NPPES file of Aug 9, 2026

Ronald D. Rinker, M.D.

Gastroenterology Physician · Pascagoula, MS

Ronald D. Rinker, M.D. is a gastroenterology physician with a practice address in Pascagoula, Mississippi, and NPI 1740226117, issued on Jun 22, 2006. Check the license (Mississippi 13048, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1740226117
Name
Ronald D. Rinker
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
13048 MS
Self-reported in NPPES; status is on the state search
Practice location
4511 Hospital St, Pascagoula, MS 39581
Phone
(228) 769-7791
Enumerated
Jun 22, 2006
Record last updated
Jun 4, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(228) 769-7747
Medicaid ID
00119314 MS
Medicare enrollment
Enrolled (PECOS I20101209000672); accepts Medicare assignment
Medical or professional school
Tulane University School Of Medicine, 1989
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4511 Hospital St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. John Connors, NP-CFamily Nurse Practitioner1477831121
  2. Darrell Finlay, M.D.Gastroenterology Physician1982630463
  3. Catherine Hirsch, M.D.Gastroenterology Physician1598795171
  4. Renee ShiaoGastroenterology Physician1548586399

Verify Ronald D. Rinker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
    Search for license 13048
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Mississippi license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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5.2 times the Medicare Part D claims of the average gastroenterology physician in 2024

4,229 Medicare Part D claims for 1,017 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.

  1. Ronald Rinker4,229
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium1,530 claims
  2. Omeprazole567 claims
  3. Famotidine317 claims
  4. Sucralfate252 claims
  5. Prochlorperazine Maleate185 claims
  6. Dicyclomine Hcl161 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: $198.63

7 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. 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.

  1. Ronald Rinker$198.63
  2. Specialty average$5,015.95

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital affiliation

  1. Singing River Health SystemOcean Springs, MS · Acute Care Hospitals1 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Ronald D. Rinker among 128 gastroenterology physician records in Mississippi

Ronald D. Rinker, M.D. is one of 128 gastroenterology physician records with a practice address in Mississippi. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 25% of them.

  • NPI issued2006 · 25% of these records are older, 39% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileYes · 80% of these records are
  • Graduated1989 · median 1998 among the 102 with a school on file
  • Record last updated2013 · 49% 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 Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Mississippi

There are 128 gastroenterology physician records in Mississippi.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Darrell Finlay, M.D.Pascagoula, MS 395811982630463
  2. Catherine Hirsch, M.D.Pascagoula, MS 395811598795171
  3. Renee ShiaoPascagoula, MS 395811548586399
  4. Mohammad Anwar, M.D.Ocean Springs, MS 395641568594893
  5. Alva Dillon, M.D.Ocean Springs, MS 395641699775171
  6. Michael Loebenberg, M.D.Ocean Springs, MS 395641790785277
  7. Alfred McNair, M.D.Ocean Springs, MS 395641700885746
  8. Jason McNeese, M.D.Ocean Springs, MS 395641659303303

Common questions

What is Ronald D. Rinker, M.D.'s NPI number?

Ronald D. Rinker, M.D.'s National Provider Identifier (NPI) is 1740226117, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Ronald D. Rinker, M.D. located?

The NPPES record lists a practice address at 4511 Hospital St, Pascagoula, MS, 39581. Phone: (228) 769-7791. Providers update this record themselves, so call before visiting.

How can I verify Ronald D. Rinker, M.D.'s license?

NPPES lists Mississippi license number 13048, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ronald D. Rinker, M.D. prescribe under Medicare Part D?

In 2024, Ronald D. Rinker, M.D. had 4,229 Medicare Part D claims for 1,017 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.