Daniel A. Rey, M.D.
Critical Care Medicine (Internal Medicine) Physician · Saint Louis, MO
Daniel A. Rey, M.D. is a critical care medicine (internal medicine) physician with a practice address in Saint Louis, Missouri, and NPI 1336288356, issued on Feb 6, 2007. Check the license (Missouri R9J16, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Daniel A. Rey
- Credential
- M.D.
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- R9J16 MO
Self-reported in NPPES; status is on the state search - Practice location
- 615 S New Ballas RD, Saint Louis, MO 63141
- Phone
- (314) 251-4283
- Enumerated
- Feb 6, 2007
- Record last updated
- Feb 7, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (314) 251-7247
- Medicaid ID
- 203261029 MO
- Medicare enrollment
- Enrolled (PECOS I20050524000713); accepts Medicare assignment
- Medical or professional school
- University Of South Florida College Of Medicine, 1987
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 178 in Missouri → Look up another NPI →
Also registered at 615 S New Ballas RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Wael Abduljaber, MDInternal Medicine Physician1174101489
- Frederick Abele, M.D.Anesthesiology Physician1346245354
- Jane Abele, CRNACertified Registered Nurse Anesthetist1578564647
- Joy Abu-Shanab, PHARM. D, BCPSPharmacotherapy Pharmacist1568532216
- Yaseen Adam, MDHospitalist Physician1932278587
Verify Daniel A. Rey 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 R9J16Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.1 times the Medicare Part D claims of the average critical care medicine (internal medicine) physician in 2024
1,431 Medicare Part D claims for 583 beneficiaries, against an average of 696 among the 2,873 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 103 claims were for opioids.
Most prescribed
- Atorvastatin Calcium100 claims
- Amlodipine Besylate56 claims
- Alprazolam51 claims
- Levothyroxine Sodium48 claims
- Lisinopril38 claims
- Hydrocodone-Acetaminophen37 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.
Bills Medicare through 2 group practices
- Mercy Clinic East CommunitiesWentzville, MO
- Mercy Hospitals East CommunitiesSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel A. Rey among 178 critical care medicine (internal medicine) physician records in Missouri
Daniel A. Rey, M.D. is one of 178 critical care medicine (internal medicine) physician records with a practice address in Missouri. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 37% of them.
- NPI issued2007 · 37% of these records are older, 53% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated1987 · median 2005 among the 144 with a school on file
- Record last updated2012 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Missouri
There are 178 critical care medicine (internal medicine) physician records in Missouri.
All 178 in Missouri → Every provider in Saint Louis → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Michael Cox, MDSaint Louis, MO 631411154334860
- Ronald Haake, D.O.St Louis, MO 631411386739548
- Muhammad Ali Javed, M.D. FCCPSaint Louis, MO 631411275741340
- Isabelle Kopec, M.D.St Louis, MO 631411427021211
- Adekunle Obisesan, MDSaint Louis, MO 631411164604138
- Ashok Palagiri, M.D.Saint Louis, MO 631411790899151
- Michael Plisco, MD, FCCPSaint Louis, MO 631411861432049
- Farid Sadaka, M.D.Saint Louis, MO 631411144337411
Common questions
What is Daniel A. Rey, M.D.'s NPI number?
Daniel A. Rey, M.D.'s National Provider Identifier (NPI) is 1336288356, issued on Feb 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Daniel A. Rey, M.D. located?
The NPPES record lists a practice address at 615 S New Ballas RD, Saint Louis, MO, 63141. Phone: (314) 251-4283. Providers update this record themselves, so call before visiting.
How can I verify Daniel A. Rey, M.D.'s license?
NPPES lists Missouri license number R9J16, 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 Daniel A. Rey, M.D. prescribe under Medicare Part D?
In 2024, Daniel A. Rey, M.D. had 1,431 Medicare Part D claims for 583 beneficiaries; the average among critical care medicine (internal medicine) physician prescribers was 696. 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.