NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Donald Nelson Cotler, M.D.,F.A.A.P.

Legal Medicine in Millburn, NJ · enumerated 2006 · practices at Buono Pediatrics and Wellness.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1801853049

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Registry record

Entity type Individual (Type 1)
Name Dr. Donald Nelson Cotler
Credential M.D.,F.A.A.P.
Sex Male
Practice address Millburn, NJ, 07041
Phone (973) 912-0400
Fax (973) 912-8340
Enumeration date May 1, 2006
Last updated in NPPES Jul 8, 2007

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

173000000X Legal Medicine Other Service Providers · License MA047885 (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.

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Frequently asked questions

Is NPI 1801853049 active?
Yes, as of the latest NPPES snapshot, NPI 1801853049 is active (record last updated 2007-07-08).
How do I verify Donald Cotler's NPI record?
Cross-check NPI 1801853049 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.