Are you Michael Ma? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileBased in New York, NY, Michael Ma is listed in the NPI registry under gastroenterology. Michael graduated from University of Vermont College of Medicine in 2015. Medicare claims data shows Michael provided 48 services to 44 patients. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes and initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes. NPI 1992191571 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
100 E 77TH ST
New York, NY 10075
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.
Most searched conditions
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
48 services · 44 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
27 | Less often than most peers in Gastroenterology |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
21 | Less often than most peers in Gastroenterology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Michael Ma 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
Michael Ma is listed at 100 E 77Th St, New York, NY 10075. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (212) 434-2000. Contact the office directly to confirm availability and scheduling.
NPI registry
Michael Ma's National Provider Identifier is 1992191571. 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
Michael Ma attended University of Vermont College of Medicine, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
Michael Ma has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Michael Ma the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Michael Ma. If this is you, claiming it is free.
Guide.md
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