SUSAN J. GRAY MD
NPI 1003174004
Family Medicine in Fenton, MO
About Susan J. Gray Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SUSAN J. GRAY MD (NPI 1003174004) is an individual family medicine provider in Fenton, Missouri, licensed in Missouri (2016009600) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital South, and maintains a secondary practice location in Spartanburg.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Location 1
Other Identifiers 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 and accepts Medicare assignment
Susan J. Gray 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 Susan Gray reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fenton, MO 63026
- Reassigned Medicare billing, Missouri enrollment
- 697 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.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital South
Acute Care Hospitals · Saint Louis, MOSsm St Clare Health Center
Acute Care Hospitals · Fenton, MOSsm Health St Mary's Hospital - St Louis
Acute Care Hospitals · Richmond Heights, MOMissouri Baptist Medical Center
Acute Care Hospitals · Town And Country, MOSt Lukes Hospital
Acute Care Hospitals · Chesterfield, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63026 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 5
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FENTON, MO 63026
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 Susan Gray's NPI number?
The NPI number for Susan Gray is 1003174004. It was assigned to this individual provider in the NPPES registry on April 26, 2012. The provider is also known as Susan J Davis.
Where is Susan Gray located?
Susan Gray practices at 1345 Smizer Mill Rd Ste 1100, Fenton, MO 63026. The listed phone number is (636) 496-5023.
What is Susan Gray's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Susan Gray enrolled in Medicare?
Yes. Susan Gray 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 Susan Gray's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Susan Gray reassigns Medicare benefits to Ssm Medical Group, Inc. (Fenton, 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 Susan Gray's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Susan Gray 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 3 other insurers list Susan 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.
Is Susan Gray affiliated with any hospitals?
According to CMS data, Susan Gray is affiliated with Mercy Hospital South, Ssm St Clare Health Center, Ssm Health St Mary's Hospital - St Louis, Missouri Baptist Medical Center and St Lukes Hospital.
When was this NPI record last updated?
The NPPES record for Susan Gray was last updated on March 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Susan J. Gray, MD · NPI 1003174004
Family Medicine physician in Fenton, Missouri. Individual provider, active in the CMS NPPES registry since April 26, 2012.
## Identity
- **NPI:** 1003174004 (Entity type: Individual)
- **Enumerated:** April 26, 2012
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 2016009600 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1345 SMIZER MILL RD STE 1100, Fenton, MO 63026-7305
- **Phone:** (636) 496-5023
## 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:** Ssm Medical Group, Inc. (NPI 1700966207, Fenton, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Wake Forest University School Of Medicine, class of 2012
## Record status
- **NPPES last updated:** March 19, 2025
- **Other identifiers:** Medicaid 347413 (SC); Other P01593526 (SC)
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Source: [NPI Profile](https://npiprofile.com/npi/1003174004) · Data from the CMS NPPES public registry.