RONALD D RINKER M.D.
NPI 1740226117
Internal Medicine - Gastroenterology in Pascagoula, MS

Q: What is Ronald Rinker's NPI number?

The NPI number for Ronald Rinker is 1740226117. It was assigned to this individual provider in the NPPES registry on June 22, 2006.

Q: What is Ronald Rinker's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Ronald Rinker was last updated on June 4, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since June 22, 2006PECOS EnrolledAccepts Medicare Assignment

4511 HOSPITAL ST, PASCAGOULA, MS 39581(228) 769-7791(228) 769-7747 Get Directions Write a Review

NPPES record last updated: June 4, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About Ronald D Rinker M.d. NPPES

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

RONALD D RINKER M.D. (NPI 1740226117) is an individual gastroenterology provider in Pascagoula, Mississippi, licensed in Mississippi (13048) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Singing River Health System, and is a graduate of Tulane University School Of Medicine (1989).

NPPES Registry Identity

NPI1740226117

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameRONALD D RINKERCredential: M.D.

Location Address4511 HOSPITAL STPascagoula, MS 39581-5336

Mailing Address4511 Hospital StPascagoula, MS 39581-5336 · (228) 769-7791 · Fax (228) 769-7747

Phone(228) 769-7791

Fax(228) 769-7747

Sole ProprietorNo

Medical School CMSTulane University School Of MedicineGraduated 1989

Enumeration DateJune 22, 2006

Last NPPES UpdateJune 4, 2013

✔ NPI 1740226117 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in MS · 13048

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

4511 HOSPITAL ST, Pascagoula, MS 39581

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Other Identifiers 3

Medicare ID-Type Unspecified100000100

Medicare UPINF30652MS

Medicaid00119314MS

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter Health and more.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

Ronald D Rinker 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 ID9133132913

PECOS Enrollment IDI20101209000672

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

Medicare enrollment records show Ronald Rinker reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Singing River Hospital System

0.2 mi

Neurological Surgery

3003 SHORTCUT RD
Pascagoula, MS 39567

Reassigned Medicare billing, Mississippi enrollment
Medicare enrollment name: Singing River Health System
450 clinicians in this Medicare group

NPI 1629288931 (228) 769-0178

Singing River Gulfport

34 mi

Multi-Specialty

15190 COMMUNITY RD
Gulfport, MS 39503

Reassigned Medicare billing, Mississippi enrollment
298 clinicians in this Medicare group

NPI 1861010159 (228) 575-7975

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 14

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

502 services407 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

298 services295 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

282 services278 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

87 services86 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

67 services48 patients

Diagnostic exam of large bowel using a flexible endoscope 45378

This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.

63 services63 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

63 services63 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

55 services55 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

31 services31 patients

Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43235

This procedure, known as an upper endoscopy, involves inserting a thin, flexible tube with a camera down the throat to examine the esophagus, stomach, and upper small bowel. It helps diagnose conditions like ulcers or inflammation.

25 services25 patients

Injection beneath lining of large bowel using a flexible endoscope 45381

This procedure involves a flexible tube, called an endoscope, being inserted into the large bowel. A small needle is then passed through the tube to inject medication under the bowel lining. This is typically done to treat inflammation or bleeding.

24 services23 patients

Measurement of liver stiffness 91200

Measurement of liver stiffness is a non-invasive procedure that helps assess the health of your liver. It uses sound waves to detect the hardness of the liver tissue, which can indicate conditions like fibrosis or cirrhosis. It's a simple, painless test that provides valuable information about your liver's health.

17 services17 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

16 services16 patients

Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43255

This procedure involves using a flexible tube with a light, called an endoscope, to examine and treat bleeding in the esophagus, stomach, or upper small bowel. It's a safe, effective way to control bleeding and ensure your digestive health.

12 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Singing River Health System

Acute Care Hospitals · Pascagoula, MS

2/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number250040

Location2809 Denny AvenuePascagoula, MS 39581 · Jackson County

Emergency services Birthing friendly

Singing River Gulfport

Acute Care Hospitals · Gulfport, MS

1/5 CMS rating

OwnershipProprietary

CMS Certification Number250123

Location15200 Community RoadGulfport, MS 39503 · Harrison County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 39581 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

$120.41 typical visit price

range $51.65 – $159.18

Typical copayment $30.10 (range $12.91 – $39.79)

Most-billed visit code 99204

Established Patient

$92.20 typical visit price

range $16.15 – $129.61

Typical copayment $23.05 (range $4.03 – $32.40)

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 5

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

Ostomy skin barrier, with flange (solid, flexible or accordion), extended wear, without built-in convexity, 4 x 4 inches or smaller, each A4409

DME-Orthotic Devices · category DF010N

2 suppliers15 claims300 services$5.60 avg. paid by Medicare

Parenteral nutrition solution, not otherwise specified, 10 grams lipids B4185

Other-Enteral and Parenteral · category OB005N

1 supplier11 claims419 services$11.19 avg. paid by Medicare

Parenteral nutrition solution; compounded amino acid and carbohydrates with electrolytes, trace elements and vitamins, including preparation, any strength, 74 to 100 grams of protein - premix B4197

Other-Enteral and Parenteral · category OB005N

1 supplier11 claims77 services$278.52 avg. paid by Medicare

Parenteral nutrition supply kit; premix, per day B4220

Other-Enteral and Parenteral · category OB005N

1 supplier11 claims77 services$7.97 avg. paid by Medicare

Parenteral nutrition administration kit, per day B4224

Other-Enteral and Parenteral · category OB005N

1 supplier11 claims77 services$24.90 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 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

REGIONAL DIGESTIVE SPECIALISTS P.C.

Internal Medicine (Gastroenterology)