Doctor profile · Federal record

Dr. Robert Cronk

Hematology & Oncology Physician (CMS: Hematology/Oncology) · Internal Medicine Physician · Student in an Organized Health Care Education/Training Program · Milwaukee, WI

  • NPI 1013301241
  • Accepts Medicare
  • 11 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9200 W Wisconsin Ave
Milwaukee, WI 532263522
(414) 805-0509

Credentials & registration

NPPES · NUCC
NPI registered
March 2015 — 11 yrs on file
Profile last updated
September 9, 2021
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Wisconsin #66558

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1013301241. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
618
Distinct HCPCS
10
Medicare allowed
$69,675
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 124 81 $112
99215 Established patient office or other outpatient visit, 40-54 minutes 120 72 $134
99215 Established patient office or other outpatient visit, 40-54 minutes 98 60 $134
99214 Established patient office or other outpatient visit, 30-39 minutes 66 50 $90
99214 Established patient office or other outpatient visit, 30-39 minutes 56 43 $91
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 26 18 $46
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 25 19 $74
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 24 24 $163
99213 Established patient office or other outpatient visit, 20-29 minutes 23 22 $62
99205 New patient office or other outpatient visit, 60-74 minutes 22 22 $169

In context: peer comparison

Among 18 peers in Milwaukee Hematology & Oncology Physician, average services per provider: 98. This provider delivers 6.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$87
Transactions
4
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Merck Sharp & Dohme LLC 2 $54.08
Pfizer INC. 1 $17.94
Janssen Biotech, INC. 1 $14.64

By nature of payment

Food and Beverage
$87

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
788
Patients
236
Total drug cost
$82,914
Drug Type Claims Patients Total cost
Anastrozole Generic 104 28 $2,218
Letrozole Generic 71 21 $2,211
Pantoprazole Sodium Generic 68 20 $929
Gabapentin Generic 62 17 $735
Eliquis (Apixaban) Brand 61 18 $39,598
Prochlorperazine Maleate Generic 57 34 $714
Potassium Chloride Generic 54 17 $1,647
Ondansetron Hcl Generic 53 31 $728
Acyclovir Generic 45 0 $441
Prednisone Generic 45 17 $298

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Robert Cronk's medical specialty?
Dr. Robert Cronk practices Hematology & Oncology Physician in Milwaukee, WI.
Where does Dr. Robert Cronk practice?
Dr. Robert Cronk practices at 9200 W Wisconsin Ave, Milwaukee, WI 532263522. Office phone: 4148050509.
What is Dr. Robert Cronk's NPI?
Dr. Robert Cronk's National Provider Identifier (NPI) is 1013301241, issued by NPPES.
Does Dr. Robert Cronk accept Medicare assignment?
Yes. Dr. Robert Cronk accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Cronk commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.