Physician Profile
Unclaimed ProfileAbout DAVIDSON
Mark Mehrdad Davidson, M.D. practises gastroenterology in Los Angeles, CA. Mark is a 1997 graduate of University of California, Geffen School of Medicine. Mark is also listed as specialising in internal 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. Davidson specialise in?
Dr. Davidson is a gastroenterology in Los Angeles, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where is Dr. Davidson located?
Dr. 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 Dr. Davidson's phone number?
The number on file is (310) 855-0222. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Davidson's NPI number?
Dr. 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 Dr. Davidson go to medical school?
Dr. 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 Dr. Davidson been practising?
Dr. Davidson has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Davidson do most often?
According to Medicare billing data, Dr. 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 Dr. Davidson confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Davidson. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (310) 855-0222
- Email not available
Practice Locations
8631 W 3RD ST 1135-E
Los Angeles, CA 90048
Procedures Most Often Billed to Medicare
1,982 services · 1,068 patients · 18 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
58 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
56 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
38 |
| Diagnostic exam of anus using an endoscope | Procedure | 46600 |
21 |
| Complete ultrasound scan of abdomen | Imaging | 76700 |
11 |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
483 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
479 |
| Special stained specimen slides to identify organisms including interpretation and report | Lab test | 88312 |
210 |
| 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 |
| Special stained specimen slides to examine tissue including interpretation and report | Lab test | 88313 |
180 |
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.
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.
Other gastroenterology specialists in Los Angeles 8
Same specialty, same city.
More connections — 20 related providers in 3 groups
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.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.