DR. MARK EDWARD HALSTEAD MD
NPI 1598783227
Pediatrics - Sports Medicine in Chesterfield, MO
About Dr. Mark Edward Halstead Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK EDWARD HALSTEAD MD (NPI 1598783227) is an individual sports medicine provider in Chesterfield, Missouri, licensed in Missouri (2004011774) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of University Of Wisconsin School Of Medicine (1998).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Mark Edward Halstead Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Mark Halstead reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 157 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Barnes Jewish Hospital
Acute Care Hospitals · Saint Louis, MOProgress West Hospital
Acute Care Hospitals · O Fallon, MOMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHESTERFIELD, MO 63017
CHESTERFIELD, MO 63017
CHESTERFIELD, MO 63017
CHESTERFIELD, MO 63017
CHESTERFIELD, MO 63017
CHESTERFIELD, MO 63017
CHESTERFIELD, MO 63017
CHESTERFIELD, MO 63017
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mark Halstead's NPI number?
The NPI number for Mark Halstead is 1598783227. It was assigned to this individual provider in the NPPES registry on July 18, 2006.
Where is Mark Halstead located?
Mark Halstead practices at 14532 S Outer 40 Rd Dept Orthopaedic Surgery, Ste 200, Chesterfield, MO 63017. The listed phone number is (314) 514-3500.
What is Mark Halstead's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Sports Medicine, with taxonomy code 2080S0010X.
Is Mark Halstead enrolled in Medicare?
Yes. Mark Halstead is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Mark Halstead's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Halstead reassigns Medicare benefits to Washington University (Saint Louis, MO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Halstead's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Halstead accept?
Health plans from Cox HealthPlans and UnitedHealthcare list Mark Halstead as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Mark Halstead affiliated with any hospitals?
According to CMS data, Mark Halstead is affiliated with Barnes Jewish Hospital and Progress West Hospital.
When was this NPI record last updated?
The NPPES record for Mark Halstead was last updated on October 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Mark Edward Halstead, MD · NPI 1598783227
Sports Medicine physician in Chesterfield, Missouri. Individual provider, active in the CMS NPPES registry since July 18, 2006.
## Identity
- **NPI:** 1598783227 (Entity type: Individual)
- **Enumerated:** July 18, 2006
- **Primary specialty:** Pediatrics - Sports Medicine · taxonomy 2080S0010X
- **State license:** 2004011774 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 14532 S OUTER 40 RD, DEPT ORTHOPAEDIC SURGERY, STE 200, Chesterfield, MO 63017-5705
- **Phone:** (314) 514-3500 · **Fax:** (314) 878-7678
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Washington University (NPI 1679516033, Saint Louis, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Wisconsin School Of Medicine, class of 1998
## Record status
- **NPPES last updated:** October 9, 2025
- **Other identifiers:** Medicaid 209144609 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1598783227) · Data from the CMS NPPES public registry.