, OK) and 2 more organizations, listed in the Medicare section above. Each 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 Chris Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Chris Nguyen accept?

Health plans from Blue Cross and Blue Shield of Oklahoma, Mending Health and Select Health list Chris 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 Chris Nguyen affiliated with any hospitals?

According to CMS data, Chris Nguyen is affiliated with Ascension St John Jane Phillips, Ssm Health St Anthony Hospital - Oklahoma City, Ascension St John Medical Center and Cedar City Hospital.

When was this NPI record last updated?

The NPPES record for Chris Nguyen was last updated on September 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 60 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.