Mack E. McCain, M.D.
Gastroenterology Physician · Herrin, IL
Mack E. McCain, M.D. is a gastroenterology physician with a practice address in Herrin, Illinois, and NPI 1558321190, issued on Mar 27, 2006. Check the license (Illinois 36079027, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mack E. McCain
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License number
- 36079027 IL
Self-reported in NPPES; status is on the state search - Practice location
- 404 Lincoln Dr, Herrin, IL 62948
- Phone
- (618) 993-0056
- Enumerated
- Mar 27, 2006
- Record last updated
- Sep 27, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (618) 993-0752
- Medicare enrollment
- Enrolled (PECOS I20090828000494); accepts Medicare assignment
- Medical or professional school
- Howard University College Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 887 in Illinois → Look up another NPI →
Also registered at 404 Lincoln Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristin Betz, NPNurse Practitioner1588909519
- Amy Miller, APRNNurse Practitioner1255973830
- Jimmy Morrison, MDGastroenterology Physician1881782654
- Gregory Szych, DOGastroenterology Physician1841268521
Verify Mack E. McCain in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 36079027Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average gastroenterology physician in 2024
260 Medicare Part D claims for 99 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Dicyclomine Hcl27 claims
- Lubiprostone20 claims
- Omeprazole20 claims
- Pantoprazole Sodium19 claims
- Amitriptyline Hcl17 claims
- Famotidine17 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 75.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $420.81
11 payments; by number, the most common kind was food and beverage; the largest payer was Madrigal Pharmaceuticals. 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 2 group practices
- Carle Health Care IncorporatedUrbana, IL
- Deaconess Illinois Specialty Clinic, Inc.Mount Vernon, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mack E. McCain among 887 gastroenterology physician records in Illinois
Mack E. McCain, M.D. is one of 887 gastroenterology physician records with a practice address in Illinois. 85% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 52% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated1981 · median 2003 among the 643 with a school on file
- Record last updated2021 · 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 gastroenterology physician records list a practice address in Herrin
They are 5 of the 419 NPPES records with a practice address in Herrin, and 887 gastroenterology physician records in Illinois.
All 887 in Illinois → Every provider in Herrin → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Jeffrey Jacobs, M.D.Herrin, IL 629481174524136
- Jimmy Morrison, MDHerrin, IL 629481881782654
- Gregory Szych, DOHerrin, IL 629481841268521
- Sushilkumar Tibrewala, M.D.Herrin, IL 629481457366858
- Nader Dababneh, M.D.Carbondale, IL 629011821065392
- Zahoor Makhdoom, MDCarbondale, IL 629011982667309
- Melissa Martinez Mateo, M.D.Carbondale, IL 629011003124280
- Saeed Zamir, M.D.Du Quoin, IL 628321134113400
Common questions
What is Mack E. McCain, M.D.'s NPI number?
Mack E. McCain, M.D.'s National Provider Identifier (NPI) is 1558321190, issued on Mar 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mack E. McCain, M.D. located?
The NPPES record lists a practice address at 404 Lincoln Dr, Herrin, IL, 62948. Phone: (618) 993-0056. Providers update this record themselves, so call before visiting.
How can I verify Mack E. McCain, M.D.'s license?
NPPES lists Illinois license number 36079027, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mack E. McCain, M.D. prescribe under Medicare Part D?
In 2024, Mack E. McCain, M.D. had 260 Medicare Part D claims for 99 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Mack E. McCain, M.D.'s MIPS final score?
The 2023 MIPS final score is 75.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.