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HAI LONG NGUYEN M.D.
NPI 1316057326
Internal Medicine in Tulsa, OK

Active since August 30, 2006PECOS EnrolledAccepts Medicare Assignment
1145 S UTICA AVE, STE 460, TULSA, OK 74104(918) 579-5749(918) 579-5762 Get Directions Write a Review

NPPES record last updated: July 25, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 25, 2024, Jun 21, 2019, Feb 6, 2017 (3 updates tracked since 2017).

About Hai Long Nguyen M.d. NPPES

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

HAI LONG NGUYEN M.D. (NPI 1316057326) is an individual internal medicine provider in Tulsa, Oklahoma, licensed in Oklahoma (23439) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Hillcrest Medical Center, and is a graduate of University Of Oklahoma College Of Medicine (2003).

NPPES Registry Identity

NPI1316057326
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameHAI LONG NGUYENCredential: M.D.
Location Address1145 S UTICA AVE, STE 460Tulsa, OK 74104-4041
Mailing Address1145 S Utica Ave Ste 460Tulsa, OK 74104-4041 · (918) 579-5749 · Fax (918) 579-5762
Phone(918) 579-5749
Fax(918) 579-5762
Sole ProprietorNo
Medical School CMSUniversity Of Oklahoma College Of MedicineGraduated 2003
Enumeration DateAugust 30, 2006
Last NPPES UpdateJuly 25, 20243 updates tracked since enumeration
NPPES CertifiedJuly 25, 2024
✔ NPI 1316057326 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in OK · 23439
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 23439 (OK)
1145 S UTICA AVE, Tulsa, OK 74104
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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 Oklahoma.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

Hai Long 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 ID4789780685
PECOS Enrollment IDI20070510000094
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

3

Medicare enrollment records show Hai Nguyen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Oklahoma Infectious Disease Specialists, LLC
0.1 mi
Infectious Disease
1120 S UTICA AVE
Tulsa, OK 74104
  • Reassigned Medicare billing, Oklahoma enrollment
  • 48 clinicians in this Medicare group
NPI 1497417067 (918) 579-1000
Tulsa Hospital Medicine Physicians Group, LLC
0.1 mi
Internal Medicine
1120 S UTICA AVE
Tulsa, OK 74104
  • Reassigned Medicare billing, Oklahoma enrollment
  • 210 clinicians in this Medicare group
NPI 1144982711 (918) 579-1000
Thi Specialists LLC
7.0 mi
Infectious Disease
2440 E 81ST ST
Tulsa, OK 74137
  • Reassigned Medicare billing, Oklahoma enrollment
  • 62 clinicians in this Medicare group
NPI 1952763922 (918) 392-8856

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 5

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.
320 services165 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.
163 services153 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.
159 services151 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
61 services32 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010
A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.
14 services11 patients

Hospital Affiliations CMS Care Compare 4

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

Hillcrest Medical Center

Acute Care Hospitals · Tulsa, OK
2/5 CMS rating
OwnershipProprietary
CMS Certification Number370001
Location1120 South Utica AvenueTulsa, OK 74104 · Tulsa County
Emergency services Birthing friendly

Hillcrest Hospital Pryor

Acute Care Hospitals · Pryor, OK
OwnershipGovernment - Hospital District or Authority
CMS Certification Number370015
Location111 North Bailey StreetPryor, OK 74361 · Mayes County
Emergency services

Hillcrest Hospital Claremore

Acute Care Hospitals · Claremore, OK
2/5 CMS rating
OwnershipProprietary
CMS Certification Number370039
Location1202 N Muskogee PlaceClaremore, OK 74017 · Rogers County
Emergency services Birthing friendly

Hillcrest Hospital South

Acute Care Hospitals · Tulsa, OK
4/5 CMS rating
OwnershipProprietary
CMS Certification Number370202
Location8801 South 101st East AvenueTulsa, OK 74133 · Tulsa County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 74104 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 10

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

Tape, waterproof, per 18 square inches A4452
DME-Medical/Surgical Supplies · category DA000N
1 supplier22 claims1,520 services$0.37 avg. paid by Medicare
Collagen based wound filler, dry form, sterile, per gram of collagen A6010
DME-Medical/Surgical Supplies · category DA023N
1 supplier13 claims588 services$29.45 avg. paid by Medicare
Collagen dressing, sterile, size 16 sq. in. or less, each A6021
DME-Medical/Surgical Supplies · category DA023N
1 supplier27 claims819 services$20.35 avg. paid by Medicare
Foam dressing, wound cover, sterile, pad size 16 sq. in. or less, with any size adhesive border, each dressing A6212
DME-Medical/Surgical Supplies · category DA023N
1 supplier11 claims156 services$9.39 avg. paid by Medicare
Specialty absorptive dressing, wound cover, sterile, pad size more than 16 sq. in. but less than or equal to 48 sq. in., without adhesive border, each dressing A6252
DME-Medical/Surgical Supplies · category DA023N
1 supplier12 claims342 services$3.14 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
2 suppliers12 claims12 services$11.70 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.

DR. DAE Y KIM M.D., PH.D
Urology
1145 S UTICA AVE, SUITE 202
TULSA, OK 74104
Tulsa County (918) 579-3130
JARED QUALLS APRN
Nurse Practitioner (Acute Care)
1145 S UTICA AVE, SUITE 460
TULSA, OK 74104
Tulsa County (918) 579-5749
DR. BRENT C MCANULTY M.D.
Hospitalist
1145 S UTICA AVE, STE 460
TULSA, OK 74104
Tulsa County (918) 579-5749
BOARD OF REGENTS OF THE UNIVERSITY OF OKLHOAMA OU PHYSICIANS TULSA
Urology
1145 S UTICA AVE, STE 202
TULSA, OK 74104
Tulsa County (918) 579-3130
SCOTT ROBISONS RX INC
Pharmacy (Community/Retail Pharmacy)
1145 S UTICA AVE, STE 18
TULSA, OK 74104
Tulsa County (918) 582-7144
MRS. ROSE MARIE MARTINO OTR/L
Occupational Therapist
1145 S UTICA AVE, SUITE 262
TULSA, OK 74104
Tulsa County (918) 579-3035
MELANIE K PHILLIPS MD
Emergency Medicine
1145 S UTICA AVE, TULSA
TULSA, OK 74104
Tulsa County (918) 579-2367
JANET ELIZABETH CHEEK DO
Hospitalist
1145 S UTICA AVE, STE 460
TULSA, OK 74104
Tulsa County (918) 579-5749

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 Hai Nguyen's NPI number?

The NPI number for Hai Nguyen is 1316057326. It was assigned to this individual provider in the NPPES registry on August 30, 2006.

Where is Hai Nguyen located?

Hai Nguyen practices at 1145 S Utica Ave Ste 460, Tulsa, OK 74104. The listed phone number is (918) 579-5749.

What is Hai Nguyen's specialty?

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

Is Hai Nguyen enrolled in Medicare?

Yes. Hai 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 Hai Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hai Nguyen reassigns Medicare benefits to 3 organizations: Oklahoma Infectious Disease Specialists, LLC (Tulsa, OK), Tulsa Hospital Medicine Physicians Group, LLC (Tulsa, OK) and Thi Specialists LLC (Tulsa, OK). 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 Hai Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Hai Nguyen accept?

Health plans from Blue Cross and Blue Shield of Oklahoma list Hai 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 Hai Nguyen affiliated with any hospitals?

According to CMS data, Hai Nguyen is affiliated with Hillcrest Medical Center, Hillcrest Hospital Pryor, Hillcrest Hospital Claremore and Hillcrest Hospital South.

When was this NPI record last updated?

The NPPES record for Hai Nguyen was last updated on July 25, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.