Hannah Marie Willis, PA
Physician Assistant · Saint Louis, MO
Hannah Marie Willis, PA is a physician assistant with a practice address in Saint Louis, Missouri, and NPI 1962961375, issued on Mar 15, 2019. Check the license (Missouri 2019003096, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Hannah Marie Willis
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 2019003096 MO
Self-reported in NPPES; status is on the state search - Practice location
- 4901 Forest Park Ave, Saint Louis, MO 63108
- Phone
- (314) 747-5361
- Enumerated
- Mar 15, 2019
- Record last updated
- Jul 16, 2025
- Fax
- (314) 747-5357
- Medicare enrollment
- Enrolled (PECOS I20190425001724); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 1,790 in Missouri → Look up another NPI →
Also registered at 4901 Forest Park Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ashley Altman, FNPNurse Practitioner1457882417
- Kelly Amerson, WHNPWomen's Health Nurse Practitioner1205993169
- Milan Anadkat, MDDermatology Physician1639267149
Verify Hannah Marie Willis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2019003096Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average physician assistant in 2024
1,800 Medicare Part D claims for 469 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate70 claims
- Prednisone68 claims
- Pantoprazole Sodium61 claims
- Losartan Potassium50 claims
- Tizanidine Hcl50 claims
- Amoxicillin-Clavulanate Potass48 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).
Hannah Marie Willis among 1,790 physician assistant records in Missouri
Hannah Marie Willis, PA is one of 1,790 physician assistant records with a practice address in Missouri. 81% 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 50% of them.
- NPI issued2019 · 50% of these records are older, 43% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2018 · median 2019 among the 1,250 with a school on file
- Record last updated2025 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
498 physician assistant records list a practice address in Saint Louis
They are 498 of the 27,605 NPPES records with a practice address in Saint Louis, and 1,790 physician assistant records in Missouri.
All 1,790 in Missouri → Every provider in Saint Louis → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Chelsey Garrison, PASaint Louis, MO 631081104212117
- Madeline Hughes, PASaint Louis, MO 631081992385710
- Kayla Jarrett, PASaint Louis, MO 631081114763158
- Shelby Martin, PASaint Louis, MO 631081467183772
- Joseph Soetaert, PASaint Louis, MO 631081538485842
- Gillian Traino, PA-CSaint Louis, MO 631081134896558
- Carmen Wilson, PASaint Louis, MO 631081780715896
- Nicole Biddinger, PA-CSaint Louis, MO 631071154972958
Common questions
What is Hannah Marie Willis, PA's NPI number?
Hannah Marie Willis, PA's National Provider Identifier (NPI) is 1962961375, issued on Mar 15, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Hannah Marie Willis, PA located?
The NPPES record lists a practice address at 4901 Forest Park Ave, Saint Louis, MO, 63108. Phone: (314) 747-5361. Providers update this record themselves, so call before visiting.
How can I verify Hannah Marie Willis, PA's license?
NPPES lists Missouri license number 2019003096, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Hannah Marie Willis, PA prescribe under Medicare Part D?
In 2024, Hannah Marie Willis, PA had 1,800 Medicare Part D claims for 469 beneficiaries; the average among physician assistant prescribers was 830. 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.