Dr. Raymond Mark Maciejewski, MD
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 4400 Clayton Ave, Saint Louis, MO 63110
- Practice phone
- Call (314) 432-3600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Maciejewski's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Raymond Mark Maciejewski is a pediatrician in Missouri
Dr. Maciejewski practices at Shriners Children's St. Louis in Saint Louis, Missouri, part of Shriners Hospitals for Children.
Dr. Maciejewski's NPI, 1134284078, was assigned on December 22, 2006. Dr. Maciejewski holds Missouri license 2003018929.
- NPI
- 1134284078NPI Registry (opens in a new tab)
- NPI enumeration date
- December 22, 2006
- NPI status
- Active
- Practice phone
- (314) 432-3600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Raymond Mark Maciejewski practices at Shriners Children's St. Louis in Saint Louis, Missouri
Dr. Maciejewski's primary practice is Shriners Children's St. Louis, at 4400 Clayton Ave, Saint Louis, MO 63110 in St. Louis City. The practice phone is (314) 432-3600.
- Shriners Children's St. Louis4400 Clayton Ave, Saint Louis, MO 63110 · St. Louis CityPhone(314) 432-3600
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Raymond Mark Maciejewski is affiliated with 1 site of care and 1 medical group
Dr. Maciejewski's primary practice is Shriners Children's St. Louis in Saint Louis, Missouri, part of Shriners Hospitals for Children. The medical group on file is Shriners Hospitals For Children.
Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Raymond Mark Maciejewski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maciejewski practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Shriners Children's St. Louis | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Shriners Hospitals for Children and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Raymond Mark Maciejewski is one of 1,158 pediatricians in Missouri
Pediatrics is Dr. Maciejewski's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Maciejewski is licensed in Missouri.
Specialties and state licenses
- Pediatrics, MissouriPrimary
Pediatricians near Dr. Maciejewski
Counts of pediatricians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Sources for Dr. Raymond Mark Maciejewski's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Raymond Mark Maciejewski
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Raymond Mark Maciejewski's NPI number?
Dr. Raymond Mark Maciejewski's NPI number is 1134284078. It was assigned on December 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Raymond Mark Maciejewski?
Dr. Raymond Mark Maciejewski is a pediatrician in Missouri. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Raymond Mark Maciejewski practice?
Dr. Maciejewski practices at 4400 Clayton Ave, Saint Louis, MO 63110. Dr. Maciejewski's primary practice is Shriners Children's St. Louis in Saint Louis, Missouri, part of Shriners Hospitals for Children.
What is Dr. Raymond Mark Maciejewski's office phone number?
The practice phone on file for Dr. Maciejewski is (314) 432-3600.
What is Dr. Raymond Mark Maciejewski's medical license number?
Dr. Maciejewski holds Missouri license 2003018929.
Which hospitals is Dr. Raymond Mark Maciejewski affiliated with?
Dr. Maciejewski practices at Shriners Children's St. Louis in Saint Louis, Missouri.
What medical group is Dr. Raymond Mark Maciejewski part of?
Dr. Maciejewski is linked to Shriners Hospitals For Children.
How long has Dr. Raymond Mark Maciejewski been practicing?
Dr. Maciejewski's NPI was assigned in 2006.
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