Miriam Isabelle Ruiz, M.D.
Surgery Physician · Saint Louis, MO
Miriam Isabelle Ruiz, M.D. is a surgery physician with a practice address in Saint Louis, Missouri, and NPI 1770933996, issued on Jun 18, 2016. Check the license (Missouri 2016023726, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Miriam Isabelle Ruiz
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 2016023726 MO
Self-reported in NPPES; status is on the state search - Practice location
- 3635 Vista Ave, Saint Louis, MO 63110
- Phone
- (314) 577-8000
- Enumerated
- Jun 18, 2016
- Record last updated
- Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210916001206); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 714 in Missouri → Look up another NPI →
Also registered at 3635 Vista Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ahmed Abdelbaki, M.D.Vascular & Interventional Radiology Physician1396152005
- Julie Adams, D.O.Student in an Organized Health Care Education/Training Program1720280639
- Michelle Adorjan, ACNPAcute Care Nurse Practitioner1982729950
- Lisa Alderson, M.D.Specialist1538102561
- Georgios Alexopoulos, MDNeurological Surgery Physician1417309097
- Kathleen Andersen, KATHLEEN KNEBELSBERGAnesthesiologist Assistant1306097464
Verify Miriam Isabelle Ruiz 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 2016023726Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average surgery physician in 2024
56 Medicare Part D claims for 25 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.
Most prescribed
- Hydrocortisone11 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: $153.45
1 payment: food and beverage; the largest payer was Endomagnetics Ltd. The 17,103 providers of this specialty with any payment received $3,513.80 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
- Southern California Permanente Medical GroupBaldwin Park, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Miriam Isabelle Ruiz among 714 surgery physician records in Missouri
Miriam Isabelle Ruiz, M.D. is one of 714 surgery physician records with a practice address in Missouri. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 68% of them.
- NPI issued2016 · 68% of these records are older, 30% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2016 · median 2006 among the 410 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Missouri
There are 714 surgery physician records in Missouri.
All 714 in Missouri → Every provider in Saint Louis → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- L Brunt, MDSaint Louis, MO 631101992723621
- Bradley Freeman, MDSaint Louis, MO 631101255359980
- William Hawkins, MDSaint Louis, MO 631101538187257
- Eddy Hsueh, MDSaint Louis, MO 631101003910225
- David Jaques, MDSaint Louis, MO 631101093706541
- John Kirby, MDSaint Louis, MO 631101902829823
- Mary Klingensmith, MDSaint Louis, MO 631101184640492
- Benjamin Kozower, MDSaint Louis, MO 631101548283450
Common questions
What is Miriam Isabelle Ruiz, M.D.'s NPI number?
Miriam Isabelle Ruiz, M.D.'s National Provider Identifier (NPI) is 1770933996, issued on Jun 18, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Miriam Isabelle Ruiz, M.D. located?
The NPPES record lists a practice address at 3635 Vista Ave, Saint Louis, MO, 63110. Phone: (314) 577-8000. Providers update this record themselves, so call before visiting.
How can I verify Miriam Isabelle Ruiz, M.D.'s license?
NPPES lists Missouri license number 2016023726, 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 Miriam Isabelle Ruiz, M.D. prescribe under Medicare Part D?
In 2024, Miriam Isabelle Ruiz, M.D. had 56 Medicare Part D claims for 25 beneficiaries; the average among surgery physician prescribers was 147. 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.