Ira W Nierenberg, M.D.

Gastroenterology

Middletown, NY

Specialty

Gastroenterology

Credential

M.D.

NPI

1972517332

Affiliated Facility

Crystal Run Ambulatory Surgery

95 Crystal Run Rd, Middletown, NY 10941

(845) 703-3800

Medicare★ 4.9 Google (352)95% Patient Rating

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Procedures & Specialty

Ira W Nierenberg specializes in Gastroenterology procedures performed in an outpatient ambulatory surgical setting.

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About this profile: Surgeon information is sourced from the CMS National Plan and Provider Enumeration System (NPPES) NPI Registry and reflects the practice address on file as of February 2026. Facility affiliation is based on matching practice address to CMS-certified ambulatory surgery center locations.