Photo of Dr. Steven Gruenstein

Dr. Steven Gruenstein, MD

Concierge Internal Medicine physician, New York, NY

New York Cancer & Blood Specialists
5.0 (10 reviews)

Dr. Gruenstein is an internist certified by the American Board of Internal Medicine who offers a concierge service.

12 East 86th Street, New York, NY 10028
At a glance
Practice model
Concierge service
Board certification
American Board of Internal Medicine
Languages
Italian

Facts on this page last checked October 2026. How we check doctors

About Dr. Gruenstein

Dr. Gruenstein earned his medical degree from the University of Genoa. He completed an internal medicine residency at Metropolitan Hospital Center. He then completed a fellowship at Beth Israel Medical Center, Petrie Division.

His current work focuses on hematology and oncology.

Membership and fees

Dr. Gruenstein offers a concierge service for patients who want more time and personal attention.

Education and credentials

Degree
MD
Medical school
University of Genoa
Residency
Internal Medicine, Metropolitan Hospital Center
Fellowship
Hematology and oncology, Beth Israel Medical Center, Petrie Division
Board certification
American Board of Internal Medicine
Professional memberships
American Society of Clinical Oncology, American Society of Hematology, American Society of Breast Diseases
NPI
1407855307

Hospital and practice affiliations

Attending physician at Mount Sinai and Lenox Hill

Location

12 East 86th Street, New York, NY 10028
New York Cancer & Blood Specialists practice page
Directions

Recognition and research

Awards

Cited in New York Magazine's Best Doctors and Castle Connolly's Best Doctors in US and NY, and received Patients' Choice and Compassionate Doctor's Awards

Publications

Co-authored a case report in Seminars in Oncology about a 60-year-old man with acute myeloid leukemia and metastatic pancreatic cancer at the same time

Media and books

Discussed blood cancers in The Daily News feature The Daily Check Up

Patient reviews

5.0
10 reviews
5 star10
4 star0
3 star0
2 star0
1 star0
Write a review
Rated 5 out of 5

He clearly explained everything to me

"He was approachable. He clearly explained everything to me and treated me with competence."

FMDD UserMar 2023
Rated 5 out of 5

I definitely recommend him!

"He is the best, going above and beyond to assist us. I definitely recommend him. Thank you very much, Dr.!"

FMDD UserFeb 2023
Rated 5 out of 5

I felt like I was given exceptional care.

"Dr. Gruenstein was considerate, professional, and thorough. I felt like I was given exceptional care."

FMDD UserFeb 2023

Questions patients ask

Does Dr. Gruenstein offer a concierge service?

Yes, Dr. Gruenstein offers a concierge service for patients who want more time and personal attention.

Is Dr. Gruenstein board certified?

Dr. Gruenstein is certified by the American Board of Internal Medicine.

Where did Dr. Gruenstein train?

Dr. Gruenstein earned his medical degree from the University of Genoa. He completed an internal medicine residency at Metropolitan Hospital Center and a fellowship at Beth Israel Medical Center, Petrie Division.

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