Karl Mareth, MD
NPI 1083061808 · Gastroenterology Physician · Jasper, GA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karl Mareth, MD is a Gastroenterology Physician provider in Jasper, GA (NPI 1083061808).
Provider details
- NPI number
- 1083061808
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 92309 (GA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,335 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 364 | $36 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 134 | $163 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 127 | $87 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 121 | $243 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 113 | $71 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 163 | 151 |
| Pantoprazole Sodium | 136 | 86 |
| Omeprazole | 65 | 32 |
| Sod Picosulf/Mag Ox/Citric Acbrand: Clenpiq | 55 | 53 |
| Sucralfate | 32 | 24 |
| Colestipol Hcl | 23 | — |
| Famotidine | 20 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,184 across 56 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 660 Cherokee St Ne Ste 250Marietta, GA 30060-8941Phone: (404) 425-5570
- 1505 Stone Bridge Pkwy Ste 100Woodstock, GA 30189-8282Phone: (404) 425-5570
Registry dates
- Enumerated
- 2016-05-22
- Last updated
- 2024-01-12
- Certified
- 2024-01-12
Frequently asked questions
- What is Karl Mareth's NPI number?
- Karl Mareth's National Provider Identifier (NPI) is 1083061808, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Mareth's specialty?
- Karl Mareth is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Karl Mareth located?
- Karl Mareth's practice location on file with NPPES is 134 Mountainside Village Pkwy Bldg 500, Jasper, GA 30143-8694.
- What is Karl Mareth's phone number?
- The practice phone number listed in the NPPES registry for Karl Mareth is (706) 253-7340.
- Does Karl Mareth accept Medicare?
- Karl Mareth is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karl Mareth's NPI active?
- Yes — Karl Mareth's NPI (1083061808) is active in the NPPES registry as of the last update on 2024-01-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.