Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Charter Internal Medicine, LLC

Internal Medicine Physician in Marriottsville, MD · enumerated 2006 · authorized official Randal Riesett, Partner.

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

National Provider Identifier

1750492419

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Registry record

Entity type Organization (Type 2)

Legal business name Charter Internal Medicine, LLC

Practice address 2470 Longstone Ln Ste I, Marriottsville, MD, 21104

Phone (410) 910-2300

Fax (410) 740-9134

Enumeration date Aug 31, 2006

Last updated in NPPES Nov 14, 2017

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Randal Riesett

Title Partner

Phone (410) 910-2300

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 current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2017-11-14. Verify at npiregistry.cms.hhs.gov.

Where is Charter Internal Medicine, LLC located?

The practice location on file with NPPES is in Marriottsville, MD.

Providers at this address

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Randal Riesett Internal Medicine Physician · Marriottsville, MD NPI 1396738779 Jonathan Fish Internal Medicine Physician · Marriottsville, MD NPI 1497748883

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-11-14.