Physician Profile
Irwin M. Grosman, MD
Unclaimed ProfileAbout Dr. Grosman
Based in Brooklyn, NY, Irwin M. Grosman, MD is listed in the NPI registry under gastroenterology. Irwin is also listed as specializing in internal medicine. According to Medicare claims data, Irwin cared for 509 Medicare patients across 567 services.
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
- (718) 522-3131
- Email not available
Practice Locations
50 COURT ST
Brooklyn, NY 11201
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
567 services · 509 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
57 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
53 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
49 |
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
25 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
131 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
75 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
70 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
46 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
38 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
23 |
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 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 — 31 related providers in 4 groups
Other gastroenterology specialists in Brooklyn 7
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1984 at Other 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 does Dr. Grosman specialize in?
Dr. Grosman is a gastroenterology in Brooklyn, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Grosman located?
Dr. Grosman is listed at 50 Court St, Brooklyn, NY 11201. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Grosman's phone number?
The number on file is (718) 522-3131. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Grosman's NPI number?
Dr. Grosman's National Provider Identifier is 1821059668. 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. Grosman go to medical school?
Dr. Grosman attended Other, graduating in 1984. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Grosman been practicing?
Dr. Grosman has 42 years experience. Calculated from a graduation year of 1984, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Grosman do most often?
According to Medicare billing data, Dr. Grosman performs procedures including biopsy of large bowel using a flexible endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare 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
Has Dr. Grosman confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Grosman. 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.