MS. TABITHA FOGG GRUSKOWSKI ACNP
NPI 1386446144
Nurse Practitioner - Gerontology in Saint Louis, MO
About Ms. Tabitha Fogg Gruskowski Acnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. TABITHA FOGG GRUSKOWSKI ACNP (NPI 1386446144) is an individual gerontology provider in Saint Louis, Missouri, licensed in Missouri (2025009473) and active in the NPI registry since March 2025. She is enrolled in Medicare PECOS, is affiliated with Barnes Jewish Hospital, and is a graduate of Other (2024).
NPPES Registry Identity
Specialties & Licenses
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
Ms. Tabitha Fogg Gruskowski Acnp 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
2Medicare enrollment records show Tabitha Gruskowski reassigns Medicare billing to 2 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
- 1,133 clinicians in this Medicare group
Birmingham, AL 35294
- Reassigned Medicare billing, Alabama enrollment
- 4,494 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.
Barnes Jewish Hospital
Acute Care Hospitals · Saint Louis, MOPhysician 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
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 Tabitha Gruskowski's NPI number?
The NPI number for Tabitha Gruskowski is 1386446144. It was assigned to this individual provider in the NPPES registry on March 25, 2025.
Where is Tabitha Gruskowski located?
Tabitha Gruskowski practices at 1 Barnes Jewish Hospital Plz Div Im Hospitalist, Saint Louis, MO 63110. The listed phone number is (314) 362-1700.
What is Tabitha Gruskowski's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.
Is Tabitha Gruskowski enrolled in Medicare?
Yes. Tabitha Gruskowski 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 Tabitha Gruskowski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tabitha Gruskowski reassigns Medicare benefits to 2 organizations: Washington University (Saint Louis, MO) and University Of Alabama Health Services Foundation, PC (Birmingham, AL). 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 Tabitha Gruskowski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tabitha Gruskowski accept?
Health plans from Ambetter Health, Ambetter of Alabama, Ambetter of Tennessee and Blue Cross and Blue Shield of Alabama list Tabitha Gruskowski 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 Tabitha Gruskowski affiliated with any hospitals?
According to CMS data, Tabitha Gruskowski is affiliated with Barnes Jewish Hospital.
When was this NPI record last updated?
The NPPES record for Tabitha Gruskowski was last updated on June 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Ms. Tabitha Fogg Gruskowski, ACNP · NPI 1386446144
Gerontology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since March 25, 2025.
## Identity
- **NPI:** 1386446144 (Entity type: Individual)
- **Enumerated:** March 25, 2025
- **Primary specialty:** Nurse Practitioner - Gerontology · taxonomy 363LG0600X
- **State license:** 2025009473 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1 BARNES JEWISH HOSPITAL PLZ, DIV IM HOSPITALIST, Saint Louis, MO 63110-1003
- **Phone:** (314) 362-1700 · **Fax:** (314) 362-9878
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Washington University (NPI 1992746903, Saint Louis, MO); University Of Alabama Health Services Foundation, PC (NPI 1366638330, Birmingham, AL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** June 6, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1386446144) · Data from the CMS NPPES public registry.