Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Tonya D Buchholz, CNP
Nurse Practitioner in Madison, SD · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538311352
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Registry record
Entity type Individual (Type 1)
Name Tonya D Buchholz
Credential CNP
Sex Female
Practice address 323 Sw 10th Street, Madison, SD, 57042
Phone (605) 256-6551
Fax (605) 256-6469
Enumeration date Oct 13, 2008
Last updated in NPPES Jan 10, 2019
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License CP000546 (SD) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 6831610 | Medicaid | SD | - |
| P00664632 | Other | SD | RAILROAD MEDICARE |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
How do I verify Tonya Buchholz's NPI record?
Cross-check NPI 1538311352 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1538311352 active?
Yes, as of the latest NPPES snapshot, NPI 1538311352 is active (record last updated 2019-01-10).
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-01-10.