Dr. William Carson Felkel II, MD
- Part D claims, 2021
- 12
- Industry payments
- $6,371
- Affiliated sites
- 1
- Medical groups
- 2
- State licenses
- 2
- Practice address
- 104 Innovation Dr Ste 2000 Suite 2000, Greenville, SC 29607
- Practice phone
- Call (864) 603-6300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St Francis Physician Services - Behavioral & Mental Health - Greenville (Innovation Dr)
Multi-specialty group site · Greenville, South Carolina
Find Dr. Felkel'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. William Carson Felkel II is a psychiatrist in Simpsonville, South Carolina
Dr. Felkel practices at St Francis Physician Services - Behavioral & Mental Health - Greenville (Innovation Dr) in Greenville, South Carolina.
Dr. Felkel's NPI, 1821309998, was assigned on June 23, 2010. Dr. Felkel holds South Carolina license 51582.
- NPI
- 1821309998NPI Registry (opens in a new tab)
- NPI enumeration date
- June 23, 2010
- NPI status
- Active
- Practice phone
- (864) 603-6300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William Carson Felkel II practices in Greenville and Simpsonville
Dr. Felkel's primary practice is St Francis Physician Services - Behavioral & Mental Health - Greenville (Innovation Dr), at 104 Innovation Dr Ste 2000 Suite 2000, Greenville, SC 29607. The practice phone is (864) 603-6300. The NPI Registry lists Dr. Felkel's practice address as 404 SE Main St, Simpsonville, SC 29681.
- St Francis Physician Services - Behavioral & Mental Health - Greenville (Innovation Dr)Primary104 Innovation Dr Ste 2000 Suite 2000, Greenville, SC 29607Phone(864) 603-6300
- NPI Registry address404 SE Main St, Simpsonville, SC 29681 · Greenville CountyPhone(864) 603-6300
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. William Carson Felkel II is affiliated with 1 site of care and 2 medical groups
Dr. Felkel's primary practice is St Francis Physician Services - Behavioral & Mental Health - Greenville (Innovation Dr) in Greenville, South Carolina. The medical group on file is Bon Secours Medical Group Greenville Specialty Care. Dmand AI also links Dr. Felkel to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. William Carson Felkel II's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Felkel practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St Francis Physician Services - Behavioral & Mental Health - Greenville (Innovation Dr) | Available with a free account |
| +1 medical group | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William Carson Felkel II is one of 630 psychiatrists in South Carolina
Psychiatry is Dr. Felkel's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dmand AI has Dr. Felkel's licenses on file in 2 states: South Carolina and North Carolina.
Specialties and state licenses
- Psychiatry, South CarolinaPrimary
- North Carolina license
Psychiatrists near Dr. Felkel
Counts of psychiatrists 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. William Carson Felkel II wrote 12 Medicare Part D claims in 2021
In 2021, Dr. Felkel wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $135 in total drug cost. In 2020, CMS named 26 claims across 2 drugs.
Dr. Felkel's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 262021: 1254%
Drugs named by CMS: 1 in 2021, 2 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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.
Dr. William Carson Felkel II received $6,371 in industry payments from 2016 to 2023
CMS Open Payments shows 36 general payments to Dr. Felkel from 9 drug and device companies from 2016 to 2023. Consulting fees make up the largest share, 82% of the total. Sunovion Pharmaceuticals Inc. paid the most, $5,358.
General payments to Dr. Felkel by program year, 2016 to 2023
General payments to Dr. Felkel by kind, 2016 to 2023
- Consulting fees$5,25082%
- Food and beverage$1,12118%
Companies that paid Dr. Felkel the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. William Carson Felkel II'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 Dr. William Carson Felkel II
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. William Carson Felkel II's NPI number?
Dr. William Carson Felkel II's NPI number is 1821309998. It was assigned on June 23, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. William Carson Felkel II?
Dr. William Carson Felkel II is a psychiatrist in Simpsonville, South Carolina. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. William Carson Felkel II practice?
Dr. Felkel practices at 104 Innovation Dr Ste 2000 Suite 2000, Greenville, SC 29607. Dr. Felkel also practices at 404 SE Main St, Simpsonville, SC 29681. Dr. Felkel's primary practice is St Francis Physician Services - Behavioral & Mental Health - Greenville (Innovation Dr) in Greenville, South Carolina. Dmand AI also links Dr. Felkel to 1 medical group.
What is Dr. William Carson Felkel II's office phone number?
The practice phone on file for Dr. Felkel is (864) 603-6300.
What is Dr. William Carson Felkel II's medical license number?
Dr. Felkel holds South Carolina license 51582, one of the licenses on file in 2 states.
Which states has Dr. William Carson Felkel II been licensed in?
Dmand AI has state licenses on file for Dr. Felkel in South Carolina and North Carolina.
What medical group is Dr. William Carson Felkel II part of?
Dr. Felkel is linked to Bon Secours Medical Group Greenville Specialty Care. Dmand AI links Dr. Felkel to 1 more medical group.
What drugs does Dr. William Carson Felkel II prescribe most?
In 2021 Medicare Part D data, Dr. Felkel's most prescribed drugs by claims were Quetiapine Fumarate.
Has Dr. William Carson Felkel II received payments from drug or device companies?
CMS Open Payments shows $6,371 in general payments to Dr. Felkel from 9 companies from 2016 to 2023. The largest total came from Sunovion Pharmaceuticals Inc.
How long has Dr. William Carson Felkel II been practicing?
Dr. Felkel's NPI was assigned in 2010.
Selling to psychiatry practices?
See psychiatrists in South Carolina by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card