Dr. Mallie Marie Dennis, MD
- Part D claims, 2024
- 400
- Hospital affiliations
- 1
- Industry payments
- $38
- Medical group
- 1
- State license
- 1
- Practice address
- 100 Hospital Street, Booneville, MS 38829
- Practice phone
- Call (662) 720-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Dennis' 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.
Dr. Mallie Marie Dennis is a psychiatrist in Booneville, Mississippi
Dr. Dennis practices at Baptist Memorial Hospital-Booneville in Booneville, Mississippi, part of Baptist Memorial Health Care.
Dr. Dennis' NPI, 1942880646, was assigned on April 8, 2021. Dr. Dennis graduated from University of Tennessee, Hsc, College of Medicine in 2021. Dr. Dennis holds Mississippi license 34904.
- NPI
- 1942880646NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224532353
- NPI enumeration date
- April 8, 2021
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (662) 720-5000
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mallie Marie Dennis practices at Baptist Memorial Hospital-Booneville in Booneville, Mississippi
Dr. Dennis' primary practice is Baptist Memorial Hospital-Booneville, at 100 Hospital Street, Booneville, MS 38829 in Prentiss County. The practice phone is (662) 720-5000.
- Baptist Memorial Hospital-Booneville100 Hospital Street, Booneville, MS 38829 · Prentiss CountyPhone(662) 720-5000
Source: Dmand AI Affiliation Data
Dr. Mallie Marie Dennis is affiliated with 2 sites of care and 1 medical group
Dr. Dennis' primary practice is Baptist Memorial Hospital-Booneville in Booneville, Mississippi, part of Baptist Memorial Health Care. The medical group on file is Baptist Medical Group. Dmand AI also links Dr. Dennis to 1 more hospital outpatient department, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mallie Marie Dennis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dennis practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Baptist Memorial Hospital-Booneville | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Baptist Memorial Health Care and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mallie Marie Dennis is one of 165 psychiatrists in Mississippi
Psychiatry is Dr. Dennis' primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Dennis is licensed in Mississippi.
Specialties and state licenses
- Psychiatry, MississippiPrimary
Psychiatrists near Dr. Dennis
Counts of psychiatrists 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
Dr. Mallie Marie Dennis' patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Dr. Dennis' median patient age at 73, with 50% women.
Dr. Dennis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Mallie Marie Dennis wrote 400 Medicare Part D claims in 2024
In 2024, Dr. Dennis wrote 400 Medicare Part D claims for 50 patients. 93% of them were for generic drugs. CMS names the drug for 285 of them, across 16 drugs with 11 or more claims each, at $19,574 in total drug cost.
Dr. Dennis' Part D claims by kind of drug, 2024
- Generic372 claims93%
- Brand-name28 claims7%
Dr. Dennis' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Mallie Marie Dennis takes part in Medicare
Dr. Dennis 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)
For MedTech and pharma teams
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Dr. Mallie Marie Dennis received $38 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. Dennis from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Alpha Cognition USA, Inc. paid the most, $38.
Companies that paid Dr. Dennis the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mallie Marie Dennis graduated from University of Tennessee, Hsc, College of Medicine
Dr. Dennis graduated from University of Tennessee, Hsc, College of Medicine in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mallie Marie Dennis'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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 and Drug (CMS) (opens in a new tab)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) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Dr. Mallie Marie Dennis
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mallie Marie Dennis' NPI number?
Dr. Mallie Marie Dennis' NPI number is 1942880646. It was assigned on April 8, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Mallie Marie Dennis?
Dr. Mallie Marie Dennis is a psychiatrist in Booneville, Mississippi. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Mallie Marie Dennis practice?
Dr. Dennis practices at 100 Hospital Street, Booneville, MS 38829. Dr. Dennis' primary practice is Baptist Memorial Hospital-Booneville in Booneville, Mississippi, part of Baptist Memorial Health Care. Dmand AI also links Dr. Dennis to 1 hospital outpatient department.
What is Dr. Mallie Marie Dennis' office phone number?
The practice phone on file for Dr. Dennis is (662) 720-5000.
What is Dr. Mallie Marie Dennis' medical license number?
Dr. Dennis holds Mississippi license 34904.
Which hospitals is Dr. Mallie Marie Dennis affiliated with?
Dr. Dennis practices at Baptist Memorial Hospital-Booneville in Booneville, Mississippi.
What medical group is Dr. Mallie Marie Dennis part of?
Dr. Dennis is linked to Baptist Medical Group.
Does Dr. Mallie Marie Dennis accept Medicare?
Yes. CMS lists Dr. Dennis as accepting Medicare assignment.
Where did Dr. Mallie Marie Dennis go to medical school?
Dr. Dennis graduated from University of Tennessee, Hsc, College of Medicine in 2021.
What drugs does Dr. Mallie Marie Dennis prescribe most?
In 2024 Medicare Part D data, Dr. Dennis' most prescribed drugs by claims were Trazodone HCl, Sertraline HCl and Fluoxetine HCl.
Has Dr. Mallie Marie Dennis received payments from drug or device companies?
CMS Open Payments shows $38 in general payments to Dr. Dennis from 1 company from 2025 to 2025. The largest total came from Alpha Cognition USA, Inc.
How long has Dr. Mallie Marie Dennis been practicing?
Dr. Dennis graduated from medical school in 2021, 5 years ago.
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