Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Leah S Gendler, M.D.
Surgery Physician in Morristown, NJ · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1306836127
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Registry record
Entity type Individual (Type 1)
Name Dr. Leah S Gendler
Credential M.D.
Sex Female
Practice address 100 Madison Ave # 152, Carol G. Simon Cancer Center at Mmc, Morristown, NJ, 07960
Phone (973) 971-4166
Fax (973) 290-7152
Enumeration date Oct 24, 2005
Last updated in NPPES Feb 12, 2016
Taxonomy & licenses
208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 25MA07906800 (NJ) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is NPI 1306836127 active?
Yes, as of the latest NPPES snapshot, NPI 1306836127 is active (record last updated 2016-02-12).
How do I verify Leah Gendler's NPI record?
Cross-check NPI 1306836127 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-12.