Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Thomas Craig Eisenstadt, MD

Allergy & Immunology Physician in Minneapolis, MN · enumerated 2006.

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

National Provider Identifier

1629031034

Verified

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Registry record

Entity type Individual (Type 1)

Name Thomas Craig Eisenstadt

Credential MD

Sex Male

Practice address 825 Nicollet Mall, Suite 221 Eisenstadt Allergy & Asthma LLP, Minneapolis, MN, 55426

Phone (612) 339-0807

Fax (612) 339-1854

Enumeration date Apr 7, 2006

Last updated in NPPES Apr 28, 2015

Taxonomy & licenses

207K00000X Allergy & Immunology Physician Allopathic & Osteopathic Physicians · License 25635 (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

How do I verify Thomas Eisenstadt's NPI record?

Cross-check NPI 1629031034 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1629031034 active?

Yes, as of the latest NPPES snapshot, NPI 1629031034 is active (record last updated 2015-04-28).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-28.