Doctor profile · Federal record
Dr. William Farrar, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Red Wing, MN
- NPI 1942263108
- Accepts Medicare
- 28 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
701 Hewitt Blvd
Red Wing, MN 550662848
(651) 267-5000 - Additional location
-
200 1St St Sw
Rochester, MN 559050001
(507) 284-2511
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- September 29, 2020
- Year of graduation
- 1998 — 28 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Minnesota #43646
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1942263108. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
343
Distinct HCPCS
10
Medicare allowed
$53,966
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 114 | 114 | $231 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 38 | 38 | $95 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 33 | 32 | $95 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 28 | 28 | $176 | |
43249 |
Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm | 23 | 23 | $143 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 23 | 23 | $101 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 22 | 22 | $85 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 18 | 18 | $178 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 17 | 17 | $80 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 16 | 16 | $129 |
In context: peer comparison
Among 1 peers in Red Wing Gastroenterology Physician, average services per provider: 31. This provider delivers 11× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
312
Patients
59
Total drug cost
$103,159
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 56 | 20 | $1,231 |
| Creon (Lipase/Protease/Amylase) | Brand | 28 | 0 | $75,954 |
| Pantoprazole Sodium | Generic | 28 | 0 | $1,026 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 27 | 27 | $514 |
| Budesonide Dr (Budesonide) | Brand | 22 | 0 | $2,365 |
| Ondansetron Odt (Ondansetron) | Brand | 22 | 0 | $2,153 |
| Prednisone | Generic | 18 | 0 | $235 |
| Entecavir | Generic | 17 | 0 | $9,351 |
| Budesonide Ec (Budesonide) | Brand | 16 | 0 | $5,561 |
| Mercaptopurine | Generic | 16 | 0 | $1,230 |
Hospital affiliations
Frequently asked questions
What is Dr. William Farrar's medical specialty?
Dr. William Farrar practices Gastroenterology Physician in Red Wing, MN.
Where does Dr. William Farrar practice?
Dr. William Farrar practices at 701 Hewitt Blvd, Red Wing, MN 550662848. Office phone: 6512675000.
What is Dr. William Farrar's NPI?
Dr. William Farrar's National Provider Identifier (NPI) is 1942263108, issued by NPPES.
Does Dr. William Farrar accept Medicare assignment?
Yes. Dr. William Farrar accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Farrar commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.