Doctor profile · Federal record
Dr. William Katkov, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Santa Monica, CA
- NPI 1386693646
- Accepts Medicare
- MIPS 84.1 / 100 · 2023
- 43 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2001 Santa Monica Blvd, Suite 360W
Santa Monica, CA 904042102
(310) 453-1871
fax (310) 453-1871
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- December 19, 2007
- Year of graduation
- 1983 — 43 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- California #G54468
- Medicaid
- CA #00G544680
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1386693646. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,409
Distinct HCPCS
10
Medicare allowed
$172,854
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 298 | 223 | $99 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 244 | 244 | $123 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 174 | 172 | $100 | |
99221 |
Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | 153 | 140 | $88 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 143 | 74 | $85 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 136 | 136 | $170 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 44 | 44 | $270 | |
G0121 |
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | 40 | 40 | $187 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 37 | 36 | $185 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 36 | 36 | $196 |
In context: peer comparison
Among 10 peers in Santa Monica Gastroenterology Physician, average services per provider: 98. This provider delivers 14× the peer median.Open Payments
Industry payments received
All-time total
$950
Transactions
44
Manufacturers
12
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 12 | $274.91 | |
| Janssen Biotech, INC. | 8 | $225.88 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 13 | $214.91 | |
| Ipsen Biopharmaceuticals, INC | 2 | $53.91 | |
| Regeneron Healthcare Solutions, INC. | 2 | $30.52 | |
| Ardelyx, INC. | 1 | $28.06 | |
| Merck Sharp & Dohme LLC | 1 | $24.87 | |
| Lilly USA, LLC | 1 | $21.52 | |
| Madrigal Pharmaceuticals | 1 | $20.08 | |
| Aimmune Therapeutics, INC. | 1 | $19.59 | |
| Pfizer INC. | 1 | $18.14 | |
| Ironwood Pharmaceuticals, INC | 1 | $17.47 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
482
Patients
224
Total drug cost
$72,004
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 170 | 163 | $13,654 |
| Omeprazole | Generic | 62 | 18 | $561 |
| Pantoprazole Sodium | Generic | 55 | 16 | $901 |
| Famotidine | Generic | 37 | 12 | $297 |
| Mesalamine | Generic | 37 | 0 | $32,375 |
| Budesonide Ec (Budesonide) | Brand | 29 | 0 | $3,692 |
| Nortriptyline Hcl | Generic | 23 | 0 | $394 |
| Lansoprazole | Generic | 19 | 0 | $435 |
| Suprep (Sodium, Potassium,Mag Sulfates) | Brand | 15 | 15 | $1,738 |
| Dexlansoprazole Dr (Dexlansoprazole) | Brand | 12 | 0 | $5,602 |
Hospital affiliations
Frequently asked questions
What is Dr. William Katkov's medical specialty?
Dr. William Katkov practices Gastroenterology Physician in Santa Monica, CA.
Where does Dr. William Katkov practice?
Dr. William Katkov practices at 2001 Santa Monica Blvd, Santa Monica, CA 904042102. Office phone: 3104531871.
What is Dr. William Katkov's NPI?
Dr. William Katkov's National Provider Identifier (NPI) is 1386693646, issued by NPPES.
Does Dr. William Katkov accept Medicare assignment?
Yes. Dr. William Katkov accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Katkov commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99203); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.