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Raymond Mark Maciejewski, M.D.

Pediatrics Physician in Saint Louis, MO · enumerated 2006.

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

National Provider Identifier

1134284078

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Registry record

Entity type Individual (Type 1)
Name Raymond Mark Maciejewski
Credential M.D.
Sex Male
Practice address 2001 S Lindbergh Blvd, Saint Louis, MO, 63131
Phone (314) 432-3600
Fax (314) 872-7808
Enumeration date Dec 22, 2006
Last updated in NPPES Jul 25, 2012

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 2003018929 (MO) Primary
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
209171917 Medicaid MO -

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 Raymond Maciejewski?
The National Provider Identifier (NPI) for Raymond Maciejewski is 1134284078, a Type 1 (individual) record in the CMS NPPES registry.
Where does Raymond Maciejewski practice?
The practice location on file with NPPES is in Saint Louis, MO. 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 2012-07-25.