John A. Nash, M.D.
Cardiovascular Disease Physician · Saint Louis, MO
John A. Nash, M.D. is a cardiovascular disease physician with a practice address in Saint Louis, Missouri, and NPI 1336125293, issued on Dec 21, 2005. Check the license (Missouri RP275, 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 A. Nash
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- RP275 MO
Self-reported in NPPES; status is on the state search - Practice location
- 625 S New Ballas RD, Saint Louis, MO 63141
- Phone
- (314) 251-1700
- Enumerated
- Dec 21, 2005
- Record last updated
- Aug 16, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (314) 251-1701
- Medicaid ID
- 207966037 MO
- Medicare enrollment
- Enrolled (PECOS I20040714000064); accepts Medicare assignment
- Medical or professional school
- Vanderbilt University School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 446 in Missouri → Look up another NPI →
Also registered at 625 S New Ballas RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mark Blucher, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1568433951
- John Brunts, MDCardiovascular Disease Physician1578555066
- Susan Buettner-Miller, ANPAdult Health Nurse Practitioner1669412359
- Jeffrey Ciaramita, M.D.Cardiovascular Disease Physician1679653323
- Christopher Cundiff, M.D.Emergency Medicine Physician1689908105
- Bruce Czarnik, M.D.Cardiovascular Disease Physician1114974532
Verify John A. Nash 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 RP275Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average cardiovascular disease physician in 2024
9,095 Medicare Part D claims for 961 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Atorvastatin Calcium919 claims
- Metoprolol Succinate861 claims
- Eliquis757 claims
- Spironolactone504 claims
- Lisinopril475 claims
- Amlodipine Besylate396 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: $128.54
7 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 16,686 providers of this specialty with any payment received $3,819.56 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 one group practice
- Mercy Clinic Heart And Vascular LLCSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John A. Nash among 446 cardiovascular disease physician records in Missouri
John A. Nash, M.D. 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 fileYes · 66% of these records are
- Graduated1988 · median 1998 among the 293 with a school on file
- Record last updated2011 · 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
- John Brunts, MDSaint Louis, MO 631411578555066
- Patricia Cole, MDSaint Louis, MO 631411821081712
- Louis Deane, MDSaint Louis, MO 631411144212630
- Robert Ferrara, MDSaint Louis, MO 631411245222777
- Mary Gamache, M.D.Saint Louis, MO 631411639176860
- Paul Howard, MDSaint Louis, MO 631411972506673
- John Hubert, M.D.Saint Louis, MO 631411902882202
- Mark Milunski, MDSaint Louis, MO 631411255338893
Common questions
What is John A. Nash, M.D.'s NPI number?
John A. Nash, M.D.'s National Provider Identifier (NPI) is 1336125293, issued on Dec 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John A. Nash, M.D. located?
The NPPES record lists a practice address at 625 S New Ballas RD, Saint Louis, MO, 63141. Phone: (314) 251-1700. Providers update this record themselves, so call before visiting.
How can I verify John A. Nash, M.D.'s license?
NPPES lists Missouri license number RP275, 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 A. Nash, M.D. prescribe under Medicare Part D?
In 2024, John A. Nash, M.D. had 9,095 Medicare Part D claims for 961 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.