Michael Christopher Hassert, MSN, APN, AGNP-C
Adult Health Nurse Practitioner · Saint Louis, MO
Michael Christopher Hassert, MSN, APN, AGNP-C is an adult health nurse practitioner with a practice address in Saint Louis, Missouri, and NPI 1972119014, issued on Sep 22, 2020. Check the license (Missouri 2023007556, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael Christopher Hassert
- Credential
- MSN, APN, AGNP-C
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- 2023007556 MO
Self-reported in NPPES; status is on the state search - Practice location
- 6637 Berthold Ave, Saint Louis, MO 63139
- Phone
- (573) 247-9982
- Enumerated
- Sep 22, 2020
- Record last updated
- Mar 15, 2024
- Medicare enrollment
- Enrolled (PECOS I20230320000530); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 794 in Missouri → Look up another NPI →
Verify Michael Christopher Hassert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2023007556Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% more Medicare Part D claims than the average adult health nurse practitioner in 2024
1,289 Medicare Part D claims for 88 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Mirtazapine185 claims
- Lisinopril120 claims
- Gabapentin117 claims
- Furosemide74 claims
- Enalapril Maleate61 claims
- Amlodipine Besylate58 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
- Karefirst Missouri PCSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Christopher Hassert among 794 adult health nurse practitioner records in Missouri
Michael Christopher Hassert, MSN, APN, AGNP-C is one of 794 adult health nurse practitioner records with a practice address in Missouri. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 86% of them.
- NPI issued2020 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2017 · median 2013 among the 399 with a school on file
- Record last updated2024 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
332 adult health nurse practitioner records list a practice address in Saint Louis
They are 332 of the 27,605 NPPES records with a practice address in Saint Louis, and 794 adult health nurse practitioner records in Missouri.
All 794 in Missouri → Every provider in Saint Louis → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Kimberly Autry, AGNP-CSaint Louis, MO 631391265009369
- Diana Armstrong, APRN-BCSaint Louis, MO 631411295841484
- Darla Bryan, RN, CS, ANPSaint Louis, MO 631411083654073
- Susan Buettner-Miller, ANPSaint Louis, MO 631411669412359
- Marlene Guth, ANPSt Louis, MO 631411093849531
- Jane Hollman, ANPSaint Louis, MO 631411780725192
- Kathleen Lobello, ANPSaint Louis, MO 631411134147648
- Terri Morris, ANP-CSaint Louis, MO 631411205992278
Common questions
What is Michael Christopher Hassert, MSN, APN, AGNP-C's NPI number?
Michael Christopher Hassert, MSN, APN, AGNP-C's National Provider Identifier (NPI) is 1972119014, issued on Sep 22, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Michael Christopher Hassert, MSN, APN, AGNP-C located?
The NPPES record lists a practice address at 6637 Berthold Ave, Saint Louis, MO, 63139. Phone: (573) 247-9982. Providers update this record themselves, so call before visiting.
How can I verify Michael Christopher Hassert, MSN, APN, AGNP-C's license?
NPPES lists Missouri license number 2023007556, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Michael Christopher Hassert, MSN, APN, AGNP-C prescribe under Medicare Part D?
In 2024, Michael Christopher Hassert, MSN, APN, AGNP-C had 1,289 Medicare Part D claims for 88 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.