Karl Mareth, MD
Gastroenterology Physician · Jasper, GA
Karl Mareth, MD is a gastroenterology physician with a practice address in Jasper, Georgia, and NPI 1083061808, issued on May 22, 2016. Check the license (Georgia 92309, as entered in NPPES) on the Georgia Composite Medical Board; the Medicare figures below come from public CMS files.
- Name
- Karl Mareth
- Credential
- MD
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 92309 GA
ME134605 FL
34875 OK
Self-reported in NPPES; status is on the state search - Practice location
- 134 Mountainside Village Pkwy Bldg 500, Jasper, GA 30143
- Phone
- (706) 253-7340
- Enumerated
- May 22, 2016
- Record last updated
- Jan 12, 2024
- Medicare enrollment
- Enrolled (PECOS I20221107000232); accepts Medicare assignment
- Medical or professional school
- Texas Tech University Health Science Center School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 530 in Georgia → Look up another NPI →
Also registered at 134 Mountainside Village Pkwy Bldg 500
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nicole Tucker, FNP-CFamily Nurse Practitioner1578063590
- Amy Wheeler, FNP-CFamily Nurse Practitioner1013253103
Verify Karl Mareth in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersGeorgia Composite Medical Board
Search for license 92309Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average gastroenterology physician in 2024
707 Medicare Part D claims for 364 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.
Most prescribed
- Gavilyte-C163 claims
- Pantoprazole Sodium136 claims
- Omeprazole65 claims
- Clenpiq55 claims
- Sucralfate32 claims
- Colestipol Hcl23 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 MIPS final score for 2023 (Medicare payment program): 89.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,184.30
56 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, 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 one group practice
- Digestive Healthcare OF GeorgiaAtlanta, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Karl Mareth among 530 gastroenterology physician records in Georgia
Karl Mareth, MD is one of 530 gastroenterology physician records with a practice address in Georgia. 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 2016, is newer than 88% of them.
- NPI issued2016 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated2016 · median 2001 among the 397 with a school on file
- Record last updated2024 · 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 Georgia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 gastroenterology physician records list a practice address in Jasper
They are 3 of the 269 NPPES records with a practice address in Jasper, and 530 gastroenterology physician records in Georgia.
All 530 in Georgia → Every provider in Jasper → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Frank Lopez, M.D.Jasper, GA 301431497759039
- Michael Perrino, MDJasper, GA 301431124118997
- David Finkelman, M.D.Hiram, GA 301411063485332
- Michael Grupka, MDHiram, GA 301411497953467
- Florence Hosseini Aslinia, MDHiram, GA 301411972611994
- Judy Oh, MDHiram, GA 301411184840589
- Philip Oppong-Twene, MDHiram, GA 301411497251474
- Navinchandra Ruparelia, MDDouglasville, GA 301351043364862
Common questions
What is Karl Mareth, MD's NPI number?
Karl Mareth, MD's National Provider Identifier (NPI) is 1083061808, issued on May 22, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Karl Mareth, MD located?
The NPPES record lists a practice address at 134 Mountainside Village Pkwy Bldg 500, Jasper, GA, 30143. Phone: (706) 253-7340. Providers update this record themselves, so call before visiting.
How can I verify Karl Mareth, MD's license?
NPPES lists Georgia license number 92309, as entered by the provider. Search the Georgia Composite Medical Board at https://medicalboard.georgia.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Karl Mareth, MD prescribe under Medicare Part D?
In 2024, Karl Mareth, MD had 707 Medicare Part D claims for 364 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
What is Karl Mareth, MD's MIPS final score?
The 2023 MIPS final score is 89.9 of 100. 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.