Mary K. O'Neill Johnson, ARNP
- Part D claims, 2024
- 102
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 556 Florida Central Pkwy, Longwood, FL 32750
- Practice phone
- Call (407) 865-5489
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
AdventHealth Home Infusion Central Florida
Longwood, Florida
Find Mary O'Neill Johnson'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 K. O'Neill Johnson is a nurse practitioner in Longwood, Florida
Mary O'Neill Johnson practices at AdventHealth Home Infusion Central Florida in Longwood, Florida.
Mary O'Neill Johnson's NPI, 1962410753, was assigned on August 4, 2006. Mary O'Neill Johnson holds Florida license ARNP1275592.
- NPI
- 1962410753NPI Registry (opens in a new tab)
- NPI enumeration date
- August 4, 2006
- NPI status
- Active
- Practice phone
- (407) 865-5489
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Mary K. O'Neill Johnson practices at AdventHealth Home Infusion Central Florida in Longwood, Florida
Mary O'Neill Johnson's primary practice is AdventHealth Home Infusion Central Florida, at 556 Florida Central Pkwy, Longwood, FL 32750 in Seminole County. The practice phone is (407) 865-5489.
- AdventHealth Home Infusion Central Florida556 Florida Central Pkwy, Longwood, FL 32750 · Seminole CountyPhone(407) 865-5489
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mary K. O'Neill Johnson is affiliated with 2 sites of care and 1 medical group
Mary O'Neill Johnson's primary practice is AdventHealth Home Infusion Central Florida in Longwood, Florida. The medical group on file is Central Florida Hospitalist Partners. Dmand AI also links Mary O'Neill Johnson to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mary K. O'Neill Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary O'Neill Johnson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| AdventHealth Home Infusion Central Florida | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Mary K. O'Neill Johnson is one of 5,914 nurse practitioners in Florida
Nurse practitioner is Mary O'Neill Johnson's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Mary O'Neill Johnson is licensed in Florida.
Specialties and state licenses
- Nurse practitioner, FloridaPrimary
Nurse practitioners near Mary O'Neill Johnson
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
Mary K. O'Neill Johnson's patients have a median age of 49
Across all payers, Dmand AI patient panel data puts Mary O'Neill Johnson's median patient age at 49, with 75% women.
Mary O'Neill Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women75%
- Men25%
Source: Dmand AI Patient Panel Data
Mary K. O'Neill Johnson wrote 102 Medicare Part D claims in 2024
In 2024, Mary O'Neill Johnson wrote 102 Medicare Part D claims for 78 patients. 95% of them were for generic drugs. CMS names the drug for 41 of them, across 3 drugs with 11 or more claims each, at $506 in total drug cost.
Mary O'Neill Johnson's Part D claims by kind of drug, 2024
- Generic97 claims95%
- Brand-name and other5 claims5%
Mary O'Neill Johnson's 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.
Drug classes CMS tracks in Mary O'Neill Johnson's Part D claims, 2024
- Antibiotics73%74 of 102 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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
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Sources for Mary K. O'Neill Johnson'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 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) |
| 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 K. O'Neill Johnson
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 K. O'Neill Johnson's NPI number?
Mary K. O'Neill Johnson's NPI number is 1962410753. It was assigned on August 4, 2006, and it is active in the NPI Registry.
What does Mary K. O'Neill Johnson specialize in?
Mary K. O'Neill Johnson is a nurse practitioner in Longwood, Florida. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Mary K. O'Neill Johnson practice?
Mary O'Neill Johnson practices at 556 Florida Central Pkwy, Longwood, FL 32750. Mary O'Neill Johnson's primary practice is AdventHealth Home Infusion Central Florida in Longwood, Florida. Dmand AI also links Mary O'Neill Johnson to 1 group practice or clinic.
What is Mary K. O'Neill Johnson's office phone number?
The practice phone on file for Mary O'Neill Johnson is (407) 865-5489.
What is Mary K. O'Neill Johnson's medical license number?
Mary O'Neill Johnson holds Florida license ARNP1275592.
What medical group is Mary K. O'Neill Johnson part of?
Mary O'Neill Johnson is linked to Central Florida Hospitalist Partners.
What drugs does Mary K. O'Neill Johnson prescribe most?
In 2024 Medicare Part D data, Mary O'Neill Johnson's most prescribed drugs by claims were Cefdinir, Ciprofloxacin HCl and Doxycycline Hyclate.
How long has Mary K. O'Neill Johnson been practicing?
Mary O'Neill Johnson's NPI was assigned in 2006.
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