Claudia Regina Villatoro Santos, MD
Endocrinology, Diabetes & Metabolism Physician · Saint Louis, MO
Claudia Regina Villatoro Santos, MD is an endocrinology, diabetes & metabolism physician with a practice address in Saint Louis, Missouri, and NPI 1053872945, issued on Mar 25, 2019. Check the license (Missouri 2023044181, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Claudia Regina Villatoro Santos
- Credential
- MD
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 2023044181 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
- Phone
- (314) 362-3500
- Enumerated
- Mar 25, 2019
- Record last updated
- Apr 17, 2025
- Fax
- (314) 230-1119
- Medicaid ID
- 200147493 MO
- Medicare enrollment
- Enrolled (PECOS I20241010001438); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 206 in Missouri → Look up another NPI →
Also registered at 1 Barnes Jewish Hospital Plz
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Claudia Regina Villatoro Santos 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 2023044181Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
169 Medicare Part D claims for 42 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 55% of claims.
Most prescribed
- Levothyroxine Sodium23 claims
- Jardiance11 claims
- Ozempic11 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 one group practice
- Washington UniversitySaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Claudia Regina Villatoro Santos among 206 endocrinology, diabetes & metabolism physician records in Missouri
Claudia Regina Villatoro Santos, MD is one of 206 endocrinology, diabetes & metabolism 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 2019, is newer than 91% of them.
- NPI issued2019 · 91% of these records are older, 6% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2014 · median 2003 among the 148 with a school on file
- Record last updated2025 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Missouri
There are 206 endocrinology, diabetes & metabolism physician records in Missouri.
All 206 in Missouri → Every provider in Saint Louis → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- James Avery, MDSaint Louis, MO 631101487671947
- Thomas Baranski, MDSaint Louis, MO 631101710903026
- Raymond Bourey, MDSaint Louis, MO 631101982607578
- Kim Carmichael, MDSaint Louis, MO 631101417907742
- Lewis Chase, MDSaint Louis, MO 631101134146640
- Anne Goldberg, MDSaint Louis, MO 631101093731317
- Sanjay Jain, M.D.Saint Louis, MO 631101033145974
- Janet McGill, MDSaint Louis, MO 631101811915325
Common questions
What is Claudia Regina Villatoro Santos, MD's NPI number?
Claudia Regina Villatoro Santos, MD's National Provider Identifier (NPI) is 1053872945, issued on Mar 25, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Claudia Regina Villatoro Santos, MD located?
The NPPES record lists a practice address at 1 Barnes Jewish Hospital Plz, Saint Louis, MO, 63110. Phone: (314) 362-3500. Providers update this record themselves, so call before visiting.
How can I verify Claudia Regina Villatoro Santos, MD's license?
NPPES lists Missouri license number 2023044181, 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 Claudia Regina Villatoro Santos, MD prescribe under Medicare Part D?
In 2024, Claudia Regina Villatoro Santos, MD had 169 Medicare Part D claims for 42 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.