John M. Provenza, M.D.
Gastroenterology Physician · Shreveport, LA
John M. Provenza, M.D. is a gastroenterology physician with a practice address in Shreveport, Louisiana, and NPI 1225028434, issued on Oct 27, 2005. Check the license (Louisiana 017860, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- John M. Provenza
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 017860 LA
Self-reported in NPPES; status is on the state search - Practice location
- 8383 Millicent Way Ste B, Shreveport, LA 71115
- Phone
- (318) 631-9121
- Enumerated
- Oct 27, 2005
- Record last updated
- Aug 12, 2022
- Fax
- (318) 213-6246
- Medicaid ID
- 1376442 LA
- Medicare enrollment
- Enrolled (PECOS I20100831000906); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In Shreveport, 1984
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 263 in Louisiana → Look up another NPI →
Also registered at 8383 Millicent Way Ste B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Humberto Aguilar, M.D.Gastroenterology Physician1366432577
- Jennifer Brown, PA-CPhysician Assistant1851768642
- Claire Herke, PAMedical Physician Assistant1811778996
- Seth Miller, PA-CPhysician Assistant1346521945
- Kylee Poudrier, FNPFamily Nurse Practitioner1629823794
Verify John M. Provenza in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 017860Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% more Medicare Part D claims than the average gastroenterology physician in 2024
1,275 Medicare Part D claims for 505 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Peg 3350-Electrolyte248 claims
- Esomeprazole Magnesium164 claims
- Pantoprazole Sodium80 claims
- Amitriptyline Hcl75 claims
- Omeprazole63 claims
- Baclofen41 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $1,355.93
76 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Capitol City Family Health Center IncorporatedShreveport, LA
- Gastrointestinal Specialists AmcShreveport, LA
- GI Specialists Hospitalists AT WkmcShreveport, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John M. Provenza among 263 gastroenterology physician records in Louisiana
John M. Provenza, M.D. is one of 263 gastroenterology physician records with a practice address in Louisiana. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 83% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated1984 · median 2004 among the 207 with a school on file
- Record last updated2022 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gastroenterology Physician providers in Louisiana
There are 263 gastroenterology physician records in Louisiana.
All 263 in Louisiana → Every provider in Shreveport → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Humberto Aguilar, M.D.Shreveport, LA 711151366432577
- James Hobley, M.D.Shreveport, LA 711151336114917
- Sathya Jaganmohan, M.D.Shreveport, LA 711151922202597
- Catherine Linzay, MDShreveport, LA 711151619364247
- Dale McGinty, MDShreveport, LA 711151376539171
- Barry Osherowitz, MDBossier City, LA 711121023092673
- Simhadri Sastry, M.D.Shreveport, LA 711181811083025
- John Bienvenu, MDBossier City, LA 711111821265281
Common questions
What is John M. Provenza, M.D.'s NPI number?
John M. Provenza, M.D.'s National Provider Identifier (NPI) is 1225028434, issued on Oct 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John M. Provenza, M.D. located?
The NPPES record lists a practice address at 8383 Millicent Way Ste B, Shreveport, LA, 71115. Phone: (318) 631-9121. Providers update this record themselves, so call before visiting.
How can I verify John M. Provenza, M.D.'s license?
NPPES lists Louisiana license number 017860, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John M. Provenza, M.D. prescribe under Medicare Part D?
In 2024, John M. Provenza, M.D. had 1,275 Medicare Part D claims for 505 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.