DR. MAUREEN ELIZABETH GROSS MD
NPI 1629365689
Emergency Medicine in Saint Louis, MO
About Dr. Maureen Elizabeth Gross Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MAUREEN ELIZABETH GROSS MD (NPI 1629365689) is an individual emergency medicine provider in Saint Louis, Missouri, licensed in Missouri (20144037732) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS, is affiliated with Touro Infirmary, and is a graduate of Creighton University School Of Medicine (2011).
NPPES Registry Identity
Specialties & Licenses 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
Dr. Maureen Elizabeth Gross 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 Reassignments
6Medicare enrollment records show Maureen Gross reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
West Monroe, LA 71292
- Reassigned Medicare billing, Louisiana enrollment
- 4,559 clinicians in this Medicare group
La Place, LA 70068
- Reassigned Medicare billing, Louisiana enrollment
- 120 clinicians in this Medicare group
Kenner, LA 70065
- Reassigned Medicare billing, Louisiana enrollment
- 181 clinicians in this Medicare group
New Orleans, LA 70112
- Reassigned Medicare billing, Louisiana enrollment
- 98 clinicians in this Medicare group
New Orleans, LA 70115
- Reassigned Medicare billing, Louisiana enrollment
- 240 clinicians in this Medicare group
New Orleans, LA 70115
- Reassigned Medicare billing, Louisiana enrollment
- 112 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 4
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Touro Infirmary
Acute Care Hospitals · New Orleans, LAPhysician 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
SAINT LOUIS, MO 63110
SAINT LOUIS, MO 63110
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 Maureen Gross's NPI number?
The NPI number for Maureen Gross is 1629365689. It was assigned to this individual provider in the NPPES registry on June 28, 2011.
Where is Maureen Gross located?
Maureen Gross practices at 400 S Kingshighway Blvd, Saint Louis, MO 63110. The listed phone number is (314) 362-9123.
What is Maureen Gross's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Maureen Gross enrolled in Medicare?
Yes. Maureen Gross 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 Maureen Gross's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maureen Gross reassigns Medicare benefits to 6 organizations: Ochsner Clinic LLC (West Monroe, LA), St. John Emergency Group LLC (La Place, LA), Kenner Emergency Group LLC (Kenner, LA), Louisiana State University School Of Medicine In New Orleans Faculty (New Orleans, LA), Belle Chasse Emergency Group LLC (New Orleans, LA) and 1 more organization, 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 Maureen Gross's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Maureen Gross accept?
Health plans from CHRISTUS Health Plan list Maureen Gross 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 Maureen Gross affiliated with any hospitals?
According to CMS data, Maureen Gross is affiliated with Touro Infirmary.
When was this NPI record last updated?
The NPPES record for Maureen Gross was last updated on December 9, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years 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. Maureen Elizabeth Gross, MD · NPI 1629365689
Emergency Medicine physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 28, 2011.
## Identity
- **NPI:** 1629365689 (Entity type: Individual)
- **Enumerated:** June 28, 2011
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 20144037732 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 S KINGSHIGHWAY BLVD, Saint Louis, MO 63110-1014
- **Phone:** (314) 362-9123 · **Fax:** (314) 747-3338
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Ochsner Clinic LLC (NPI 1932598695, West Monroe, LA); St. John Emergency Group LLC (NPI 1265401509, La Place, LA); Kenner Emergency Group LLC (NPI 1013986546, Kenner, LA); Louisiana State University School Of Medicine In New Orleans Faculty (NPI 1275984973, New Orleans, LA); Belle Chasse Emergency Group LLC (NPI 1851714075, New Orleans, LA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Creighton University School Of Medicine, class of 2011
## Record status
- **NPPES last updated:** December 9, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1629365689) · Data from the CMS NPPES public registry.