DR. JENNIFER MARGERY GRAY MD
NPI 1447711171
Pediatrics - Pediatric Cardiology in Saint Louis, MO
About Dr. Jennifer Margery Gray Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JENNIFER MARGERY GRAY MD (NPI 1447711171) is an individual pediatric cardiology provider in Saint Louis, Missouri, licensed in Missouri (2022017769) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS and is a graduate of Medical College Of Wisconsin (2019).
NPPES Registry Identity
Specialties & Licenses 2
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 (PECOS)
Dr. Jennifer Margery Gray Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Jennifer Gray reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 628 clinicians in this Medicare group
Saint Louis, MO 63108
- Reassigned Medicare billing, Illinois enrollment
- 530 clinicians in this Medicare group
Farmington, MO 63640
- Reassigned Medicare billing, Missouri enrollment
- 595 clinicians in this Medicare group
Springfield, MO 65807
- Reassigned Medicare billing, Missouri enrollment
- 39 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.
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 Jennifer Gray's NPI number?
The NPI number for Jennifer Gray is 1447711171. It was assigned to this individual provider in the NPPES registry on March 26, 2019.
Where is Jennifer Gray located?
Jennifer Gray practices at 1 Childrens Pl Div Ped Cardiology, Saint Louis, MO 63110. The listed phone number is (314) 454-6095.
What is Jennifer Gray's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.
Is Jennifer Gray enrolled in Medicare?
Yes. Jennifer Gray is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Jennifer Gray's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jennifer Gray reassigns Medicare benefits to 4 organizations: Washington University (Saint Louis, MO), Washington University Physicians In Illinois, Inc (Saint Louis, MO), Saint Francis Medical Center (Farmington, MO) and Lester E Cox Medical Centers (Springfield, 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 Jennifer Gray's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jennifer Gray accept?
Health plans from Oscar Insurance Company list Jennifer Gray 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 Jennifer Gray was last updated on June 16, 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. Jennifer Margery Gray, MD · NPI 1447711171
Pediatric Cardiology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since March 26, 2019.
## Identity
- **NPI:** 1447711171 (Entity type: Individual)
- **Enumerated:** March 26, 2019
- **Primary specialty:** Pediatrics - Pediatric Cardiology · taxonomy 2080P0202X
- **State license:** 2022017769 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 CHILDRENS PL, DIV PED CARDIOLOGY, Saint Louis, MO 63110-1002
- **Phone:** (314) 454-6095 · **Fax:** (314) 884-6008
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Washington University (NPI 1194765685, Saint Louis, MO); Washington University Physicians In Illinois, Inc (NPI 1174015515, Saint Louis, MO); Saint Francis Medical Center (NPI 1013585561, Farmington, MO); Lester E Cox Medical Centers (NPI 1851799555, Springfield, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical College Of Wisconsin, class of 2019
## Record status
- **NPPES last updated:** June 16, 2026
- **Other identifiers:** Medicaid 200112271 (MO)
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Source: [NPI Profile](https://npiprofile.com/npi/1447711171) · Data from the CMS NPPES public registry.