Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Loudon Marshall

Psychiatry Physician in Mobile, AL · enumerated 2018.

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

National Provider Identifier

1083119473

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Registry record

Entity type Individual (Type 1)

Name Michael Loudon Marshall

Sex Male

Practice address 2451 Usa Medical Center Dr, Mobile, AL, 36617

Phone (251) 461-4243

Fax (251) 450-4323

Enumeration date Mar 27, 2018

Last updated in NPPES Jun 15, 2022

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD.39155 (AL) Primary

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 Michael Marshall?

Michael Marshall is registered in NPPES with the primary taxonomy of Psychiatry Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Osama Mohamed A M Elkadi Anatomic Pathology & Clinical Pathology Physician · Mobile, AL NPI 1710292941 Vinod Edirisinghe Student in an Organized Health Care Education/Training Program · Mobile, AL NPI 1043625700 Michael Lysek Internal Medicine Physician · Mobile, AL NPI 1265968853 Jenna Fowlkes Family Nurse Practitioner · Mobile, AL NPI 1982124822 Jessica Houston Internal Medicine Physician · Mobile, AL NPI 1447778154 Emily Mcgowin Acute Care Nurse Practitioner · Mobile, AL NPI 1053829556 John Anaya Nephrology Physician · Mobile, AL NPI 1225533557 Rachel Moore Family Nurse Practitioner · Mobile, AL NPI 1396225462

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-15.