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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Caldwell, D.O.

Pain Medicine (Anesthesiology) Physician in Stony Brook, NY · enumerated 2010.

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

National Provider Identifier

1487965778

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Registry record

Entity type Individual (Type 1)
Name Dr. William Caldwell
Credential D.O.
Sex Male
Practice address Department of Anesthesiology, Health Science Center L4 #060, Stony Brook, NY, 11794
Phone (631) 444-2975
Enumeration date Jul 1, 2010
Last updated in NPPES Mar 20, 2017

Taxonomy & licenses

207LP2900X Pain Medicine (Anesthesiology) Physician Allopathic & Osteopathic Physicians · License 269486 (NY) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO 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

How do I verify William Caldwell's NPI record?
Cross-check NPI 1487965778 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1487965778 active?
Yes, as of the latest NPPES snapshot, NPI 1487965778 is active (record last updated 2017-03-20).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-03-20.