Maria R. Williamson, AAC
- Medicare patients, 2024
- 25
- Hospital affiliations
- 2
- Industry payments
- $28
- Medical groups
- 5
- State license
- 1
- Practice address
- 6535 Nemours Pkwy, Orlando, FL 32827
- Practice phone
- Call (407) 567-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Maria Williamson's professional email, personal email and mobile number
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Maria R. Williamson is an anesthesiologist assistant in Orlando, Florida
Maria Williamson practices at Nemours Children's Hospital, Florida in Orlando, Florida, part of The Nemours Foundation.
Maria Williamson's NPI, 1902206584, was assigned on September 2, 2014. Maria Williamson holds Florida license AA220.
- NPI
- 1902206584NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436379609
- NPI enumeration date
- September 2, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (407) 567-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Maria R. Williamson practices at Nemours Children's Hospital, Florida in Orlando, Florida
Maria Williamson's primary practice is Nemours Children's Hospital, Florida, at 6535 Nemours Pkwy, Orlando, FL 32827 in Orange County. The practice phone is (407) 567-4000.
- Nemours Children's Hospital, Florida6535 Nemours Pkwy, Orlando, FL 32827 · Orange CountyPhone(407) 567-4000
Source: Dmand AI Affiliation Data
Maria R. Williamson is affiliated with 5 sites of care and 5 medical groups
Maria Williamson's primary practice is Nemours Children's Hospital, Florida in Orlando, Florida, part of The Nemours Foundation. Maria Williamson is also affiliated with HCA Florida Trinity Hospital. The medical group on file is Nemours Children's Health. Dmand AI also links Maria Williamson to 4 more medical groups and 3 group practices and clinics, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Maria R. Williamson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Maria Williamson practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Nemours Children's Hospital, Florida | Available with a free account |
| +4 more sites and 4 medical groups | 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 The Nemours Foundation and 6.2K+ hospitals, with verified contacts in the same login.
Maria R. Williamson is one of 851 anesthesiologist assistants in Florida
Anesthesiologist assistant is Maria Williamson's primary specialty in the NPI Registry, under taxonomy code 367H00000X. Maria Williamson is licensed in Florida.
Specialties and state licenses
- Anesthesiologist assistant, FloridaPrimary
Anesthesiologist assistants near Maria Williamson
Counts of anesthesiologist assistants 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
Maria R. Williamson treated 25 Medicare patients in 2024, average age 78
CMS counts 25 Medicare patients who saw Maria Williamson in 2024. The largest group is 75 to 84, with 13 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 1.98, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Maria Williamson's median patient age at 9, with 40% women.
Maria Williamson's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Chronic conditions among Maria Williamson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis72%
- Mood disorders52%
- Atrial fibrillation48%
- Depression48%
- Ischemic heart disease48%
- Diabetes44%
Share of Medicare patients with each condition. A patient can have several.
Maria Williamson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 9
Patient panel by sex, all payers
- Women40%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Maria R. Williamson takes part in Medicare
Maria Williamson 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)
Maria R. Williamson received $28 in industry payments in 2025
CMS Open Payments shows 1 general payment to Maria Williamson from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. B. Braun Interventional Systems Inc. paid the most, $28.
Companies that paid Maria Williamson 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 Maria R. Williamson'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 DataMedicare Physician & Other Practitioners - 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 Maria R. Williamson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Maria R. Williamson's NPI number?
Maria R. Williamson's NPI number is 1902206584. It was assigned on September 2, 2014, and it is active in the NPI Registry.
What does Maria R. Williamson specialize in?
Maria R. Williamson is an anesthesiologist assistant in Orlando, Florida. The primary specialty in the NPI Registry is Anesthesiologist Assistant (taxonomy code 367H00000X).
Where does Maria R. Williamson practice?
Maria Williamson practices at 6535 Nemours Pkwy, Orlando, FL 32827. Maria Williamson's primary practice is Nemours Children's Hospital, Florida in Orlando, Florida, part of The Nemours Foundation. Dmand AI also links Maria Williamson to 4 medical groups and 3 group practices and clinics.
What is Maria R. Williamson's office phone number?
The practice phone on file for Maria Williamson is (407) 567-4000.
What is Maria R. Williamson's medical license number?
Maria Williamson holds Florida license AA220.
Which hospitals is Maria R. Williamson affiliated with?
Maria Williamson practices at Nemours Children's Hospital, Florida in Orlando, Florida. Maria Williamson is also affiliated with HCA Florida Trinity Hospital.
What medical group is Maria R. Williamson part of?
Maria Williamson is linked to Nemours Children's Health. Dmand AI links Maria Williamson to 4 more medical groups.
Does Maria R. Williamson accept Medicare?
Yes. CMS lists Maria Williamson as accepting Medicare assignment.
How many Medicare patients does Maria R. Williamson see?
CMS counts 25 Medicare patients who saw Maria Williamson in 2024, with an average age of 78.
Has Maria R. Williamson received payments from drug or device companies?
CMS Open Payments shows $28 in general payments to Maria Williamson from 1 company from 2025 to 2025. The largest total came from B. Braun Interventional Systems Inc.
How long has Maria R. Williamson been practicing?
Maria Williamson graduated from medical school in 2014, 12 years ago.
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