Dr. Maria Dillon, MD
- Medicare services, 2021
- 422
- Medicare patients, 2024
- 12
- Part D claims, 2024
- 6,668
- Industry payments
- $41
- Affiliated sites
- 2
- Practice address
- 461 W Oak St Ste A Suite A, Kissimmee, FL 34741
- Practice phone
- Call (407) 846-8600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Optum
Primary care practice · Kissimmee, Florida
Find Dr. Dillon'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.
Dr. Maria Dillon is an internist in Kissimmee, Florida
Dr. Dillon practices at Optum in Kissimmee, Florida.
Dr. Dillon's NPI, 1780044453, was assigned on February 24, 2016. Dr. Dillon graduated from Universidad Catolica de Santiago de Guayaquil in 2013. Dr. Dillon holds Florida license ME152483.
- NPI
- 1780044453NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3173816709
- NPI enumeration date
- February 24, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (407) 846-8600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Maria Dillon practices at Optum in Kissimmee, Florida
Dr. Dillon's primary practice is Optum, at 461 W Oak St Ste A Suite A, Kissimmee, FL 34741. The practice phone is (407) 846-8600.
- Optum461 W Oak St Ste A Suite A, Kissimmee, FL 34741Phone(407) 846-8600
Source: Dmand AI Affiliation Data
Dr. Maria Dillon is affiliated with 2 sites of care and 2 medical groups
Dr. Dillon's primary practice is Optum in Kissimmee, Florida. The medical group on file is Optumcare - Florida, LLC. Dmand AI also links Dr. Dillon to 1 more group practice or clinic and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Maria Dillon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Dillon practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Optum | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Maria Dillon is one of 9,009 internists in Florida
Internal medicine is Dr. Dillon's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Dillon is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Dillon's licenses on file in 2 states: Florida and Pennsylvania.
Specialties and state licenses
- Internal medicine, FloridaPrimary
- Pennsylvania license
Clinical focus
Dmand AI lists UTI among the conditions Dr. Dillon treats.
Internists near Dr. Dillon
Counts of internists 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. Maria Dillon billed Medicare for 422 services in 2021
CMS data shows 422 Medicare services from Dr. Dillon across 12 procedure codes in 2021, for 12 Medicare patients. Medicare paid $35,305 for them. Every service was in an office.
Dr. Dillon's Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 2462021: 2502%
- Other services
- 2020: 942021: 11421%
- Tests and treatments
- 2020: 192021: 47147%
- Lab and pathology
- 2020: 142021: 1121%
Dr. Dillon compared with the Florida median for internists, 2021
- Dr. Dillon
- Florida median
- Medicare services
- 422vs 55524% below
- Medicare patients
- 12vs 21594% below
- Part D claims
- 6,067vs 46613.0 times
Medians across 8,488 internists in Florida with Dmand AI profiles that report each measure.
Dr. Dillon's most billed Medicare procedure codes, 2021
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Dillon?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Dillon and other internists in Florida.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Maria Dillon treated 12 Medicare patients in 2024, average age 76
CMS counts 12 Medicare patients who saw Dr. Dillon in 2024. Their average risk score is 2.72, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Dillon's median patient age at 76, with 66% women.
Dr. Dillon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women66%
- Men34%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Maria Dillon wrote 6,668 Medicare Part D claims in 2024
In 2024, Dr. Dillon wrote 6,668 Medicare Part D claims for 528 patients. 88% of them were for generic drugs. CMS names the drug for 6,067 of them, across 127 drugs with 11 or more claims each, at $402,195 in total drug cost. In 2023, CMS named 4,756 claims across 107 drugs.
Dr. Dillon's Part D claims by kind of drug, 2024
- Generic5,897 claims88%
- Brand-name717 claims11%
- Other54 claims1%
Dr. Dillon'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 Dr. Dillon's Part D claims, 2024
- Opioids4%280 of 6,668 claims
- Antibiotics4%276 of 6,668 claims
- Antipsychotics, patients 65 and over0%31 of 6,668 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,7562024: 6,06728%
Drugs named by CMS: 127 in 2024, 107 in 2023.
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. Maria Dillon takes part in Medicare
Dr. Dillon 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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Dr. Maria Dillon received $41 in industry payments from 2016 to 2017
CMS Open Payments shows 2 general payments to Dr. Dillon from 2 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Bristol-Myers Squibb Company paid the most, $27.
General payments to Dr. Dillon by program year, 2016 to 2017
Companies that paid Dr. Dillon the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Maria Dillon graduated from Universidad Catolica de Santiago de Guayaquil
Dr. Dillon graduated from Universidad Catolica de Santiago de Guayaquil in 2013.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Maria Dillon accepts plans from 15 insurance carriers
Dr. Dillon is in network with 15 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Elevance. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Elevance
- Highmark
- Humana
- Aetna
- HCSC
- Alliant Health Plans
- +7 more carriersWith a free account
Plan types Dr. Dillon accepts, by number of carriers
- HMO9
- PPO9
- EPO4
- Medicare4
- POS2
Source: Dmand AI Insurance Network Data
Sources for Dr. Maria Dillon'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 Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Maria Dillon
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. Maria Dillon's NPI number?
Dr. Maria Dillon's NPI number is 1780044453. It was assigned on February 24, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Maria Dillon?
Dr. Maria Dillon is an internist in Kissimmee, Florida. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Maria Dillon practice?
Dr. Dillon practices at 461 W Oak St Ste A Suite A, Kissimmee, FL 34741. Dr. Dillon's primary practice is Optum in Kissimmee, Florida. Dmand AI also links Dr. Dillon to 1 group practice or clinic and 1 medical group.
What is Dr. Maria Dillon's office phone number?
The practice phone on file for Dr. Dillon is (407) 846-8600.
What is Dr. Maria Dillon's medical license number?
Dr. Dillon holds Florida license ME152483, one of the licenses on file in 2 states.
Which states has Dr. Maria Dillon been licensed in?
Dmand AI has state licenses on file for Dr. Dillon in Florida (2021 to 2026) and Pennsylvania (2016 to 2022).
What medical group is Dr. Maria Dillon part of?
Dr. Dillon is linked to Optumcare - Florida, LLC. Dmand AI links Dr. Dillon to 1 more medical group.
Does Dr. Maria Dillon accept Medicare?
Yes. CMS data shows Dr. Dillon billed Medicare for 422 services in 2021, and Dr. Dillon accepts Medicare assignment.
How many Medicare patients does Dr. Maria Dillon see?
CMS counts 12 Medicare patients who saw Dr. Dillon in 2024, with an average age of 76.
Is Dr. Maria Dillon board certified?
Yes. Dr. Dillon is board certified in internal medicine by the American Board of Internal Medicine.
Show 6 more questionsShow fewer questions
What services does Dr. Maria Dillon bill to Medicare?
In 2021, Dr. Dillon's most billed Medicare services were office visit, established patient (99214), medicare service (G0439) and medicare service (G0009).
Where did Dr. Maria Dillon go to medical school?
Dr. Dillon graduated from Universidad Catolica de Santiago de Guayaquil in 2013.
What drugs does Dr. Maria Dillon prescribe most?
In 2024 Medicare Part D data, Dr. Dillon's most prescribed drugs by claims were Lisinopril, Atorvastatin Calcium and Amlodipine Besylate.
Has Dr. Maria Dillon received payments from drug or device companies?
CMS Open Payments shows $41 in general payments to Dr. Dillon from 2 companies from 2016 to 2017. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. Maria Dillon been practicing?
Dr. Dillon graduated from medical school in 2013, 13 years ago.
What insurance does Dr. Maria Dillon accept?
Dr. Dillon is in network with 15 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Elevance. HMO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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