Doctor profile · Federal record

Dr. Katherine Thyssen, DO

Geriatric Medicine (Internal Medicine) Physician (CMS: Geriatric Medicine) · Reno, NV

  • NPI 1790191955
  • Accepts Medicare
  • 12 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
740 del Monte Ln Ste 3
Reno, NV 895117508
(775) 982-5000
fax (775) 982-3900
Mailing address
1155 Mill St # McM14
Reno, NV 895021576

Credentials & registration

NPPES · NUCC
NPI registered
July 2014 — 12 yrs on file
Profile last updated
May 7, 2024
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207RG0300X — NUCC code
State license (1)
Nevada #DO2531

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1790191955. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
61
Distinct HCPCS
1
Medicare allowed
$7,817
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 61 22 $128

In context: peer comparison

Among 3 peers in Reno Geriatric Medicine (Internal Medicine) Physician, average services per provider: 582. This provider delivers 0.1× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,677
Patients
1,350
Total drug cost
$70,938
Drug Type Claims Patients Total cost
Levothyroxine Sodium Generic 522 156 $9,571
Atorvastatin Calcium Generic 494 178 $9,627
Rosuvastatin Calcium Generic 387 148 $10,490
Losartan Potassium Generic 309 111 $4,209
Amlodipine Besylate Generic 286 106 $3,015
Lisinopril Generic 244 88 $2,191
Omeprazole Generic 225 92 $4,390
Gabapentin Generic 213 96 $4,667
Simvastatin Generic 168 57 $1,219
Tamsulosin Hcl Generic 167 62 $4,587

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Katherine Thyssen's medical specialty?
Dr. Katherine Thyssen practices Geriatric Medicine (Internal Medicine) Physician in Reno, NV.
Where does Dr. Katherine Thyssen practice?
Dr. Katherine Thyssen practices at 740 del Monte Ln Ste 3, Reno, NV 895117508. Office phone: 7759825000.
What is Dr. Katherine Thyssen's NPI?
Dr. Katherine Thyssen's National Provider Identifier (NPI) is 1790191955, issued by NPPES.
Does Dr. Katherine Thyssen accept Medicare assignment?
Yes. Dr. Katherine Thyssen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine Thyssen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.