Physician Profile
Unclaimed ProfileAbout GREENWALD
David A Greenwald, MD is a healthcare provider in New York, NY specialising in gastroenterology. David trained at Albert Einstein College of Medicine of Yeshiva University, graduating in 1986.
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. Greenwald specialise in?
Dr. Greenwald is a gastroenterology in New York, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where is Dr. Greenwald located?
Dr. Greenwald is listed at 17 E 102ND ST, New York, NY 10029. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Greenwald's phone number?
The number on file is (212) 241-8100. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Greenwald?
Dr. Greenwald's National Provider Identifier is 1144305913. 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. Greenwald go to medical school?
Dr. Greenwald attended Albert Einstein College of Medicine of Yeshiva University, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Greenwald have?
Dr. Greenwald has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Greenwald do most often?
According to Medicare billing data, Dr. Greenwald performs procedures including biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, insertion of needle into vein for collection of blood sample and biopsy of large bowel using a flexible endoscope; provides treatments such as imaging of digestive tract done from the inside of the digestive tract, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Greenwald's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Greenwald. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (212) 241-8100
- Email not available
Practice Locations
17 E 102ND ST
New York, NY 10029
Procedures Most Often Billed to Medicare
584 services · 508 patients · 11 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
32 |
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
25 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
18 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
13 |
| Imaging of digestive tract done from the inside of the digestive tract | Treatment | 91110 |
49 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
144 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
124 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
73 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
53 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
28 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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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 4
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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 — 32 related providers in 4 groups
Other gastroenterology specialists in New York 8
Same specialty, same city.
Trained at Albert Einstein College of Medicine of Yeshiva University 8
Other providers in the same specialty who trained at the same institution.
Class of 1986 at Albert Einstein College of Medicine of Yeshiva University 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 8
Providers in NY 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.