DR. JOHN HENRY SLADKY M.D.
NPI 1215905252
Psychiatry & Neurology - Neuromuscular Medicine in San Antonio, TX
About Dr. John Henry Sladky M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN HENRY SLADKY M.D. (NPI 1215905252) is an individual neuromuscular medicine provider in San Antonio, Texas, licensed in Texas (M6885) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS and is a graduate of Medical College Of Wisconsin (1999).
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
Dr. John Henry Sladky M.d. 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
3Medicare enrollment records show John Sladky reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 9 clinicians in this Medicare group
San Antonio, TX 78229
- Reassigned Medicare billing, Texas enrollment
- 2,397 clinicians in this Medicare group
Wisconsin Rapids, WI 54494
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Aspirus Medical Group, Inc.
- 415 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 2
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.
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.
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
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 John Sladky's NPI number?
The NPI number for John Sladky is 1215905252. It was assigned to this individual provider in the NPPES registry on March 8, 2006.
Where is John Sladky located?
John Sladky practices at 3551 Roger Brooke Dr Brooke Army Medical Center Dept Of Neurology, San Antonio, TX 78234. The listed phone number is (210) 916-2203.
What is John Sladky's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neuromuscular Medicine, with taxonomy code 2084N0008X.
Is John Sladky enrolled in Medicare?
Yes. John Sladky 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 John Sladky's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Sladky reassigns Medicare benefits to 3 organizations: Saspine, LLC (San Antonio, TX), University Of Texas Health Science Center At San Antonio (San Antonio, TX) and Aspirus Riverview Hospital & Clinics, Inc. (Wisconsin Rapids, WI). 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 John Sladky's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Sladky accept?
Health plans from Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc. and Oscar Insurance Company list John Sladky 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 John Sladky was last updated on June 6, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.