ZACHARY BALLEK AGACNP-BC
NPI 1437878071
Nurse Practitioner - Acute Care in Saint Louis, MO
About Zachary Ballek Agacnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ZACHARY BALLEK AGACNP-BC (NPI 1437878071) is an individual acute care provider in Saint Louis, Missouri, licensed in Missouri (2022030314) and active in the NPI registry since August 2022. He is enrolled in Medicare PECOS, is affiliated with Ssm Health Saint Louis University Hospital, and is a graduate of Other (2021).
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
Zachary Ballek Agacnp-bc 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 Zachary Ballek 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 63104
- Reassigned Medicare billing, Missouri enrollment
- 1,294 clinicians in this Medicare group
Saint Louis, MO 63110
- Reassigned Medicare billing, Missouri enrollment
- 194 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ssm Health Saint Louis University Hospital
Acute Care Hospitals · Saint Louis, MOPoplar Bluff Regional Medical Center
Acute Care Hospitals · Poplar Bluff, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 63104
SAINT LOUIS, MO 63104
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 Zachary Ballek's NPI number?
The NPI number for Zachary Ballek is 1437878071. It was assigned to this individual provider in the NPPES registry on August 25, 2022.
Where is Zachary Ballek located?
Zachary Ballek practices at 1201 S Grand Blvd, Saint Louis, MO 63104. The listed phone number is (314) 977-4750.
What is Zachary Ballek's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Zachary Ballek enrolled in Medicare?
Yes. Zachary Ballek 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 Zachary Ballek's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zachary Ballek reassigns Medicare benefits to 2 organizations: Ssm Health Care Group (Saint Louis, MO) and Slh Physicians 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 Zachary Ballek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Zachary Ballek accept?
Health plans from Anthem Blue Cross and Blue Shield list Zachary Ballek 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 Zachary Ballek affiliated with any hospitals?
According to CMS data, Zachary Ballek is affiliated with Ssm Health Saint Louis University Hospital and Poplar Bluff Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Zachary Ballek was last updated on August 25, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Zachary Ballek, AGACNP-BC · NPI 1437878071
Acute Care physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since August 25, 2022.
## Identity
- **NPI:** 1437878071 (Entity type: Individual)
- **Enumerated:** August 25, 2022
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** 2022030314 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1201 S GRAND BLVD, Saint Louis, MO 63104-1016
- **Phone:** (314) 977-4750
## 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): Ssm Health Care Group (NPI 1306589544, Saint Louis, MO); Slh Physicians LLC (NPI 1881668051, Saint Louis, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** August 25, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1437878071) · Data from the CMS NPPES public registry.