Doctor profile · Federal record
Dr. Jason Umphress, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Woodland, CA
- NPI 1194741595
- Accepts Medicare
- MIPS 90.2 / 100 · 2023
- 31 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1321 Cottonwood St, Suite 203
Woodland, CA 956955131
(530) 666-1631
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- October 30, 2013
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #A64129
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1194741595. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
682
Distinct HCPCS
10
Medicare allowed
$70,975
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
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 | 179 | 178 | $5 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 127 | 127 | $115 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 87 | 74 | $95 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 67 | 67 | $254 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 60 | 49 | $136 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 55 | 55 | $95 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 32 | 32 | $176 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 23 | 20 | $135 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 23 | 23 | $189 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 18 | 18 | $119 |
In context: peer comparison
Among 2 peers in Woodland Gastroenterology Physician, average services per provider: 49. This provider delivers 14× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
737
Patients
396
Total drug cost
$212,262
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 207 | 199 | $3,722 |
| Omeprazole | Generic | 115 | 46 | $1,644 |
| Famotidine | Generic | 66 | 30 | $1,110 |
| Dicyclomine Hcl | Generic | 45 | 0 | $2,774 |
| Pantoprazole Sodium | Generic | 43 | 14 | $1,003 |
| Lactulose | Generic | 39 | 19 | $2,023 |
| Mesalamine | Generic | 39 | 0 | $26,720 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 29 | 28 | $897 |
| Azathioprine | Generic | 26 | 0 | $1,805 |
| Lansoprazole | Generic | 26 | 0 | $1,228 |
Hospital affiliations
Frequently asked questions
What is Dr. Jason Umphress's medical specialty?
Dr. Jason Umphress practices Gastroenterology Physician in Woodland, CA.
Where does Dr. Jason Umphress practice?
Dr. Jason Umphress practices at 1321 Cottonwood St, Woodland, CA 956955131. Office phone: 5306661631.
What is Dr. Jason Umphress's NPI?
Dr. Jason Umphress's National Provider Identifier (NPI) is 1194741595, issued by NPPES.
Does Dr. Jason Umphress accept Medicare assignment?
Yes. Dr. Jason Umphress accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jason Umphress commonly perform?
Top Medicare-reported procedures in 2023: 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 (HCPCS G0500); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.