NPPES file of Aug 9, 2026

Alyssa Rivera, CAA

Anesthesiologist Assistant · Saint Louis, MO

Alyssa Rivera, CAA is an anesthesiologist assistant with a practice address in Saint Louis, Missouri, and NPI 1972291805, issued on Apr 27, 2023. Check the license with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1972291805
Name
Alyssa Rivera
Credential
CAA
Primary taxonomy
Anesthesiologist Assistant 367H00000X
Practice location
1465 S Grand Blvd, Saint Louis, MO 63104
Phone
(314) 577-5600
Enumerated
Apr 27, 2023
Record last updated
Apr 28, 2023
Medicare enrollment
Enrolled (PECOS I20230810001840); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest anesthesiologist assistant records → All 311 in Missouri → Look up another NPI →

Also registered at 1465 S Grand Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Nabil Abboud, MDAnesthesiology Physician1386660504
  2. Elaf AbdelmagidPediatrics Physician1831077627
  3. Michel Adonis, M.D.Pediatrics Physician1497190854
  4. Attila Ahmad, MDPediatric Cardiology Physician1245842699
  5. Emily Ahmad, CPNP-PCPediatric Nurse Practitioner1871875104
  6. Muteen Ahmed, M.B.B.S.Student in an Organized Health Care Education/Training Program1437950466

Verify Alyssa Rivera in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Missouri license search

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Industry payments in 2024: $18.22

1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 1,380 providers of this specialty with any payment received $114.24 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alyssa Rivera$18.22
  2. Specialty average$114.24

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Ssm Health Care GroupSaint Louis, MO
  2. Ssm Health Slu Hospital Anesthesia Physician Billing LLCSaint Louis, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Alyssa Rivera among 311 anesthesiologist assistant records in Missouri

Alyssa Rivera, CAA is one of 311 anesthesiologist assistant 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 2023, is newer than 65% of them.

  • NPI issued2023 · 65% of these records are older, 26% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 88% of these records are
  • Graduated2023 · median 2020 among the 273 with a school on file
  • Record last updated2023 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367H00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiologist Assistant providers in Missouri

There are 311 anesthesiologist assistant records in Missouri.

All 311 in Missouri → Every provider in Saint Louis → Anesthesiologist Assistant nationwide →

The 8 anesthesiologist assistant records with the nearest ZIP codes

  1. Kaitlyn Bell, CAASaint Louis, MO 631041447143912
  2. Hannah Bottin, CAASaint Louis, MO 631041568156479
  3. Justin Ellingworth, CAASaint Louis, MO 631041780243451
  4. Kendra FullmerSaint Louis, MO 631041891201539
  5. Rylee JarmanSaint Louis, MO 631041275422164
  6. Sara Leitner, AASaint Louis, MO 631041174956163
  7. Blendi MullalliSaint Louis, MO 631041841959293
  8. Abby NietersSaint Louis, MO 631041447944871

Common questions

What is Alyssa Rivera, CAA's NPI number?

Alyssa Rivera, CAA's National Provider Identifier (NPI) is 1972291805, issued on Apr 27, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Alyssa Rivera, CAA located?

The NPPES record lists a practice address at 1465 S Grand Blvd, Saint Louis, MO, 63104. Phone: (314) 577-5600. Providers update this record themselves, so call before visiting.

How can I verify Alyssa Rivera, CAA's license?

Search the Missouri board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.