Physician Profile
Unclaimed ProfileAbout KATKOV
William Nelson Katkov, M.D. practises gastroenterology in Santa Monica, CA. William is a 1983 graduate of University of Southern California Keck School of Medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Katkov specialise in?
Dr. Katkov is a gastroenterology in Santa Monica, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where is Dr. Katkov located?
Dr. Katkov is listed at 2001 SANTA MONICA BLVD SUITE 360W, Santa Monica, CA 90404. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Katkov's phone number?
The number on file is (310) 453-1871. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Katkov's NPI number?
Dr. Katkov's National Provider Identifier is 1386693646. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Katkov go to medical school?
Dr. Katkov attended University of Southern California Keck School of Medicine, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Katkov been practising?
Dr. Katkov has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Katkov do most often?
According to Medicare billing data, Dr. Katkov performs procedures including biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, biopsy of large bowel using a flexible endoscope and removal of polyps or growths of large bowel using an endoscope with mechanical snare, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Katkov confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Katkov. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (310) 453-1871
- Email not available
Practice Locations
2001 SANTA MONICA BLVD SUITE 360W
Santa Monica, CA 90404
Procedures Most Often Billed to Medicare
1,271 services · 1,176 patients · 15 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
161 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
142 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
38 |
| Insertion of stomach tube using a flexible endoscope | Procedure | 43246 |
33 |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
25 |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
20 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
145 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
137 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
136 |
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99221 |
135 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other gastroenterology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 30 related providers in 4 groups
Other gastroenterology specialists in Santa Monica 6
Same specialty, same city.
Trained at University of Southern California Keck School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1983 at University of Southern California Keck School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 8
Providers in CA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.