Mary Leigh Horn, NPC
- Medicare patients, 2024
- 104
- Part D claims, 2024
- 72
- Hospital affiliations
- 3
- Industry payments
- $24
- Medical groups
- 3
- Practice address
- 10996 4 Seasons Pl, Crown Point, IN 46307
- Practice phone
- Call (662) 456-4277
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mrh Medical Group, Horn Medical Clinic
Crown Point, Indiana
Find Mary Horn'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.
Mary Leigh Horn is a family nurse practitioner in Crown Point, Indiana
Mary Horn practices at Mrh Medical Group, Horn Medical Clinic in Crown Point, Indiana.
Mary Horn's NPI, 1093165805, was assigned on June 13, 2016. Mary Horn holds Mississippi license 901531.
- NPI
- 1093165805NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850684630
- NPI enumeration date
- June 13, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (662) 456-4277
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary Leigh Horn practices at Mrh Medical Group, Horn Medical Clinic in Crown Point, Indiana
Mary Horn's primary practice is Mrh Medical Group, Horn Medical Clinic, at 10996 4 Seasons Pl, Crown Point, IN 46307 in Lake County. The practice phone is (662) 456-4277.
- Mrh Medical Group, Horn Medical Clinic10996 4 Seasons Pl, Crown Point, IN 46307 · Lake CountyPhone(662) 456-4277
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mary Leigh Horn is affiliated with 4 sites of care and 3 medical groups
Mary Horn's primary practice is Mrh Medical Group, Horn Medical Clinic in Crown Point, Indiana. Mary Horn is also affiliated with North Mississippi Medical Center-Tupelo. The medical group on file is North Mississippi Medical Center. Dmand AI also links Mary Horn to 2 more hospitals and 2 medical groups, each 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 Mary Leigh Horn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary Horn practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mrh Medical Group, Horn Medical Clinic | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Mary Leigh Horn is one of 4,830 family nurse practitioners in Indiana
Family is Mary Horn's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Mary Horn is licensed in Mississippi.
Specialties and state licenses
- Family nurse practitioner, MississippiPrimary
Family nurse practitioners near Mary Horn
Counts of family 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
Mary Leigh Horn treated 104 Medicare patients in 2024, average age 64
CMS counts 104 Medicare patients who saw Mary Horn in 2024. The largest group is 65 to 74, with 45 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 39% are also on Medicaid. Their average risk score is 3.61, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Mary Horn's median patient age at 65, with 33% women.
Mary Horn's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Mary Horn's Medicare patients by sex, 2024
- Women2019%
- Men8481%
Chronic conditions among Mary Horn's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes63%
- Chronic kidney disease45%
- Ischemic heart disease43%
- Arthritis37%
- Mood disorders36%
- Anxiety34%
Share of Medicare patients with each condition. A patient can have several.
Mary Horn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women33%
- Men67%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mary Leigh Horn wrote 72 Medicare Part D claims in 2024
In 2024, Mary Horn wrote 72 Medicare Part D claims for 40 patients. 83% of them were for generic drugs.
Mary Horn's Part D claims by kind of drug, 2024
- Generic60 claims83%
- Brand-name12 claims17%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Mary Leigh Horn offers telehealth to Medicare patients
Mary Horn accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Mary Horn as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Mary Leigh Horn received $24 in industry payments in 2025
CMS Open Payments shows 1 general payment to Mary Horn from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. AtriCure, Inc. paid the most, $24.
Companies that paid Mary Horn 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 Mary Leigh Horn'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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 Mary Leigh Horn
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mary Leigh Horn's NPI number?
Mary Leigh Horn's NPI number is 1093165805. It was assigned on June 13, 2016, and it is active in the NPI Registry.
What does Mary Leigh Horn specialize in?
Mary Leigh Horn is a family nurse practitioner in Crown Point, Indiana. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Mary Leigh Horn practice?
Mary Horn practices at 10996 4 Seasons Pl, Crown Point, IN 46307. Mary Horn's primary practice is Mrh Medical Group, Horn Medical Clinic in Crown Point, Indiana. Dmand AI also links Mary Horn to 2 hospitals and 2 medical groups.
What is Mary Leigh Horn's office phone number?
The practice phone on file for Mary Horn is (662) 456-4277.
What is Mary Leigh Horn's medical license number?
Mary Horn holds Mississippi license 901531.
Which hospitals is Mary Leigh Horn affiliated with?
Mary Horn is affiliated with North Mississippi Medical Center-Tupelo. Dmand AI links Mary Horn to 2 more hospitals.
What medical group is Mary Leigh Horn part of?
Mary Horn is linked to North Mississippi Medical Center. Dmand AI links Mary Horn to 2 more medical groups.
Does Mary Leigh Horn accept Medicare?
Yes. CMS lists Mary Horn as accepting Medicare assignment.
Does Mary Leigh Horn offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Mary Horn as offering telehealth services.
How many Medicare patients does Mary Leigh Horn see?
CMS counts 104 Medicare patients who saw Mary Horn in 2024, with an average age of 64.
Has Mary Leigh Horn received payments from drug or device companies?
CMS Open Payments shows $24 in general payments to Mary Horn from 1 company from 2025 to 2025. The largest total came from AtriCure, Inc.
How long has Mary Leigh Horn been practicing?
Mary Horn graduated from medical school in 2016, 10 years ago.
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