John Duncan Tillack, DO
Family Medicine Physician · Branson, MO
John Duncan Tillack, DO is a family medicine physician with a practice address in Branson, Missouri, and NPI 1770112385, issued on Apr 6, 2020. Check the license (Missouri 2021025619, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- John Duncan Tillack
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 2021025619 MO
Self-reported in NPPES; status is on the state search - Practice location
- 525 Branson Landing Blvd Ste 201A, Branson, MO 65616
- Phone
- (417) 335-7128
- Enumerated
- Apr 6, 2020
- Record last updated
- Dec 2, 2024
- Fax
- (417) 348-8007
- Medicare enrollment
- Enrolled (PECOS I20211103000710); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 2,991 in Missouri → Look up another NPI →
Also registered at 525 Branson Landing Blvd Ste 201A
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Duncan Tillack in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2021025619Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average family medicine physician in 2024
313 Medicare Part D claims for 137 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Pantoprazole Sodium25 claims
- Lisinopril17 claims
- Atorvastatin Calcium14 claims
- Prednisone14 claims
- Doxycycline Hyclate13 claims
- Metoprolol Succinate13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Lester E Cox Medical CentersSpringfield, MO
- Skaggs Community Hospital AssociationForsyth, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Duncan Tillack among 2,991 family medicine physician records in Missouri
John Duncan Tillack, DO is one of 2,991 family medicine physician records with a practice address in Missouri. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 84% of them.
- NPI issued2020 · 84% of these records are older, 12% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2020 · median 2006 among the 1,778 with a school on file
- Record last updated2024 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
40 family medicine physician records list a practice address in Branson
They are 40 of the 486 NPPES records with a practice address in Branson, and 2,991 family medicine physician records in Missouri.
All 2,991 in Missouri → Every provider in Branson → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- David Afshar, DOBranson, MO 656161356385553
- Lynn Allison, M.D.Branson, MO 656161497748487
- James Cesar, D.O.Branson, MO 656161710931878
- Brian Clonts, M.D.Branson, MO 656161992727473
- Roy Gillispie, MDBranson, MO 656161023052115
- Max Goodwin, M.D.Branson, MO 656161851350052
- Richard Griffith, MDBranson, MO 656161275521262
- Robert Hevel, D.O.Branson, MO 656161982683538
Common questions
What is John Duncan Tillack, DO's NPI number?
John Duncan Tillack, DO's National Provider Identifier (NPI) is 1770112385, issued on Apr 6, 2020. An NPI identifies a provider in billing; it is not a license.
Where is John Duncan Tillack, DO located?
The NPPES record lists a practice address at 525 Branson Landing Blvd Ste 201A, Branson, MO, 65616. Phone: (417) 335-7128. Providers update this record themselves, so call before visiting.
How can I verify John Duncan Tillack, DO's license?
NPPES lists Missouri license number 2021025619, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Duncan Tillack, DO prescribe under Medicare Part D?
In 2024, John Duncan Tillack, DO had 313 Medicare Part D claims for 137 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.