NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark P Stuart, D.O.

Cardiovascular Disease Physician in Winter Garden, FL · enumerated 2005.

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

National Provider Identifier

1447243977

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark P Stuart
Credential D.O.
Sex Male
Practice address 17000 Porter Rd Ste 201, Winter Garden, FL, 34787
Fax (407) 290-2118
Enumeration date Aug 30, 2005
Last updated in NPPES Jan 6, 2023

Taxonomy & licenses

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License MS012107 (MI) Secondary
207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians · License OS11927 (FL) 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

Other identifiers

Identifier Type State Issuer
0F31072 Other MI BCBSM COMMON PROV ID #
3524264 Medicaid MI -
5630545 Other MI BCBSM
G85155 Other MI HEALTH ALLIANCE PLAN
123909 Other MI CARE CHOICES
116310900 Medicaid FL -
310F337240 Other MI BCBSM CMG
4568835 Medicaid MI -
C6854 Other MI M-CARE

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 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.
What specialty is Mark Stuart?
Mark Stuart is registered in NPPES with the primary taxonomy of Cardiovascular Disease Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-06.