Alexander John Greenstein, M.D.

Surgery

(212) 241-8679New York, NY
Telehealth Available
NPI Active per CMS — Q2 2026

With over 23 years in surgery, Alexander Greenstein, M.D. is a long-established surgery specialist in New York. Trained at Js Weill Medical College, Cornell University (class of 2003), he has been practicing for over 23 years.

1 of 150 Surgery providers in NYSee all Surgery in New York23+ years experienceNPI since 2008

Data updated 2014-10-08 on CMS NPPES

Contact & Location

Practice Location

5 E 98th St 15th Floor, Box 1259, New York, NY 10029-6501

Fax: (212) 534-2654

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

SurgeryAllopathic & Osteopathic Physicians

General surgeon

Taxonomy: 208600000X

Education & Training

Js Weill Medical College, Cornell University (Class of 2003)

Virtual Surgery Care With Alexander Greenstein

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Alexander Greenstein for follow-ups, medication reviews, and ongoing care — no travel to New York required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about Alexander Greenstein

NPI records show Dr. Greenstein as active with telehealth listed in New York, NY. Note: NPI status alone doesn't confirm open availability — always call ahead. Phone: (212) 241-8679.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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