NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

John Duncan Tillack, DO

Family Medicine Physician in Branson, MO · enumerated 2020 · practices at Skaggs Community Hospital Association.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1770112385

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name John Duncan Tillack
Credential DO
Sex Male
Practice address 525 Branson Landing Blvd Ste 201a, Branson, MO, 65616
Fax (417) 348-8007
Enumeration date Apr 6, 2020
Last updated in NPPES Dec 2, 2024

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 2021025619 (MO) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1770112385 active?
Yes, as of the latest NPPES snapshot, NPI 1770112385 is active (record last updated 2024-12-02).
How do I verify John Tillack's NPI record?
Cross-check NPI 1770112385 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-12-02.