Physician Profile
Unclaimed ProfileAbout GREENSTEIN
Marc S Greenstein, DO is a healthcare provider in Rochester, NY specialising in obstetrics/gynecology. Marc trained at New York College of Osteo Medicine of New York Institute of Technology, graduating in 1991. Marc is also listed as specialising in gynecology and obstetrics & gynecology.
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. Greenstein specialise in?
Dr. Greenstein is an obstetrics/gynecology in Rochester, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OBSTETRICS/GYNECOLOGY”.
NPI registry
Where is Dr. Greenstein located?
Dr. Greenstein is listed at 3101 W RIDGE RD BUILDING D, Rochester, NY 14626. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Greenstein's phone number?
The number on file is (585) 225-1580. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Greenstein's NPI number?
Dr. Greenstein's National Provider Identifier is 1346354404. 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. Greenstein go to medical school?
Dr. Greenstein attended New York College of Osteo Medicine of New York Institute of Technology, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Greenstein been practising?
Dr. Greenstein has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Greenstein do most often?
According to Medicare billing data, Dr. Greenstein 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
Has Dr. Greenstein confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Greenstein. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (585) 225-1580
- Email not available
Practice Locations
3101 W RIDGE RD BUILDING D
Rochester, NY 14626
Procedures Most Often Billed to Medicare
136 services · 94 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
90 |
| Cervical or vaginal cancer screening; pelvic and clinical breast examination | Billing code | G0101 |
20 |
| Urinalysis, manual test | Lab test | 81002 |
15 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
11 |
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 obstetrics/gynecology specialists at this location 5
Same specialty, same street address — most likely the same department or group.
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 obstetrics/gynecology specialists in Rochester 8
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at New York College of Osteo Medicine of New York Institute of Technology 8
Other providers in the same specialty who trained at the same institution.
Class of 1991 at New York College of Osteo Medicine of New York Institute of Technology 8
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.