Are you Mark M. Davidson, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 8631 W 3Rd St, 1135-E, Los Angeles, CA 90048
About Dr. Davidson
Mark M. Davidson, M.D. practices gastroenterology in Los Angeles, CA. Mark is a 1997 graduate of University of California, Geffen School of Medicine. Mark is also listed as specializing in internal medicine. According to Medicare claims data, Mark cared for 1,068 Medicare patients across 1,982 services. The services billed most often include pathology examination of tissue using a microscope, intermediate complexity, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and special stained specimen slides to identify organisms including interpretation and report. The provider's National Provider Identifier (NPI) is 1164459178.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (310) 855-0222
- Email not available
Practice Locations
8631 W 3RD ST 1135-E
Los Angeles, CA 90048
Conditions Commonly Evaluated or Treated
Within Gastroenterology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Procedures & services
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
Procedures Most Often Billed to Medicare
1,982 services · 1,068 patients · 18 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
58 | More often than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
56 | As often as other peers in Gastroenterology |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
38 | As often as other peers in Gastroenterology |
| Diagnostic exam of anus using an endoscope | Procedure | 46600 |
21 | Too few peers to compare |
| Complete ultrasound scan of abdomen | Imaging | 76700 |
11 | Less often than most peers in Gastroenterology |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
483 | More often than most peers in Gastroenterology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
479 | More often than most peers in Gastroenterology |
| Special stained specimen slides to identify organisms including interpretation and report | Lab test | 88312 |
210 | Too few peers to compare |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
195 | More than most peers in Gastroenterology |
| Special stained specimen slides to examine tissue including interpretation and report | Lab test | 88313 |
180 | Too few peers to compare |
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 gastroenterologists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
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 — 28 related providers in 4 groups
Other gastroenterologists in Los Angeles 8
Same specialty, same city.
Trained at University of California, Geffen School of Medicine 5
Other providers in the same specialty who trained at the same institution.
Class of 1997 at University of California, Geffen School of Medicine 7
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of large bowel using a flexible endoscope 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Mark M. Davidson specialize in?
Mark M. Davidson is a gastroenterologist in Los Angeles, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where is Mark M. Davidson located?
Mark M. Davidson is listed at 8631 W 3Rd St 1135-E, Los Angeles, CA 90048. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Mark M. Davidson's phone number?
The number on file is (310) 855-0222. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mark M. Davidson's NPI number?
Mark M. Davidson's National Provider Identifier is 1164459178. 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 Mark M. Davidson train?
Mark M. Davidson attended University of California, Geffen School of Medicine, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How long has Mark M. Davidson been practicing?
Mark M. Davidson has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What does Mark M. Davidson do most often?
According to Medicare billing data, Mark M. Davidson performs procedures including biopsy of large bowel using a flexible endoscope, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope and removal of polyps or growths of large bowel using an endoscope with mechanical snare; reads or performs imaging such as complete ultrasound scan of abdomen, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Mark M. Davidson confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mark M. Davidson. If this is you, claiming it is free.
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