Doctor profile · Federal record
Dr. Stephen Fernau, APRN, CRNA
Certified Registered Nurse Anesthetist (CMS: Certified Registered Nurse Anesthetist (CRNA)) · Certified Registered Nurse Anesthetist · Certified Registered Nurse Anesthetist · Tucson, AZ
- NPI 1851343123
- Accepts Medicare
- MIPS 92.0 / 100 · 2023
- 24 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
1625 N Campbell Ave
Tucson, AZ 857194330
(520) 694-0111 - Additional location
-
1425 N Randall RD
Elgin, IL 601232300
(847) 742-9800 - Additional location
-
39W360 Cambridge CT
Saint Charles, IL 601756706
(630) 584-1236
fax (630) 584-1236 - Mailing address
-
6635 Fawn Path Ln
Castle Pines, CO 801089623
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- January 5, 2025
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 367500000X — NUCC code
- State licenses (3)
- Illinois #209-005622 · Wisconsin #141905030 · Illinois #041313248
- Medicaid
- WI #44316900
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1851343123. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
37
Distinct HCPCS
2
Medicare allowed
$3,495
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
00811 |
Anesthesia for other procedure on large bowel using an endoscope | 23 | 23 | $99 | |
00731 |
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope | 14 | 14 | $86 |
In context: peer comparison
Among 30 peers in Tucson Certified Registered Nurse Anesthetist, average services per provider: 72. This provider delivers 0.5× the peer median.Open Payments
Industry payments received
All-time total
$17
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Merck Sharp & Dohme LLC | 1 | $16.78 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Stephen Fernau's medical specialty?
Dr. Stephen Fernau practices Certified Registered Nurse Anesthetist in Tucson, AZ.
Where does Dr. Stephen Fernau practice?
Dr. Stephen Fernau practices at 1625 N Campbell Ave, Tucson, AZ 857194330. Office phone: 5206940111.
What is Dr. Stephen Fernau's NPI?
Dr. Stephen Fernau's National Provider Identifier (NPI) is 1851343123, issued by NPPES.
Does Dr. Stephen Fernau accept Medicare assignment?
Yes. Dr. Stephen Fernau accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephen Fernau commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811); Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731). Source: CMS Medicare Physician & Other Practitioners file.