William M. Callahan, DDS
- Affiliated sites
- 1
- Medical group
- 1
- State licenses
- 2
- Year NPI issued
- 2005
- Practice locations
- 2
- Practice address
- 104 W Oak Hwy, Westminster, SC 29693-2226
- Practice phone
- Call (864) 647-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
William M. Callahan
Dental practice · Westminster, South Carolina
Find William Callahan'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.
William M. Callahan is a general practice dentistry in Seneca, South Carolina
William Callahan practices at William M. Callahan in Westminster, South Carolina.
William Callahan's NPI, 1831192400, was assigned on May 27, 2005. William Callahan holds South Carolina license 4167.
- NPI
- 1831192400NPI Registry (opens in a new tab)
- NPI enumeration date
- May 27, 2005
- NPI status
- Active
- Practice phone
- (864) 647-9000
- 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)
William M. Callahan practices in Westminster and Seneca
William Callahan's primary practice is William M. Callahan, at 104 W Oak Hwy, Westminster, SC 29693-2226. The practice phone is (864) 647-9000. The NPI Registry lists William Callahan's practice address as 11012 N Radio Station Rd, Seneca, SC 29678.
- William M. CallahanPrimary104 W Oak Hwy, Westminster, SC 29693-2226Phone(864) 647-9000
- NPI Registry address11012 N Radio Station Rd, Seneca, SC 29678Phone(648) 820-8808
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
William M. Callahan is affiliated with 1 site of care and 1 medical group
William Callahan's primary practice is William M. Callahan in Westminster, South Carolina. Dmand AI also links William Callahan to 1 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 William M. Callahan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Callahan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| William M. Callahan | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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William M. Callahan is one of 990 general practice dentistrys in South Carolina
General practice is William Callahan's primary specialty in the NPI Registry, under taxonomy code 1223G0001X. Dmand AI has William Callahan's licenses on file in 2 states: South Carolina and Georgia.
Specialties and state licenses
- General practice dentistry, South CarolinaPrimary
- Georgia license
General practice dentistrys near William Callahan
Counts of general practice dentistrys 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
Sources for William M. Callahan'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) |
| 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 William M. Callahan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is William M. Callahan's NPI number?
William M. Callahan's NPI number is 1831192400. It was assigned on May 27, 2005, and it is active in the NPI Registry.
What does William M. Callahan specialize in?
William M. Callahan is a general practice dentistry in Seneca, South Carolina. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).
Where does William M. Callahan practice?
William Callahan practices at 104 W Oak Hwy, Westminster, SC 29693-2226. William Callahan also practices at 11012 N Radio Station Rd, Seneca, SC 29678. William Callahan's primary practice is William M. Callahan in Westminster, South Carolina. Dmand AI also links William Callahan to 1 medical group.
What is William M. Callahan's office phone number?
The practice phone on file for William Callahan is (864) 647-9000.
What is William M. Callahan's medical license number?
William Callahan holds South Carolina license 4167, one of the licenses on file in 2 states.
Which states has William M. Callahan been licensed in?
Dmand AI has state licenses on file for William Callahan in South Carolina and Georgia.
How long has William M. Callahan been practicing?
William Callahan's NPI was assigned in 2005.
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