NPI Portal NPI Lookup & Verification

Mark C Stine, DO

Mark C Stine is a Internal Medicine Physician provider (Internal Medicine) practicing in Largo, FL, registered in the NPPES registry with NPI 1174563449 since 2006. The credential DO stands for Doctor of Osteopathic Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1174563449
Entity type Individual (Type 1)
Name Mark C Stine
Credential DO
Sex Male
Practice address Largo, FL, 33771
Phone 7275359899
Fax 7275352818
Enumeration date 2006-06-07
Last updated in NPPES 2013-11-11

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207R00000X Internal Medicine Physician Primary OS5690 FL

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
372049700 Medicaid FL
Copy-ready billing details
Provider: Mark Stine, DO
NPI: 1174563449
Taxonomy: 207R00000X (Internal Medicine Physician)
Address: Largo, FL, 33771

Other providers at this practice address

NPI Name Type Specialty Location
1427055177 Ultra Imaging of Tampa LLC Organization Radiology Clinic/Center Largo, FL
1386635316 Ultra Imaging of Tampa LLC Organization Diagnostic Radiology Physician Largo, FL
1194765214 Kimberly Dean Individual Family Medicine Physician Largo, FL
1023058237 Nicholas Okeson Individual Family Medicine Physician Largo, FL
1649212622 John Melton Individual Physical Therapist Largo, FL
1770528358 Sleep Management Services, Inc. Organization Sleep Disorder Diagnostic Clinic/Center Largo, FL
1245261957 Jason Howard Individual Family Medicine Physician Largo, FL
1992729214 Philip Christ Individual Orthopaedic Surgery Physician Largo, FL

Verify this record

Cross-check NPI 1174563449 against the authoritative CMS record: view Mark C Stine on the official NPPES registry .

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 or validate an NPI number.

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 Stine?
Mark Stine is registered in NPPES with the primary taxonomy of Internal Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2013-11-11.