Doctor profile · Federal record
Dr. Ruth Warren, DO
Medical Oncology Physician · Medical Oncology Physician · Green Bay, WI
- NPI 1124096185
- 20 yrs on file
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1726 Shawano Ave
Green Bay, WI 543033216
(920) 884-3135
fax (920) 884-3144
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- December 20, 2021
- Specialty taxonomy
- 207RX0202X — NUCC code
- State licenses (2)
- Wisconsin #50362 · Michigan #5101018539
- Medicaid (2)
- MI #1124096185 · WI #100004011
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124096185. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
236
Distinct HCPCS
5
Medicare allowed
$27,976
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 90 | 61 | $135 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 70 | 35 | $110 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 49 | 38 | $92 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 14 | 14 | $163 | |
99239 |
Hospital discharge day management, more than 30 minutes | 13 | 13 | $107 |
In context: peer comparison
Among 3 peers in Green Bay Medical Oncology Physician, average services per provider: 42. This provider delivers 5.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
425
Patients
189
Total drug cost
$519,113
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tamoxifen Citrate | Generic | 70 | 21 | $2,186 |
| Anastrozole | Generic | 49 | 17 | $3,804 |
| Ondansetron Hcl | Generic | 38 | 28 | $948 |
| Dexamethasone | Generic | 37 | 29 | $849 |
| Prednisone | Generic | 36 | 24 | $362 |
| Levothyroxine Sodium | Generic | 32 | 13 | $607 |
| Abiraterone Acetate | Generic | 24 | 0 | $72,656 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 23 | 21 | $641 |
| Prochlorperazine Maleate | Generic | 22 | 13 | $371 |
| Eliquis (Apixaban) | Brand | 20 | 11 | $15,117 |
Frequently asked questions
What is Dr. Ruth Warren's medical specialty?
Dr. Ruth Warren practices Medical Oncology Physician in Green Bay, WI.
Where does Dr. Ruth Warren practice?
Dr. Ruth Warren practices at 1726 Shawano Ave, Green Bay, WI 543033216. Office phone: 9208843135.
What is Dr. Ruth Warren's NPI?
Dr. Ruth Warren's National Provider Identifier (NPI) is 1124096185, issued by NPPES.
What procedures does Dr. Ruth Warren commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.