Mario Mariani, MD
NPI 1487680344 · Internal Medicine Physician · Chattanooga, TN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mario Mariani, MD is a Internal Medicine Physician provider in Chattanooga, TN (NPI 1487680344).
Provider details
- NPI number
- 1487680344
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 28875 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
2,366 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 765 | $118 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 725 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 255 | $83 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 244 | $121 |
| Hemoglobin A1c Level83036 | 196 | $9 |
| Colorectal Cancer Screening; Fecal Occult Blood Test, Immunoassay, 1-3 SimultaneousG0328 | 71 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 120 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 832 | 232 |
| Atorvastatin Calcium | 534 | 164 |
| Levothyroxine Sodium | 425 | 103 |
| Losartan Potassium | 333 | 107 |
| Pravastatin Sodium | 291 | 84 |
| Paroxetine Hcl | 270 | 82 |
| Metformin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,928 across 101 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
Registry dates
- Enumerated
- 2006-06-23
- Last updated
- 2008-08-08
Frequently asked questions
- What is Mario Mariani's NPI number?
- Mario Mariani's National Provider Identifier (NPI) is 1487680344, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mario Mariani's specialty?
- Mario Mariani is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mario Mariani located?
- Mario Mariani's practice location on file with NPPES is 3739 Hixson Pike, Chattanooga, TN 37415-3520.
- What is Mario Mariani's phone number?
- The practice phone number listed in the NPPES registry for Mario Mariani is (423) 875-0999.
- Does Mario Mariani accept Medicare?
- Mario Mariani is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mario Mariani's NPI active?
- Yes — Mario Mariani's NPI (1487680344) is active in the NPPES registry as of the last update on 2008-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.