MELISSA L. BROCK APRN
NPI 1437633716
Nurse Practitioner - Acute Care in Saint Louis, MO
About Melissa L. Brock Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MELISSA L. BROCK APRN (NPI 1437633716) is an individual acute care provider in Saint Louis, Missouri, licensed in Missouri (2018035749) and active in the NPI registry since September 2018. She is enrolled in Medicare PECOS, is affiliated with Poplar Bluff Regional Medical Center, and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Melissa L. Brock Aprn 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 Reassignments
7Medicare enrollment records show Melissa Brock reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 326 clinicians in this Medicare group
Bridgeton, MO 63044
- Reassigned Medicare billing, Missouri enrollment
- 301 clinicians in this Medicare group
Fenton, MO 63026
- Reassigned Medicare billing, Missouri enrollment
- 255 clinicians in this Medicare group
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- Medicare enrollment name: St Anthonys Physician Organization Hospitalist Services Lc
- 340 clinicians in this Medicare group
Poplar Bluff, MO 63901
- Reassigned Medicare billing, Missouri enrollment
- 73 clinicians in this Medicare group
Poplar Bluff, MO 63901
- Reassigned Medicare billing, Missouri enrollment
- 102 clinicians in this Medicare group
Oak Ridge, TN 37830
- Reassigned Medicare billing, Missouri enrollment
- 193 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Poplar Bluff Regional Medical Center
Acute Care Hospitals · Poplar Bluff, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63141 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
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 Melissa Brock's NPI number?
The NPI number for Melissa Brock is 1437633716. It was assigned to this individual provider in the NPPES registry on September 21, 2018. The provider is also known as Melissa L. Clayton Aprn.
Where is Melissa Brock located?
Melissa Brock practices at 615 S New Ballas Rd, Saint Louis, MO 63141. The listed phone number is (314) 251-6339.
What is Melissa Brock's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Melissa Brock enrolled in Medicare?
Yes. Melissa Brock 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 organizations bill Medicare for Melissa Brock's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Melissa Brock reassigns Medicare benefits to 7 organizations: Mercy Clinic Adult Hospitalists - St. Louis, LLC (Saint Louis, MO), Sound Physicians Of Illinois, LLC (Bridgeton, MO), Cogent Healthcare Of Missouri, Inc (Fenton, MO), St Anthonys Physician Organization Hospitalist Services, L.C. (Saint Louis, MO), Butler Physician Services, LLC (Poplar Bluff, MO) and 2 more organizations, listed in the Medicare section above. Each 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 Melissa Brock's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Melissa Brock accept?
Health plans from Oscar Health Maintenance Organization of Florida list Melissa Brock 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 Melissa Brock affiliated with any hospitals?
According to CMS data, Melissa Brock is affiliated with Poplar Bluff Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Melissa Brock was last updated on November 12, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.
# Melissa L. Brock, APRN · NPI 1437633716
Acute Care physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since September 21, 2018.
## Identity
- **NPI:** 1437633716 (Entity type: Individual)
- **Enumerated:** September 21, 2018
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 2018035749 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 615 S NEW BALLAS RD, Saint Louis, MO 63141-8221
- **Phone:** (314) 251-6339
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Mercy Clinic Adult Hospitalists - St. Louis, LLC (NPI 1841235108, Saint Louis, MO); Sound Physicians Of Illinois, LLC (NPI 1043598865, Bridgeton, MO); Cogent Healthcare Of Missouri, Inc (NPI 1780961599, Fenton, MO); St Anthonys Physician Organization Hospitalist Services, L.C. (NPI 1407216336, Saint Louis, MO); Butler Physician Services, LLC (NPI 1982056545, Poplar Bluff, MO); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** November 12, 2024
- **Other identifiers:** Medicaid 7100587360 (KY)
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Source: [NPI Profile](https://npiprofile.com/npi/1437633716) · Data from the CMS NPPES public registry.