Doctor profile · Federal record
Dr. John Provenza, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Shreveport, LA
- NPI 1225028434
- Accepts Medicare
- 42 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
8383 Millicent Way Ste B
Shreveport, LA 71115
(318) 631-9121
fax (318) 213-6246 - Mailing address
-
3217 Mabel St
Shreveport, LA 711034022
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- August 12, 2022
- Year of graduation
- 1984 — 42 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Louisiana #017860
- Medicaid
- LA #1376442
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1225028434. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,786
Distinct HCPCS
10
Medicare allowed
$196,970
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 267 | 262 | $101 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 145 | 145 | $140 | |
99439 |
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | 141 | 25 | $45 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 134 | 27 | $60 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 121 | 121 | $242 | |
43450 |
Dilation of esophagus | 109 | 108 | $38 | |
99457 |
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 102 | 20 | $46 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 96 | 88 | $121 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 73 | 73 | $178 | |
99454 |
Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | 68 | 14 | $44 |
In context: peer comparison
Among 6 peers in Shreveport Gastroenterology Physician, average services per provider: 46. This provider delivers 39× the peer median.Open Payments
Industry payments received
All-time total
$1,356
Transactions
76
Manufacturers
13
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 16 | $304.39 | |
| Genzyme Corporation | 8 | $203.37 | |
| Pfizer INC. | 15 | $201.95 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 10 | $160.12 | |
| Janssen Biotech, INC. | 6 | $121.35 | |
| Celgene Corporation | 4 | $72.98 | |
| Takeda Pharmaceuticals U.S.A., INC. | 4 | $71.60 | |
| Phathom Pharmaceuticals, INC. | 4 | $68.29 | |
| Merck Sharp & Dohme LLC | 3 | $47.18 | |
| Daiichi Sankyo INC. | 2 | $35.91 | |
| Lilly USA, LLC | 2 | $29.45 | |
| Intercept Pharmaceuticals, INC. | 1 | $22.10 | |
| Celltrion USA INC. | 1 | $17.24 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
892
Patients
458
Total drug cost
$63,089
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 221 | 220 | $4,878 |
| Pantoprazole Sodium | Generic | 127 | 37 | $1,626 |
| Esomeprazole Magnesium | Generic | 118 | 49 | $3,105 |
| Omeprazole | Generic | 88 | 32 | $945 |
| Baclofen | Generic | 64 | 28 | $690 |
| Amitriptyline Hcl | Generic | 63 | 25 | $408 |
| Colestipol Hcl | Generic | 39 | 12 | $5,619 |
| Linzess (Linaclotide) | Brand | 36 | 14 | $29,680 |
| Ondansetron Odt (Ondansetron) | Brand | 26 | 15 | $378 |
| Mercaptopurine | Generic | 22 | 0 | $3,158 |
Hospital affiliations
Frequently asked questions
What is Dr. John Provenza's medical specialty?
Dr. John Provenza practices Gastroenterology Physician in Shreveport, LA.
Where does Dr. John Provenza practice?
Dr. John Provenza practices at 8383 Millicent Way Ste B, Shreveport, LA 71115. Office phone: 3186319121.
What is Dr. John Provenza's NPI?
Dr. John Provenza's National Provider Identifier (NPI) is 1225028434, issued by NPPES.
Does Dr. John Provenza accept Medicare assignment?
Yes. Dr. John Provenza accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Provenza commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month (HCPCS 99439). Source: CMS Medicare Physician & Other Practitioners file.