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

Dr. Michael E. Nellestein, M.D.

Phlebology Physician in Saint Joseph, MO · enumerated 2006 · practices at Nellestein Vein Institute LLC.

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

National Provider Identifier

1104848662

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael E. Nellestein

Credential M.D.

Sex Male

Practice address Saint Joseph, MO, 64506

Phone (816) 291-4149

Fax (816) 897-3969

Enumeration date Jul 24, 2006

Last updated in NPPES Sep 29, 2016

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

Taxonomy & licenses

202K00000X Phlebology Physician Allopathic & Osteopathic Physicians · License 101630 (MO) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
208881938	Medicaid	MO	-

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

What specialty is Michael Nellestein?

Michael Nellestein is registered in NPPES with the primary taxonomy of Phlebology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Nellestein Vein Institute LLC Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Saint Joseph, MO NPI 1841654423

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-29.