Physician Profile
Mark S. Lemert, M.D.
Unclaimed ProfileAbout Dr. Lemert
Mark S. Lemert, M.D. practices gastroenterology in New York, NY. Mark is a 1997 graduate of George Washington University School of Medicine. According to Medicare claims data, Mark cared for 410 Medicare patients across 454 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, biopsy of large bowel using a flexible endoscope, and new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more.
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
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (212) 726-7412
- Email not available
Practice Locations
317 E 34TH ST MURRAY HILL MEDICAL GROUP 7TH FLOOR
New York, NY 10016
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
454 services · 410 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
65 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
45 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
30 |
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
22 |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
13 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
127 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
50 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
26 |
| Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Billing code | G0121 |
24 |
| New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more | Office visit | 99202 |
21 |
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.
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.
Other gastroenterologists in New York 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at George Washington University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1997 at George Washington University School of Medicine 8
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 NY who bill this service to Medicare most often.
- Saratoga Schenectady Endoscopy Center, LLC
- Carnegie Hill Endoscopy LLC
- Yorkville Endoscopy, LLC
- Digestive Diseases Diagnostic & Treatment Center LLC
- Great South Bay Endoscopy Center, LLC
- Endoscopy Center of Long Island LLC
- St. Peter'S Ambulatory Surgery Center LLC
- Long Island Digestive Endoscopy Center, LLC
Common questions
What kind of doctor is Mark S. Lemert?
Mark S. Lemert is a gastroenterologist in New York, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
What is Mark S. Lemert's address?
Mark S. Lemert is listed at 317 E 34Th St Murray Hill Medical Group 7Th Floor, New York, NY 10016. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Mark S. Lemert?
The number on file is (212) 726-7412. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Mark S. Lemert's NPI number?
Mark S. Lemert's National Provider Identifier is 1306810478. 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 S. Lemert train?
Mark S. Lemert attended George Washington University School of Medicine, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How long has Mark S. Lemert been practicing?
Mark S. Lemert has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What procedures does Mark S. Lemert perform?
According to Medicare billing data, Mark S. Lemert 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, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Mark S. Lemert confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mark S. Lemert. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.