Michelle A. Hassard, APRN, FNP
- Part D claims, 2024
- 1,817
- Industry payments
- $142
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 670 Mason Ridge Center Dr, Saint Louis, MO 63141
- Practice phone
- Call (573) 468-4186
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Sullivan Medical Office
Saint Louis, Missouri
Find Michelle Hassard's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Michelle A. Hassard is a nurse practitioner in Saint Louis, Missouri
Michelle Hassard practices at Sullivan Medical Office in Saint Louis, Missouri.
Michelle Hassard's NPI, 1558023903, was assigned on October 12, 2021. Michelle Hassard holds Missouri license 2021017741.
- NPI
- 1558023903NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618365347
- NPI enumeration date
- October 12, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (573) 468-4186
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Michelle A. Hassard practices at Sullivan Medical Office in Saint Louis, Missouri
Michelle Hassard's primary practice is Sullivan Medical Office, at 670 Mason Ridge Center Dr, Saint Louis, MO 63141 in Saint Louis County. The practice phone is (573) 468-4186.
- Sullivan Medical Office670 Mason Ridge Center Dr, Saint Louis, MO 63141 · Saint Louis CountyPhone(573) 468-4186
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Michelle A. Hassard is affiliated with 2 sites of care and 1 medical group
Michelle Hassard's primary practice is Sullivan Medical Office in Saint Louis, Missouri. The medical group on file is Missouri Baptist Sullivan Hospital. Dmand AI also links Michelle Hassard to 1 more rural health clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Michelle A. Hassard's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Michelle Hassard practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sullivan Medical Office | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Michelle A. Hassard is one of 1,347 nurse practitioners in Missouri
Nurse practitioner is Michelle Hassard's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Michelle Hassard is licensed in Missouri.
Specialties and state licenses
- Nurse practitioner, MissouriPrimary
Nurse practitioners near Michelle Hassard
Counts of nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Michelle A. Hassard's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Michelle Hassard's median patient age at 66, with 59% women.
Michelle Hassard's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women59%
- Men41%
Source: Dmand AI Patient Panel Data
Michelle A. Hassard wrote 1,817 Medicare Part D claims in 2024
In 2024, Michelle Hassard wrote 1,817 Medicare Part D claims for 355 patients. 89% of them were for generic drugs.
Michelle Hassard's Part D claims by kind of drug, 2024
- Generic1,611 claims89%
- Brand-name and other206 claims11%
Drug classes CMS tracks in Michelle Hassard's Part D claims, 2024
- Antibiotics8%149 of 1,817 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Michelle A. Hassard takes part in Medicare
Michelle Hassard accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Michelle A. Hassard received $142 in industry payments in 2025
CMS Open Payments shows 9 general payments to Michelle Hassard from 8 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Eli Lilly and Company paid the most, $34.
Companies that paid Michelle Hassard the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Michelle A. Hassard's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Michelle A. Hassard
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What is Michelle A. Hassard's NPI number?
Michelle A. Hassard's NPI number is 1558023903. It was assigned on October 12, 2021, and it is active in the NPI Registry.
What does Michelle A. Hassard specialize in?
Michelle A. Hassard is a nurse practitioner in Saint Louis, Missouri. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Michelle A. Hassard practice?
Michelle Hassard practices at 670 Mason Ridge Center Dr, Saint Louis, MO 63141. Michelle Hassard's primary practice is Sullivan Medical Office in Saint Louis, Missouri. Dmand AI also links Michelle Hassard to 1 rural health clinic.
What is Michelle A. Hassard's office phone number?
The practice phone on file for Michelle Hassard is (573) 468-4186.
What is Michelle A. Hassard's medical license number?
Michelle Hassard holds Missouri license 2021017741.
What medical group is Michelle A. Hassard part of?
Michelle Hassard is linked to Missouri Baptist Sullivan Hospital.
Does Michelle A. Hassard accept Medicare?
Yes. CMS lists Michelle Hassard as accepting Medicare assignment.
Has Michelle A. Hassard received payments from drug or device companies?
CMS Open Payments shows $142 in general payments to Michelle Hassard from 8 companies from 2025 to 2025. The largest total came from Eli Lilly and Company.
How long has Michelle A. Hassard been practicing?
Michelle Hassard graduated from medical school in 2021, 5 years ago.
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