Physician Profile
Alissa J. Mark, MD
Unclaimed ProfileAbout Dr. Mark
Alissa J. Mark, MD practices gastroenterology in White Plains, NY. Alissa is a 2001 graduate of Temple University School of Medicine. Medicare claims data shows Alissa provided 383 services to 360 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, removal of polyps or growths of large bowel using an endoscope with mechanical snare, and biopsy of large bowel using a flexible endoscope.
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
- (914) 682-6466
- Email not available
Practice Locations
210 WESTCHESTER AVE
White Plains, NY 10604
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
- Acute pancreatitis
- Gallstones
- Pancreatic cysts
- Primary sclerosing cholangitis
Colon and anorectal
- Anal fissure
- Colon cancer
- Colon polyps
- Lower gastrointestinal bleeding
Esophagus and swallowing
- Barrett's esophagus
- Eosinophilic esophagitis
- Esophageal stricture
- Esophagitis
Functional bowel and motility
- Chronic diarrhea
- Fecal incontinence
- Small intestinal bacterial overgrowth
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
- Functional dyspepsia
- Gastritis
- Gastroparesis
- H. pylori infection
- Peptic ulcer disease
Bowel & Colon
- Diverticulitis
Digestive Symptoms
- Constipation
Gallbladder & Bile Ducts
- Blocked Bile Duct
Procedures & services
Most searched procedures
- Colonoscopy
- Endoscopy
- Gallbladder removal
- Hernia repair
- Liver biopsy
Lower endoscopy
- Colon polyp removal
- Endoscopic control of gastrointestinal bleeding
- Flexible sigmoidoscopy
Upper endoscopy
- Endoscopic submucosal dissection
- Esophageal dilation
Capsule and physiology testing
- Anorectal manometry
- Capsule endoscopy
- Esophageal manometry
Diagnostic Testing
- 24-Hour Acid Reflux Test
- EUS-Guided Fine Needle Biopsy
- H. Pylori Breath Test
- SIBO Breath Test
Liver procedures
- Esophageal variceal banding
- Liver elastography
- Paracentesis
Treatments
- Stool Transplant
Procedures Most Often Billed to Medicare
383 services · 360 patients · 11 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
60 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
57 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
45 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
20 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
16 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
15 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
103 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
20 |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
18 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
18 |
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 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 6
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 — 31 related providers in 4 groups
Other gastroenterologists in White Plains 7
Same specialty, same city.
Trained at Temple University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2001 at Temple University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of polyps or growths of large bowel using an endoscope with mechanical snare 8
Providers in NY who bill this service to Medicare most often.
Common questions
What is Dr. Mark's specialty?
Dr. Mark is a gastroenterologist in White Plains, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where can I find Dr. Mark?
Dr. Mark is listed at 210 Westchester Ave, White Plains, NY 10604. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Mark?
The number on file is (914) 682-6466. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Mark?
Dr. Mark's National Provider Identifier is 1174705065. 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
What is Dr. Mark's medical education?
Dr. Mark attended Temple University School of Medicine, graduating in 2001. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Mark have?
Dr. Mark has 25 years experience. Calculated from a graduation year of 2001, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Mark known for?
According to Medicare billing data, Dr. Mark performs procedures including removal of polyps or growths of large bowel using an endoscope with mechanical snare, biopsy of large bowel using a flexible endoscope and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Mark's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mark. 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.