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Dr. Holly Marie Loud, D.O

Emergency Medicine Physician in Mchenry, IL · enumerated 2007.

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

National Provider Identifier

1831306612

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Registry record

Entity type Individual (Type 1)
Name Dr. Holly Marie Loud
Credential D.O
Sex Female
Practice address 4201 W Medical Center Dr, Mchenry, IL, 60050
Phone (815) 759-3100
Fax (815) 363-9094
Enumeration date May 17, 2007
Last updated in NPPES Jan 31, 2023

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 036127057 (IL) 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
036127057 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.

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Frequently asked questions

What is the NPI number for Holly Loud?
The National Provider Identifier (NPI) for Holly Loud is 1831306612, a Type 1 (individual) record in the CMS NPPES registry.
Where does Holly Loud practice?
The practice location on file with NPPES is in Mchenry, IL. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-31.