Stephanie D. Nellesen, FNP
- Part D claims, 2024
- 613
- Industry payments
- $87
- Affiliated sites
- 4
- Medical groups
- 3
- State license
- 1
- Practice address
- 12639 Old Tesson Road, Suite 130, Saint Louis, MO 63128
- Practice phone
- Call (314) 748-4225
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Old Tesson Surgery Center
Surgery Center - Medicare-Certified · Saint Louis, Missouri
Find Stephanie Nellesen'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.
Stephanie D. Nellesen is a family nurse practitioner in Saint Louis, Missouri
Stephanie Nellesen practices at Old Tesson Surgery Center in Saint Louis, Missouri.
Stephanie Nellesen's NPI, 1003362021, was assigned on August 30, 2016. Stephanie Nellesen holds Missouri license 2016022548.
- NPI
- 1003362021NPI Registry (opens in a new tab)
- NPI enumeration date
- August 30, 2016
- NPI status
- Active
- Practice phone
- (314) 748-4225
- 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; and Dmand AI Affiliation Data
Stephanie D. Nellesen practices at Old Tesson Surgery Center in Saint Louis, Missouri
Stephanie Nellesen's primary practice is Old Tesson Surgery Center, at 12639 Old Tesson Road, Suite 130, Saint Louis, MO 63128. The practice phone is (314) 748-4225.
- Old Tesson Surgery Center12639 Old Tesson Road, Suite 130, Saint Louis, MO 63128Phone(314) 748-4225
Source: Dmand AI Affiliation Data
Stephanie D. Nellesen is affiliated with 4 sites of care and 3 medical groups
Stephanie Nellesen's primary practice is Old Tesson Surgery Center in Saint Louis, Missouri. The medical group on file is Mercy Clinic East Communities. Dmand AI also links Stephanie Nellesen to 3 more group practices and clinics and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Stephanie D. Nellesen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Stephanie Nellesen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Old Tesson Surgery Center | 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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Stephanie D. Nellesen is one of 3,989 family nurse practitioners in Missouri
Family is Stephanie Nellesen's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Stephanie Nellesen is licensed in Missouri.
Specialties and state licenses
- Family nurse practitioner, MissouriPrimary
Family nurse practitioners near Stephanie Nellesen
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
Stephanie D. Nellesen's patients have a median age of 72
Across all payers, Dmand AI patient panel data puts Stephanie Nellesen's median patient age at 72, with 63% women.
Stephanie Nellesen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women63%
- Men38%
Source: Dmand AI Patient Panel Data
Stephanie D. Nellesen wrote 613 Medicare Part D claims in 2024
In 2024, Stephanie Nellesen wrote 613 Medicare Part D claims for 275 patients. 73% of them were for generic drugs.
Stephanie Nellesen's Part D claims by kind of drug, 2024
- Generic446 claims73%
- Brand-name and other167 claims27%
Drug classes CMS tracks in Stephanie Nellesen's Part D claims, 2024
- Antibiotics5%31 of 613 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Stephanie D. Nellesen received $87 in industry payments in 2025
CMS Open Payments shows 1 general payment to Stephanie Nellesen from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $87.
Companies that paid Stephanie Nellesen 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 Stephanie D. Nellesen'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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 Stephanie D. Nellesen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Stephanie D. Nellesen's NPI number?
Stephanie D. Nellesen's NPI number is 1003362021. It was assigned on August 30, 2016, and it is active in the NPI Registry.
What does Stephanie D. Nellesen specialize in?
Stephanie D. Nellesen is a family nurse practitioner in Saint Louis, Missouri. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Stephanie D. Nellesen practice?
Stephanie Nellesen practices at 12639 Old Tesson Road, Suite 130, Saint Louis, MO 63128. Stephanie Nellesen's primary practice is Old Tesson Surgery Center in Saint Louis, Missouri. Dmand AI also links Stephanie Nellesen to 3 group practices and clinics and 2 medical groups.
What is Stephanie D. Nellesen's office phone number?
The practice phone on file for Stephanie Nellesen is (314) 748-4225.
What is Stephanie D. Nellesen's medical license number?
Stephanie Nellesen holds Missouri license 2016022548.
What medical group is Stephanie D. Nellesen part of?
Stephanie Nellesen is linked to Mercy Clinic East Communities. Dmand AI links Stephanie Nellesen to 2 more medical groups.
Has Stephanie D. Nellesen received payments from drug or device companies?
CMS Open Payments shows $87 in general payments to Stephanie Nellesen from 1 company from 2025 to 2025. The largest total came from Boston Scientific Corporation.
How long has Stephanie D. Nellesen been practicing?
Stephanie Nellesen graduated from medical school in 2016, 10 years ago.
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