Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Douglas W Kaplan, MD

Neurology Physician in Duluth, MN · enumerated 2005.

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

National Provider Identifier

1588669253

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Registry record

Entity type Individual (Type 1)

Name Dr. Douglas W Kaplan

Credential MD

Sex Male

Practice address 1012 E 2nd St, Duluth, MN, 55805

Phone (218) 249-7655

Fax (218) 249-6989

Enumeration date Jun 17, 2005

Last updated in NPPES Jan 27, 2017

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 58794 (MN) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1588669253 active?

Yes, as of the latest NPPES snapshot, NPI 1588669253 is active (record last updated 2017-01-27).

How do I verify Douglas Kaplan's NPI record?

Cross-check NPI 1588669253 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Daniel Billman Pediatrics Physician · Duluth, MN NPI 1902801442 Cynthia Wetmore Pediatrics Physician · Duluth, MN NPI 1184696189 Shawn Mullen Physician Assistant · Duluth, MN NPI 1699730531 David Fogarty Orthopaedic Surgery Physician · Duluth, MN NPI 1508823410 Daniel Cornett Gastroenterology Physician · Duluth, MN NPI 1548228992 Waldo Avello Gastroenterology Physician · Duluth, MN NPI 1922057322 Scott Wolff Emergency Medicine Physician · Duluth, MN NPI 1386694347 Christopher Delp Emergency Medicine Physician · Duluth, MN NPI 1417908641

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-27.