NPPES file of Aug 9, 2026

Jason M. Zack, M.D.

Dermatology Physician · Fort Leonard Wood, MO

Jason M. Zack, M.D. is a dermatology physician with a practice address in Fort Leonard Wood, Missouri, and NPI 1255745691, issued on Jun 13, 2014. Check the license on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1255745691
Name
Jason M. Zack
Credential
M.D.
Primary taxonomy
Dermatology Physician 207N00000X
License numbers
0101259277 VA
MD53344 IA
Self-reported in NPPES; status is on the state search
Practice location
4430 Missouri Ave, Fort Leonard Wood, MO 65473
Phone
(573) 596-1769
Enumerated
Jun 13, 2014
Record last updated
Jan 30, 2025
Fax
(573) 596-1783
Medicare enrollment
Enrolled (PECOS I20250414000691); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest dermatology physician records → All 278 in Missouri → Look up another NPI →

Also registered at 4430 Missouri Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Alexandra Acquaviva, MDFamily Medicine Physician1336896364
  2. Nancy Alavanja, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1245694470
  3. Juan Alcaide, MDPediatrics Physician1992371769
  4. Benjamin Althuisius, CRNACertified Registered Nurse Anesthetist1669998530
  5. Diana Alvarado, LCSWClinical Social Worker1700418167
  6. Rachel Armstrong, MDEmergency Medicine Physician1558771832

Verify Jason M. Zack in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMissouri Board of Registration for the Healing ArtsCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Missouri license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Winneshiek Medical CenterDecorah, IA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Jason M. Zack among 278 dermatology physician records in Missouri

Jason M. Zack, M.D. is one of 278 dermatology physician records with a practice address in Missouri. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 65% of them.

  • NPI issued2014 · 65% of these records are older, 31% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2014 · median 2008 among the 190 with a school on file
  • Record last updated2025 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Missouri

There are 278 dermatology physician records in Missouri.

All 278 in Missouri → Every provider in Fort Leonard Wood → Dermatology Physician nationwide →

The 8 dermatology physician records with the nearest ZIP codes

  1. Joseph Malters, M.D.Rolla, MO 654011689760233
  2. William Stoecker, M.D.Rolla, MO 654011104919851
  3. Murphy Mastin, MDBolivar, MO 656131588159917
  4. Douglas Leone, M.D.Branson, MO 656161255523296
  5. Christy Rainey, M.D.Branson, MO 656161790999100
  6. Amy Thorne, DOBranson, MO 656161265878789
  7. Osaigbokan Aihie, MDColumbia, MO 652121790476554
  8. Anna Ballenger, MDColumbia, MO 652121104566199

Common questions

What is Jason M. Zack, M.D.'s NPI number?

Jason M. Zack, M.D.'s National Provider Identifier (NPI) is 1255745691, issued on Jun 13, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Jason M. Zack, M.D. located?

The NPPES record lists a practice address at 4430 Missouri Ave, Fort Leonard Wood, MO, 65473. Phone: (573) 596-1769. Providers update this record themselves, so call before visiting.

How can I verify Jason M. Zack, M.D.'s license?

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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.