Zachary Thomas Siress, DO
Internal Medicine Physician · Saint Joseph, MO
Zachary Thomas Siress, DO is an internal medicine physician with a practice address in Saint Joseph, Missouri, and NPI 1407598022, issued on Apr 13, 2022. Check the license (Missouri 2025053213, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Zachary Thomas Siress
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 2025053213 MO
Self-reported in NPPES; status is on the state search - Practice location
- 5514 Corporate Dr Ste 120, Saint Joseph, MO 64507
- Phone
- (816) 271-1350
- Enumerated
- Apr 13, 2022
- Record last updated
- Apr 7, 2026
- Fax
- (816) 271-1355
- Medicare enrollment
- Enrolled (PECOS I20260413001456); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,604 in Missouri → Look up another NPI →
Also registered at 5514 Corporate Dr Ste 120
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Johanne AdlerInternal Medicine Physician1366939480
- Sarah Arnold, PNPPediatric Nurse Practitioner1255610606
- Crystal AshburnFamily Nurse Practitioner1750870846
- Jamie Ball, MDPediatrics Physician1053723783
- Ellis Berkowitz, M.D.02Internal Medicine Physician1124058425
- Karam Hadid, DOInternal Medicine Physician1386219442
Verify Zachary Thomas Siress 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 2025053213Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average internal medicine physician in 2024
676 Medicare Part D claims for 57 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Gabapentin28 claims
- Atorvastatin Calcium26 claims
- Furosemide24 claims
- Omeprazole21 claims
- Buspirone Hcl20 claims
- Trulicity20 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.
Zachary Thomas Siress among 2,604 internal medicine physician records in Missouri
Zachary Thomas Siress, DO is one of 2,604 internal medicine physician records with a practice address in Missouri. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 83% of them.
- NPI issued2022 · 83% of these records are older, 13% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2025 · median 2006 among the 1,443 with a school on file
- Record last updated2026 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
34 internal medicine physician records list a practice address in Saint Joseph
They are 34 of the 1,219 NPPES records with a practice address in Saint Joseph, and 2,604 internal medicine physician records in Missouri.
All 2,604 in Missouri → Every provider in Saint Joseph → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Johanne AdlerSaint Joseph, MO 645071366939480
- Ellis Berkowitz, M.D.02Saint Joseph, MO 645071124058425
- Amandeep Dhatt, M.D.Saint Joseph, MO 645071861642357
- Karam Hadid, DOSaint Joseph, MO 645071386219442
- Thomas Holda, M.D.Saint Joseph, MO 645071740358282
- Satinderjit Oberoi, M.D.Saint Joseph, MO 645071154521813
- Federico Rivas-Gotz, M.D.Saint Joseph, MO 645071053354092
- Gita Sprague, M.D.Saint Joseph, MO 645071033149240
Common questions
What is Zachary Thomas Siress, DO's NPI number?
Zachary Thomas Siress, DO's National Provider Identifier (NPI) is 1407598022, issued on Apr 13, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Zachary Thomas Siress, DO located?
The NPPES record lists a practice address at 5514 Corporate Dr Ste 120, Saint Joseph, MO, 64507. Phone: (816) 271-1350. Providers update this record themselves, so call before visiting.
How can I verify Zachary Thomas Siress, DO's license?
NPPES lists Missouri license number 2025053213, 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 Zachary Thomas Siress, DO prescribe under Medicare Part D?
In 2024, Zachary Thomas Siress, DO had 676 Medicare Part D claims for 57 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.