Doctor profile · Federal record
Dr. Son Nguyen, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Oklahoma City, OK
- NPI 1457491086
- Accepts Medicare
- 26 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4201 S Western Ave
Oklahoma City, OK 731093410
(405) 632-4000
fax (405) 632-4073
Credentials & registration
- NPI registered
- February 2007 — 19 yrs on file
- Profile last updated
- July 8, 2011
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Oklahoma #21990
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1457491086. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
827
Distinct HCPCS
10
Medicare allowed
$88,798
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 187 | 121 | $83 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 118 | 73 | $75 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 86 | 82 | $73 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 85 | 85 | $130 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 72 | 72 | $236 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 56 | 55 | $78 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 51 | 50 | $101 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 48 | 41 | $52 | |
43248 |
Insertion of guide wire with dilation of esophagus using a flexible endoscope | 39 | 36 | $137 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 33 | 33 | $171 |
In context: peer comparison
Among 31 peers in Oklahoma City Gastroenterology Physician, average services per provider: 48. This provider delivers 17× the peer median.Open Payments
Industry payments received
All-time total
$1,116
Transactions
67
Manufacturers
13
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 29 | $440.41 | |
| Takeda Pharmaceuticals U.S.A., INC. | 9 | $205.02 | |
| Gilead Sciences, INC. | 6 | $93.38 | |
| Madrigal Pharmaceuticals | 2 | $61.35 | |
| Regeneron Healthcare Solutions, INC. | 3 | $58.34 | |
| Celgene Corporation | 4 | $56.17 | |
| Janssen Biotech, INC. | 4 | $53.99 | |
| Aimmune Therapeutics, INC. | 3 | $47.59 | |
| Genzyme Corporation | 2 | $36.84 | |
| Ferring Pharmaceuticals INC. | 1 | $21.62 | |
| Ardelyx, INC. | 1 | $15.03 | |
| Qol Medical, LLC | 1 | $14.16 | |
| Micro-Tech Endoscopy USA, INC. | 2 | $12.36 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
698
Patients
231
Total drug cost
$475,897
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 219 | 77 | $3,067 |
| Omeprazole | Generic | 91 | 29 | $1,455 |
| Sucralfate | Generic | 62 | 24 | $3,638 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 52 | 52 | $903 |
| Metoclopramide Hcl | Generic | 40 | 12 | $314 |
| Dexlansoprazole Dr (Dexlansoprazole) | Brand | 34 | 0 | $11,681 |
| Linzess (Linaclotide) | Brand | 34 | 14 | $33,011 |
| Humira(Cf) Pen (Adalimumab) | Brand | 24 | 0 | $259,382 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 24 | 23 | $512 |
| Rinvoq (Upadacitinib) | Brand | 22 | 0 | $154,669 |
Hospital affiliations
Frequently asked questions
What is Dr. Son Nguyen's medical specialty?
Dr. Son Nguyen practices Gastroenterology Physician in Oklahoma City, OK.
Where does Dr. Son Nguyen practice?
Dr. Son Nguyen practices at 4201 S Western Ave, Oklahoma City, OK 731093410. Office phone: 4056324000.
What is Dr. Son Nguyen's NPI?
Dr. Son Nguyen's National Provider Identifier (NPI) is 1457491086, issued by NPPES.
Does Dr. Son Nguyen accept Medicare assignment?
Yes. Dr. Son Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Son Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.