DR. ALEXANDER JOHN GREENSTEIN M.D. NPI 1992964035

NPI Information

  • NPI: 1992964035
  • Provider Name: DR. ALEXANDER JOHN GREENSTEIN, M.D.
  • Classification: Surgery - 208600000X
  • Entity Type: Individual
  • PECOS Registration: Yes
  • Address: 5 E 98TH ST
    15TH FLOOR, BOX 1259
    NEW YORK, NY
    ZIP 10029
  • Phone: (212) 241-8679

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NPI Details

DR. Alexander John Greenstein, M.D. is a surgery in New York, NY with 23 years of experience. The provider is a general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery. DR. Alexander John Greenstein, M.D. NPI is 1992964035. The provider is registered as an individual entity type.

The NPPES NPI record indicates the provider is a male.

Education
Medical School: JS WEILL MEDICAL COLLEGE, CORNELL UNIVERSITY
Graduation Year:2003

The provider's business location address is:

5 E 98TH ST
15TH FLOOR, BOX 1259
NEW YORK, NY
ZIP 10029-501
Phone: (212) 241-8679
Fax: (212) 534-2654

The NPI 1992964035 is registered in the Medicare Provider, Enrollment, Chain and Ownership System (PECOS). The provider is legally eligible to order and refer Part B (Clinical Laboratory and Imaging), Durable Medical Equipment, Part A Home Health Agency (HHA), Power Mobility Devices.

The following top HCPCS codes were publicly reported for this provider under the Medicare program for the year 2016. The reported codes are based on the top codes for each available Medicare specialty, excluding evaluation and management codes.

  • Follow-up hospital inpatient care per day, typically 15 minutes (HCPCS:99231)
  • Initial hospital inpatient care per day, typically 50 minutes (HCPCS:99222)
  • New patient office or other outpatient visit, 45-59 minutes (HCPCS:99204)
  • New patient office or other outpatient visit, 30-44 minutes (HCPCS:99203)
  • Colonoscopy (HCPCS:NAN13)

The enumeration date for this NPI number is 6/4/2008 and was last updated on 10/8/2014.

Taxonomy Codes

The NPI record includes the healthcare provider taxonomy classification, state license number and state of licensure. The following information regarding the scope of practice of this provider is available:

No. Taxonomy Code Taxonomy Clasification Taxonomy Specialization License Number License State Primary
1208600000XSurgery60 233708NEW YORKYes

What is NPI?

NPI stands for National Provider Identifier. The NPI is a 10-digit identification number that is completely unique. The NPI number by itself does not contain any identifiable information such as a provider’s speciality or location. The NPI is assigned to individuals or organizacions for their lifespan and it is independent of key provider information type updates like a change of practices, location or speciality.

This page was last updated on: 11/21/2025

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