Doctor profile · Federal record
Dr. Wilfor Diaz Fernandez, M.C.
Gastroenterology Physician (CMS: Gastroenterology) · Rochester, MN
- NPI 1134611817
- Accepts Medicare
- 12 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
200 1St St Sw
Rochester, MN 559050001
(507) 284-2511 - Additional location
-
621 S New Ballas RD
Saint Louis, MO 631418232
(314) 509-5305
fax (314) 251-4454 - Mailing address
-
Po Box 860912
Minneapolis, MN 554860912
Credentials & registration
- NPI registered
- May 2018 — 8 yrs on file
- Profile last updated
- June 18, 2025
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Minnesota #79901
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1134611817. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
354
Distinct HCPCS
4
Medicare allowed
$62,863
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 309 | 301 | $184 | |
99291 |
Critical care, first 30-74 minutes | 19 | 18 | $208 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 13 | 13 | $126 | |
G0316 |
Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th | 13 | 13 | $32 |
In context: peer comparison
Among 60 peers in this city , average services per provider: 34. This provider delivers 10× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Wilfor Diaz Fernandez's medical specialty?
Dr. Wilfor Diaz Fernandez practices Gastroenterology Physician in Rochester, MN.
Where does Dr. Wilfor Diaz Fernandez practice?
Dr. Wilfor Diaz Fernandez practices at 200 1St St Sw, Rochester, MN 559050001. Office phone: 5072842511.
What is Dr. Wilfor Diaz Fernandez's NPI?
Dr. Wilfor Diaz Fernandez's National Provider Identifier (NPI) is 1134611817, issued by NPPES.
Does Dr. Wilfor Diaz Fernandez accept Medicare assignment?
Yes. Dr. Wilfor Diaz Fernandez accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Wilfor Diaz Fernandez commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223); Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.