DR. FREDERICK JONATHAN BROWN MD
NPI 1356901417
Internal Medicine - Cardiovascular Disease in Saint Louis, MO
About Dr. Frederick Jonathan Brown Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. FREDERICK JONATHAN BROWN MD (NPI 1356901417) is an individual cardiovascular disease provider in Saint Louis, Missouri, licensed in Missouri (2021008004) and active in the NPI registry since June 2019. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Pennsylvania State University College Of Medicine (2019).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Frederick Jonathan Brown Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Frederick Brown reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fenton, MO 63026
- Reassigned Medicare billing, Missouri enrollment
- 697 clinicians in this Medicare group
Saint Louis, MO 63136
- Reassigned Medicare billing, Missouri enrollment
- 24 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63110 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 63110
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
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 Frederick Brown's NPI number?
The NPI number for Frederick Brown is 1356901417. It was assigned to this individual provider in the NPPES registry on June 19, 2019.
Where is Frederick Brown located?
Frederick Brown practices at 1 Barnes Jew Hosp Plz, Saint Louis, MO 63110. The listed phone number is (314) 362-5000.
What is Frederick Brown's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.
Is Frederick Brown enrolled in Medicare?
Yes. Frederick Brown is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Frederick Brown's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Frederick Brown reassigns Medicare benefits to 2 organizations: Ssm Medical Group, Inc. (Fenton, MO) and Christian Hospital Physician Billing Services LLC (Saint Louis, MO). 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 Frederick Brown's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Frederick Brown accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 2 other insurers list Frederick Brown 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.
When was this NPI record last updated?
The NPPES record for Frederick Brown was last updated on June 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Frederick Jonathan Brown, MD · NPI 1356901417
Cardiovascular Disease physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 19, 2019.
## Identity
- **NPI:** 1356901417 (Entity type: Individual)
- **Enumerated:** June 19, 2019
- **Primary specialty:** Internal Medicine - Cardiovascular Disease · taxonomy 207RC0000X
- **State license:** 2021008004 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 BARNES JEW HOSP PLZ, Saint Louis, MO 63110-1003
- **Phone:** (314) 362-5000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Ssm Medical Group, Inc. (NPI 1700966207, Fenton, MO); Christian Hospital Physician Billing Services LLC (NPI 1689828501, Saint Louis, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Pennsylvania State University College Of Medicine, class of 2019
## Record status
- **NPPES last updated:** June 29, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1356901417) · Data from the CMS NPPES public registry.