Doctor profile · Federal record
Dr. Bret Namihas, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Specialist · Redding, CA
- NPI 1215949722
- Accepts Medicare
- MIPS 68.1 / 100 · 2023
- 39 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
2147 Court St
Redding, CA 960012531
(530) 243-8667
fax (530) 243-8742
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- December 23, 2025
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- California #G58791 · California #00G587910
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1215949722. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
492
Distinct HCPCS
10
Medicare allowed
$75,324
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
45380 |
Biopsy of large bowel using a flexible endoscope | 135 | 135 | $117 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 116 | 115 | $268 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 95 | 93 | $109 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 27 | 26 | $116 | |
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 23 | 22 | $5 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 20 | 19 | $112 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 19 | 19 | $202 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 18 | 18 | $190 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 15 | 15 | $163 | |
43255 |
Control of bleeding of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 12 | 11 | $201 |
In context: peer comparison
Among 5 peers in Redding Gastroenterology Physician, average services per provider: 65. This provider delivers 7.6× the peer median.Open Payments
Industry payments received
All-time total
$37
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Intercept Pharmaceuticals, INC. | 1 | $18.75 | |
| Janssen Biotech, INC. | 1 | $18.21 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
189
Patients
141
Total drug cost
$6,873
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 73 | 41 | $769 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 70 | 67 | $5,371 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 23 | 22 | $327 |
| Pantoprazole Sodium | Generic | 12 | 0 | $171 |
| Gavilyte-C (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 11 | 11 | $234 |
Frequently asked questions
What is Dr. Bret Namihas's medical specialty?
Dr. Bret Namihas practices Gastroenterology Physician in Redding, CA.
Where does Dr. Bret Namihas practice?
Dr. Bret Namihas practices at 2147 Court St, Redding, CA 960012531. Office phone: 5302438667.
What is Dr. Bret Namihas's NPI?
Dr. Bret Namihas's National Provider Identifier (NPI) is 1215949722, issued by NPPES.
Does Dr. Bret Namihas accept Medicare assignment?
Yes. Dr. Bret Namihas accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Bret Namihas commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of large bowel using a flexible endoscope (HCPCS 45380); 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). Source: CMS Medicare Physician & Other Practitioners file.