JOHN DUNCAN TILLACK DO
NPI 1770112385
Family Medicine in Branson, MO
About John Duncan Tillack Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN DUNCAN TILLACK DO (NPI 1770112385) is an individual family medicine provider in Branson, Missouri, licensed in Missouri (2021025619) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with Cox Medical Centers, and maintains a secondary practice location in Monett.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
John Duncan Tillack Do 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
4Medicare enrollment records show John Tillack reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Branson, MO 65616
- Reassigned Medicare billing, Missouri enrollment
- 91 clinicians in this Medicare group
Shell Knob, MO 65747
- Reassigned Medicare billing, Missouri enrollment
- 457 clinicians in this Medicare group
Springfield, MO 65807
- Reassigned Medicare billing, Missouri enrollment
- 109 clinicians in this Medicare group
Monett, MO 65708
- Reassigned Medicare billing, Missouri enrollment
- Also billed through NPI 1669687125 (Missouri)
- 163 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 5
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.
Cox Medical Centers
Acute Care Hospitals · Springfield, MOCox Medical Center Branson
Acute Care Hospitals · Branson, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 65616 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BRANSON, MO 65616
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 Tillack's NPI number?
The NPI number for John Tillack is 1770112385. It was assigned to this individual provider in the NPPES registry on April 6, 2020.
Where is John Tillack located?
John Tillack practices at 525 Branson Landing Blvd Ste 201A, Branson, MO 65616. The listed phone number is (417) 335-7128.
What is John Tillack's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is John Tillack enrolled in Medicare?
Yes. John Tillack 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 Tillack's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Tillack reassigns Medicare benefits to 4 organizations: Skaggs Community Hospital Association (Branson, MO), Lester E Cox Medical Centers (Shell Knob, MO), Lester E Cox Medical Centers (Springfield, MO) and Cox-Monett Hospital, Inc. (Monett, 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 John Tillack's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Tillack accept?
Health plans from Cox HealthPlans and Oscar Insurance Company list John Tillack 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 John Tillack affiliated with any hospitals?
According to CMS data, John Tillack is affiliated with Cox Medical Centers and Cox Medical Center Branson.
When was this NPI record last updated?
The NPPES record for John Tillack was last updated on December 2, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.
# John Duncan Tillack, DO · NPI 1770112385
Family Medicine physician in Branson, Missouri. Individual provider, active in the CMS NPPES registry since April 6, 2020.
## Identity
- **NPI:** 1770112385 (Entity type: Individual)
- **Enumerated:** April 6, 2020
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 2021025619 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 525 BRANSON LANDING BLVD STE 201A, Branson, MO 65616-2052
- **Phone:** (417) 335-7128 · **Fax:** (417) 348-8007
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Skaggs Community Hospital Association (NPI 1184122525, Branson, MO); Lester E Cox Medical Centers (NPI 1144312497, Shell Knob, MO); Lester E Cox Medical Centers (NPI 1407210917, Springfield, MO); Cox-Monett Hospital, Inc. (NPI 1194757500, Monett, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** December 2, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1770112385) · Data from the CMS NPPES public registry.