NPPES file of Aug 9, 2026

Alyssa Marie McClellan, CRNA

Certified Registered Nurse Anesthetist · Saint Louis, MO

Alyssa Marie McClellan, CRNA is a certified registered nurse anesthetist with a practice address in Saint Louis, Missouri, and NPI 1164904553, issued on Aug 31, 2018. Check the license (Missouri 2019001963, as entered in NPPES) 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 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164904553
Name
Alyssa Marie McClellan
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
2019001963 MO
Self-reported in NPPES; status is on the state search
Practice location
1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
Phone
(800) 862-9980
Enumerated
Aug 31, 2018
Record last updated
Apr 17, 2025
Fax
(314) 362-1185
Medicaid ID
910069784 MO
Medicare enrollment
Enrolled (PECOS I20190201002229); 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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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.

  1. Fizza Abbas, MDInternal Medicine Physician1588079230
  2. Catey Abbott, DOInternal Medicine Physician1699355347
  3. Ramzi Abboud, MDMedical Oncology Physician1649684200
  4. Amy Abdalla, MDRadiation Oncology Physician1932959954
  5. Heba Abdelal, MDAnatomic Pathology & Clinical Pathology Physician1033633383
  6. Ali Abdelhay, MDHospitalist Physician1619540606

Verify Alyssa Marie McClellan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 2019001963
    Check 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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score71.5
  2. Costout of 100 · 30%59.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Washington UniversitySaint Louis, MO

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

Alyssa Marie McClellan among 2,069 certified registered nurse anesthetist records in Missouri

Alyssa Marie McClellan, CRNA is one of 2,069 certified registered nurse anesthetist records with a practice address in Missouri. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 72% of them.

  • NPI issued2018 · 72% of these records are older, 25% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2018 · median 2013 among the 1,508 with a school on file
  • Record last updated2025 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

623 certified registered nurse anesthetist records list a practice address in Saint Louis

They are 623 of the 27,605 NPPES records with a practice address in Saint Louis, and 2,069 certified registered nurse anesthetist records in Missouri.

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. William Adams, CRNASaint Louis, MO 631101891776860
  2. Anita Barni, CRNASt Louis, MO 631101912975301
  3. Michon Coats, CRNASaint Louis, MO 631101912966722
  4. Karen Frank, CRNASaint Louis, MO 631101679579239
  5. James Halliburton, CRNASaint Louis, MO 631101174502025
  6. Christina Hanselman, CRNASaint Louis, MO 631101245202613
  7. Janise Heck, CRNASaint Louis, MO 631101821077058
  8. Bernadette Henrichs, CRNASaint Louis, MO 631101386635662

Common questions

What is Alyssa Marie McClellan, CRNA's NPI number?

Alyssa Marie McClellan, CRNA's National Provider Identifier (NPI) is 1164904553, issued on Aug 31, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Alyssa Marie McClellan, CRNA located?

The NPPES record lists a practice address at 1 Barnes Jewish Hospital Plz, Saint Louis, MO, 63110. Phone: (800) 862-9980. Providers update this record themselves, so call before visiting.

How can I verify Alyssa Marie McClellan, CRNA's license?

NPPES lists Missouri license number 2019001963, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

What is Alyssa Marie McClellan, CRNA's MIPS final score?

The 2023 MIPS final score is 79.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.