Thomas A. Tyree, M.D.
Internal Medicine Physician · Saint Charles, MO
Thomas A. Tyree, M.D. is an internal medicine physician with a practice address in Saint Charles, Missouri, and NPI 1841251048, issued on Mar 29, 2006. Check the license (Missouri R2P42, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Thomas A. Tyree
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- R2P42 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1475 Kisker RD, Saint Charles, MO 63304
- Phone
- (636) 498-5850
- Enumerated
- Mar 29, 2006
- Record last updated
- Nov 16, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (636) 669-2401
- Medicaid ID
- 203043609 MO
- Medicare enrollment
- Enrolled (PECOS I20100723000019); accepts Medicare assignment
- Medical or professional school
- St. Louis College Of Physicians And Surgeons, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,604 in Missouri → Look up another NPI →
Also registered at 1475 Kisker RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamshed Agha, MDHematology & Oncology Physician1720041395
- Pamela Breshears, P.T.Physical Therapist1609189208
- Matthew Filla, MPTPhysical Therapist1710290408
- Patricia FranscavitchNutritionist1609919968
- Anna Fu, MDRadiation Oncology Physician1982638003
- Christine Geraghty, M.D.Diagnostic Radiology Physician1992738264
Verify Thomas A. Tyree 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 R2P42Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.3 times the Medicare Part D claims of the average internal medicine physician in 2024
13,731 Medicare Part D claims for 1,068 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 609 claims were for opioids.
Most prescribed
- Amlodipine Besylate751 claims
- Levothyroxine Sodium581 claims
- Atorvastatin Calcium568 claims
- Rosuvastatin Calcium530 claims
- Metoprolol Succinate375 claims
- Alprazolam374 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.
Industry payments in 2024: $438.72
4 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Aging Well Health Care, LLCSaint Louis, MO
- Ssm Medical Group IncSaint Charles, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas A. Tyree among 2,604 internal medicine physician records in Missouri
Thomas A. Tyree, M.D. 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 59% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated1988 · median 2006 among the 1,443 with a school on file
- Record last updated2020 · 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).
36 internal medicine physician records list a practice address in Saint Charles
They are 36 of the 1,547 NPPES records with a practice address in Saint Charles, and 2,604 internal medicine physician records in Missouri.
All 2,604 in Missouri → Every provider in Saint Charles → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Thomas Gutmann, M.D.Saint Charles, MO 633041437165834
- Raymond Hu, M.D.Saint Charles, MO 633041780645960
- Mehreen Khann, M.D.Weldon Spring, MO 633041942292420
- Edith Levine, M.D.Saint Charles, MO 633041366408486
- Rebecca Melvin, D.O.Saint Charles, MO 633041609079409
- Siriwat Payow, MDSt Charles, MO 633041225132830
- Richard Vaughn, M.D.Saint Charles, MO 633041134180607
- Haseena Mazhar Ali, MDSaint Charles, MO 633031851738769
Common questions
What is Thomas A. Tyree, M.D.'s NPI number?
Thomas A. Tyree, M.D.'s National Provider Identifier (NPI) is 1841251048, issued on Mar 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas A. Tyree, M.D. located?
The NPPES record lists a practice address at 1475 Kisker RD, Saint Charles, MO, 63304. Phone: (636) 498-5850. Providers update this record themselves, so call before visiting.
How can I verify Thomas A. Tyree, M.D.'s license?
NPPES lists Missouri license number R2P42, 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 Thomas A. Tyree, M.D. prescribe under Medicare Part D?
In 2024, Thomas A. Tyree, M.D. had 13,731 Medicare Part D claims for 1,068 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.