Katherine Thyssen, DO
NPI 1790191955 · Geriatric Medicine (Internal Medicine) Physician · Reno, NV
Enrolled with Medicare as Practitioner - Geriatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Thyssen, DO is a Geriatric Medicine (Internal Medicine) Physician provider in Reno, NV (NPI 1790191955).
Provider details
- NPI number
- 1790191955
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- DO2531 (NV)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
50 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 50 | $125 |
Typical Medicare-allowed amounts for these services range $125–$125 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 138 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 531 | 168 |
| Rosuvastatin Calcium | 506 | 170 |
| Atorvastatin Calcium | 491 | 178 |
| Losartan Potassium | 355 | 134 |
| Gabapentin | 330 | 140 |
| Amlodipine Besylate | 305 | 106 |
| Omeprazole |
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-07-09
- Last updated
- 2024-05-07
- Certified
- 2024-05-07
Frequently asked questions
- What is Katherine Thyssen's NPI number?
- Katherine Thyssen's National Provider Identifier (NPI) is 1790191955, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Thyssen's specialty?
- Katherine Thyssen is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Thyssen located?
- Katherine Thyssen's practice location on file with NPPES is 740 Del Monte Ln Ste 3, Reno, NV 89511-7508.
- What is Katherine Thyssen's phone number?
- The practice phone number listed in the NPPES registry for Katherine Thyssen is (775) 982-5000.
- Does Katherine Thyssen accept Medicare?
- Katherine Thyssen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Thyssen's NPI active?
- Yes — Katherine Thyssen's NPI (1790191955) is active in the NPPES registry as of the last update on 2024-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.