Catherine Mathes, MD
NPI 1427092808 · Internal Medicine Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Mathes, MD is a Internal Medicine Physician provider in Knoxville, TN (NPI 1427092808).
Provider details
- NPI number
- 1427092808
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 24164 (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
5,003 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 | 534 | $117 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 453 | $9 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 391 | $10 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 383 | $15 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 324 | $13 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 147 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 510 | 133 |
| Omeprazole | 372 | 100 |
| Atorvastatin Calcium | 371 | 107 |
| Amlodipine Besylate | 356 | 95 |
| Rosuvastatin Calcium | 251 | 78 |
| Metoprolol Succinate | 248 | 68 |
| Lisinopril |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$421 across 25 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
- 2006-06-15
- Last updated
- 2020-01-03
- Certified
- 2020-01-03
Frequently asked questions
- What is Catherine Mathes's NPI number?
- Catherine Mathes's National Provider Identifier (NPI) is 1427092808, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Mathes's specialty?
- Catherine Mathes is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Mathes located?
- Catherine Mathes's practice location on file with NPPES is 200 Fort Sanders West Blvd Ste 301, Knoxville, TN 37922-3360.
- What is Catherine Mathes's phone number?
- The practice phone number listed in the NPPES registry for Catherine Mathes is (865) 212-2285.
- Does Catherine Mathes accept Medicare?
- Catherine Mathes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Mathes's NPI active?
- Yes — Catherine Mathes's NPI (1427092808) is active in the NPPES registry as of the last update on 2020-01-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.