Doctor profile · Federal record
Dr. Keith Martin, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Specialist · Yorba Linda, CA
- NPI 1649280546
- Accepts Medicare
- 51 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
16671 Yorba Linda Blvd, Suite 200
Yorba Linda, CA 928862025
(714) 996-3700
fax (714) 961-7839
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- May 6, 2025
- Year of graduation
- 1975 — 51 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #G30724
- Medicaid
- CA #ZZZ82813Z
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1649280546. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
305
Distinct HCPCS
7
Medicare allowed
$49,528
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 138 | 105 | $141 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 49 | 49 | $183 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 37 | 37 | $196 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 28 | 28 | $270 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 26 | 26 | $92 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 15 | 15 | $109 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 12 | 12 | $188 |
In context: peer comparison
Among 5 peers in Yorba Linda Gastroenterology Physician, average services per provider: 46. This provider delivers 6.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
263
Patients
51
Total drug cost
$11,968
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 114 | 37 | $1,572 |
| Pantoprazole Sodium | Generic | 46 | 14 | $1,016 |
| Esomeprazole Magnesium | Generic | 20 | 0 | $747 |
| Movantik (Naloxegol Oxalate) | Brand | 18 | 0 | $7,136 |
| Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) | Brand | 17 | 0 | $931 |
| Dicyclomine Hcl | Generic | 13 | 0 | $293 |
| Ondansetron Odt (Ondansetron) | Brand | 12 | 0 | $96 |
| Prednisone | Generic | 12 | 0 | $47 |
| Amitriptyline Hcl | Generic | 11 | 0 | $130 |
Frequently asked questions
What is Dr. Keith Martin's medical specialty?
Dr. Keith Martin practices Gastroenterology Physician in Yorba Linda, CA.
Where does Dr. Keith Martin practice?
Dr. Keith Martin practices at 16671 Yorba Linda Blvd, Yorba Linda, CA 928862025. Office phone: 7149963700.
What is Dr. Keith Martin's NPI?
Dr. Keith Martin's National Provider Identifier (NPI) is 1649280546, issued by NPPES.
Does Dr. Keith Martin accept Medicare assignment?
Yes. Dr. Keith Martin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Keith Martin commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); Colorectal cancer screening; colonoscopy on individual at high risk (HCPCS G0105). Source: CMS Medicare Physician & Other Practitioners file.