NPI Portal NPI Lookup & Verification

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

Dr. Marc L Schlesinger, MD

Hospitalist Physician in Frisco, CO · enumerated 2006.

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

National Provider Identifier

1982718714

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Marc L Schlesinger
Credential MD
Sex Male
Practice address Frisco, CO, 80443
Enumeration date Aug 18, 2006
Last updated in NPPES Sep 14, 2015

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

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036-056037 (IL) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 036-056037 (IL) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 46152 (CO) Primary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License DR.0046152 (CO) Secondary
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
036056037 Medicaid IL -

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 is the NPI number for Marc Schlesinger?
The National Provider Identifier (NPI) for Marc Schlesinger is 1982718714, a Type 1 (individual) record in the CMS NPPES registry.
Where does Marc Schlesinger practice?
The practice location on file with NPPES is in Frisco, CO. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-14.