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Dr. R David Mccallum, MD

Colon & Rectal Surgery Physician in Putnam, CT · enumerated 2006.

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

National Provider Identifier

1124085691

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Registry record

Entity type Individual (Type 1)
Name Dr. R David Mccallum
Credential MD
Sex Male
Practice address 346 Pomfret St, Putnam, CT, 06260
Phone (860) 928-2552
Fax (820) 928-0317
Enumeration date Apr 28, 2006
Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 041494 (CT) Secondary
208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License 041494 (CT) 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 1124085691 active?
Yes, as of the latest NPPES snapshot, NPI 1124085691 is active (record last updated 2025-09-11).
How do I verify R Mccallum's NPI record?
Cross-check NPI 1124085691 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 2025-09-11.