Doctor profile · Federal record

Dr. Kathryn Ruddy, MD MPH

Medical Oncology Physician (CMS: Medical Oncology) · Internal Medicine Physician · Medical Oncology Physician · Rochester, MN

  • NPI 1518948082
  • Accepts Medicare
  • 23 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
200 1St St Sw
Rochester, MN 559050001
(507) 284-2511

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
August 20, 2020
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
207RX0202X — NUCC code
State licenses (2)
Minnesota #56415 · Massachusetts #224124

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1518948082. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
24,687
Distinct HCPCS
10
Medicare allowed
$644,700
HCPCS Description Services Patients Avg allowed
J9271 Injection, pembrolizumab, 1 mg 6,000 26 $51
J9144 Injection, daratumumab, 10 mg and hyaluronidase-fihj 4,861 22 $48
J1453 Injection, fosaprepitant, 1 mg 4,200 26 $0
J9267 Injection, paclitaxel, 1 mg 3,960 19 $0
Q5119 Injection, rituximab-pvvr, biosimilar, (ruxience), 10 mg 1,160 14 $29
J1100 Injection, dexamethasone sodium phosphate, 1 mg 803 67 $0
J2405 Injection, ondansetron hydrochloride, per 1 mg 756 68 $0
J9041 Injection, bortezomib, 0.1 mg 490 14 $4
Q5116 Injection, trastuzumab-qyyp, biosimilar, (trazimera), 10 mg 445 11 $27
J2469 Injection, palonosetron hcl, 25 mcg 280 27 $1

In context: peer comparison

Among 30 peers in Rochester Medical Oncology Physician, average services per provider: 717. This provider delivers 34× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
26
Patients
0
Total drug cost
$1,113
Drug Type Claims Patients Total cost
Anastrozole Generic 15 0 $723
Letrozole Generic 11 0 $390

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Kathryn Ruddy's medical specialty?
Dr. Kathryn Ruddy practices Medical Oncology Physician in Rochester, MN.
Where does Dr. Kathryn Ruddy practice?
Dr. Kathryn Ruddy practices at 200 1St St Sw, Rochester, MN 559050001. Office phone: 5072842511.
What is Dr. Kathryn Ruddy's NPI?
Dr. Kathryn Ruddy's National Provider Identifier (NPI) is 1518948082, issued by NPPES.
Does Dr. Kathryn Ruddy accept Medicare assignment?
Yes. Dr. Kathryn Ruddy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kathryn Ruddy commonly perform?
Top Medicare-reported procedures in 2023: Injection, pembrolizumab, 1 mg (HCPCS J9271); Injection, daratumumab, 10 mg and hyaluronidase-fihj (HCPCS J9144); Injection, fosaprepitant, 1 mg (HCPCS J1453). Source: CMS Medicare Physician & Other Practitioners file.