Michael Allen Twyman, MD
Cardiovascular Disease Physician · Saint Louis, MO
Michael Allen Twyman, MD is a cardiovascular disease physician with a practice address in Saint Louis, Missouri, and NPI 1053395533, issued on Nov 30, 2005. Check the license (Missouri 2012009166, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Michael Allen Twyman
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 2012009166 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1034 S Brentwood Blvd Ste 1230, Saint Louis, MO 63117
- Phone
- (314) 635-9028
- Enumerated
- Nov 30, 2005
- Record last updated
- Sep 15, 2023
- Fax
- (314) 293-6738
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 446 in Missouri → Look up another NPI →
Verify Michael Allen Twyman 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 2012009166Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
1,593 Medicare Part D claims for 176 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Ezetimibe294 claims
- Rosuvastatin Calcium197 claims
- Amlodipine Besylate148 claims
- Telmisartan100 claims
- Repatha Sureclick95 claims
- Ramipril91 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.
Michael Allen Twyman among 446 cardiovascular disease physician records in Missouri
Michael Allen Twyman, MD is one of 446 cardiovascular disease physician records with a practice address in Missouri. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 84% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2023 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Missouri
There are 446 cardiovascular disease physician records in Missouri.
All 446 in Missouri → Every provider in Saint Louis → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Anjali Desai, DOSaint Louis, MO 631171295224475
- Mark Friedman, M.D.Saint Louis, MO 631171932311974
- John Kilgore, M.D.Saint Louis, MO 631171013916121
- Paul LarsenSaint Louis, MO 631171427315423
- Jacob Levy, MDRichmond Heights, MO 631171679594675
- John Samet, MDSaint Louis, MO 631171831145572
- Stephanie White, D.O.Saint Louis, MO 631171588863906
- Richard Whiting, M.D.Saint Louis, MO 631171033118039
Common questions
What is Michael Allen Twyman, MD's NPI number?
Michael Allen Twyman, MD's National Provider Identifier (NPI) is 1053395533, issued on Nov 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Michael Allen Twyman, MD located?
The NPPES record lists a practice address at 1034 S Brentwood Blvd Ste 1230, Saint Louis, MO, 63117. Phone: (314) 635-9028. Providers update this record themselves, so call before visiting.
How can I verify Michael Allen Twyman, MD's license?
NPPES lists Missouri license number 2012009166, 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 Michael Allen Twyman, MD prescribe under Medicare Part D?
In 2024, Michael Allen Twyman, MD had 1,593 Medicare Part D claims for 176 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.