Stacey Ann Williamson, PA-C
- Medicare patients, 2024
- 172
- Part D claims, 2024
- 1,829
- Hospital affiliations
- 2
- Industry payments
- $186
- Medical group
- 1
- Practice address
- 3015 N Ballas Rd, Saint Louis, MO 63131
- Practice phone
- Call (314) 996-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Stacey Williamson'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.
Stacey Ann Williamson is a physician assistant in Saint Louis, Missouri
Stacey Williamson practices at Missouri Baptist Medical Center in Saint Louis, Missouri, part of BJC Health.
Stacey Williamson's NPI, 1457667891, was assigned on August 24, 2010. Stacey Williamson holds Oregon license PA178932.
- NPI
- 1457667891NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5698960763
- NPI enumeration date
- August 24, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (314) 996-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Stacey Ann Williamson practices at Missouri Baptist Medical Center in Saint Louis, Missouri
Stacey Williamson's primary practice is Missouri Baptist Medical Center, at 3015 N Ballas Rd, Saint Louis, MO 63131 in St. Louis County. The practice phone is (314) 996-5000.
- Missouri Baptist Medical Center3015 N Ballas Rd, Saint Louis, MO 63131 · St. Louis CountyPhone(314) 996-5000
Source: Dmand AI Affiliation Data
Stacey Ann Williamson is affiliated with 2 sites of care and 1 medical group
Stacey Williamson's primary practice is Missouri Baptist Medical Center in Saint Louis, Missouri, part of BJC Health. The medical group on file is BJC Medical Group. Dmand AI also links Stacey Williamson to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Stacey Ann Williamson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Stacey Williamson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Missouri Baptist Medical Center | 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 BJC Health and 6.2K+ hospitals, with verified contacts in the same login.
Stacey Ann Williamson is one of 1,484 physician assistants in Missouri
Physician assistant is Stacey Williamson's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Dmand AI has Stacey Williamson's licenses on file in 3 states: Oregon, Illinois and Missouri.
Specialties and state licenses
- Physician assistant, OregonPrimary
- Illinois license
- Missouri license
Physician assistants near Stacey Williamson
Counts of physician 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
Stacey Ann Williamson treated 172 Medicare patients in 2024, average age 70
CMS counts 172 Medicare patients who saw Stacey Williamson in 2024. The largest group is 65 to 74, with 73 patients. 75% of them have diabetes, and 75% have high blood pressure. 26% are also on Medicaid. Their average risk score is 2.28, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Stacey Williamson's median patient age at 68, with 57% women.
Stacey Williamson's Medicare patients by age, 2024
Stacey Williamson's Medicare patients by sex, 2024
- Women9857%
- Men7443%
Chronic conditions among Stacey Williamson's Medicare patients, 2024
- Diabetes75%
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Chronic kidney disease51%
- Ischemic heart disease39%
- Heart failure32%
- Mood disorders31%
Share of Medicare patients with each condition. A patient can have several.
Stacey 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 68
Patient panel by sex, all payers
- Women57%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Stacey Ann Williamson wrote 1,829 Medicare Part D claims in 2024
In 2024, Stacey Williamson wrote 1,829 Medicare Part D claims for 428 patients. 29% of them were for generic drugs.
Stacey Williamson's Part D claims by kind of drug, 2024
- Generic529 claims29%
- Brand-name1,080 claims59%
- Other220 claims12%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Stacey Ann Williamson takes part in Medicare
Stacey 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)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Stacey Ann Williamson received $186 in industry payments in 2025
CMS Open Payments shows 11 general payments to Stacey Williamson from 11 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Medtronic, Inc. paid the most, $21.
Companies that paid Stacey 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 Stacey Ann 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) |
| 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 Stacey Ann 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 Stacey Ann Williamson's NPI number?
Stacey Ann Williamson's NPI number is 1457667891. It was assigned on August 24, 2010, and it is active in the NPI Registry.
What does Stacey Ann Williamson specialize in?
Stacey Ann Williamson is a physician assistant in Saint Louis, Missouri. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Stacey Ann Williamson practice?
Stacey Williamson practices at 3015 N Ballas Rd, Saint Louis, MO 63131. Stacey Williamson's primary practice is Missouri Baptist Medical Center in Saint Louis, Missouri, part of BJC Health. Dmand AI also links Stacey Williamson to 1 hospital.
What is Stacey Ann Williamson's office phone number?
The practice phone on file for Stacey Williamson is (314) 996-5000.
What is Stacey Ann Williamson's medical license number?
Stacey Williamson holds Oregon license PA178932, one of the licenses on file in 3 states.
Which states has Stacey Ann Williamson been licensed in?
Dmand AI has state licenses on file for Stacey Williamson in Oregon, Illinois and Missouri.
Which hospitals is Stacey Ann Williamson affiliated with?
Stacey Williamson practices at Missouri Baptist Medical Center in Saint Louis, Missouri. Dmand AI links Stacey Williamson to 1 more hospital.
What medical group is Stacey Ann Williamson part of?
Stacey Williamson is linked to BJC Medical Group.
Does Stacey Ann Williamson accept Medicare?
Yes. CMS lists Stacey Williamson as accepting Medicare assignment.
How many Medicare patients does Stacey Ann Williamson see?
CMS counts 172 Medicare patients who saw Stacey Williamson in 2024, with an average age of 70.
Has Stacey Ann Williamson received payments from drug or device companies?
CMS Open Payments shows $186 in general payments to Stacey Williamson from 11 companies from 2025 to 2025. The largest total came from Medtronic, Inc.
How long has Stacey Ann Williamson been practicing?
Stacey Williamson graduated from medical school in 2010, 16 years ago.
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