Doctor profile · Federal record
Dr. Michael Krier, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Fairfield, CA
- NPI 1497808414
- Accepts Medicare
- 22 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
101 Bodin Cir
Fairfield, CA 945351809
(707) 423-4501 - Mailing address
-
1200 B Gale Wilson Blvd
Fairfield, CA 945333552
Credentials & registration
- NPI registered
- January 2007 — 19 yrs on file
- Profile last updated
- April 8, 2016
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #A100295
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1497808414. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,392
Distinct HCPCS
10
Medicare allowed
$175,004
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 326 | 219 | $145 | |
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 | 217 | 212 | $6 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 135 | 135 | $99 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 131 | 126 | $110 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 130 | 128 | $260 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 106 | 95 | $103 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 76 | 73 | $188 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 74 | 74 | $187 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 35 | 35 | $193 | |
99422 |
Online digital evaluation and management service for an established patient for up to 7 days, total time 11-20 minutes | 27 | 20 | $33 |
In context: peer comparison
Among 2 peers in Fairfield Gastroenterology Physician, average services per provider: 70. This provider delivers 20× the peer median.Open Payments
Industry payments received
All-time total
$1,508
Transactions
58
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 15 | $367.86 | |
| Takeda Pharmaceuticals U.S.A., INC. | 13 | $281.28 | |
| Janssen Biotech, INC. | 8 | $198.54 | |
| Lilly USA, LLC | 3 | $86.99 | |
| Pfizer INC. | 3 | $75.62 | |
| Qol Medical, LLC | 2 | $51.80 | |
| Gilead Sciences, INC. | 2 | $51.27 | |
| Organon LLC | 2 | $51.12 | |
| Banner Life Sciences, LLC | 2 | $48.13 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 2 | $38.51 | |
| Sandoz INC. | 1 | $33.70 | |
| Celgene Corporation | 2 | $33.02 | |
| Alexion Pharmaceuticals, INC. | 1 | $30.73 | |
| Celltrion USA INC. | 1 | $29.96 | |
| Mitsubishi Tanabe Pharma America, INC. | 1 | $26.69 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,174
Patients
584
Total drug cost
$198,282
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 305 | 118 | $8,180 |
| Omeprazole | Generic | 209 | 73 | $5,366 |
| Famotidine | Generic | 174 | 77 | $4,643 |
| Gavilyte-C (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 106 | 89 | $1,917 |
| Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) | Brand | 85 | 83 | $1,457 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 65 | 61 | $5,332 |
| Loperamide (Loperamide Hcl) | Brand | 52 | 20 | $1,569 |
| Ondansetron Odt (Ondansetron) | Brand | 48 | 21 | $942 |
| Linzess (Linaclotide) | Brand | 40 | 11 | $28,659 |
| Mesalamine | Generic | 22 | 0 | $18,827 |
Hospital affiliations
Frequently asked questions
What is Dr. Michael Krier's medical specialty?
Dr. Michael Krier practices Gastroenterology Physician in Fairfield, CA.
Where does Dr. Michael Krier practice?
Dr. Michael Krier practices at 101 Bodin Cir, Fairfield, CA 945351809. Office phone: 7074234501.
What is Dr. Michael Krier's NPI?
Dr. Michael Krier's National Provider Identifier (NPI) is 1497808414, issued by NPPES.
Does Dr. Michael Krier accept Medicare assignment?
Yes. Dr. Michael Krier accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Krier commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); 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). Source: CMS Medicare Physician & Other Practitioners file.