William Siemiaszko, DDS
- Affiliated sites
- 3
- Medical groups
- 3
- State licenses
- 6
- Year NPI issued
- 2007
- Practice address
- 20 Commerce Way, Seekonk, MA 02771-5823
- Practice phone
- Call (508) 336-6700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Arul PC Of Fall River
Dental practice · Seekonk, Massachusetts
Find William Siemiaszko'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 Siemiaszko is a dentist in Seekonk, Massachusetts
William Siemiaszko practices at Arul PC Of Fall River in Seekonk, Massachusetts.
William Siemiaszko's NPI, 1720295009, was assigned on May 17, 2007. William Siemiaszko holds Massachusetts license 21050.
- NPI
- 1720295009NPI Registry (opens in a new tab)
- NPI enumeration date
- May 17, 2007
- NPI status
- Active
- Practice phone
- (508) 336-6700
- 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 Siemiaszko practices at Arul PC of Fall River in Seekonk, Massachusetts
William Siemiaszko's primary practice is Arul PC of Fall River, at 20 Commerce Way, Seekonk, MA 02771-5823. The practice phone is (508) 336-6700.
- Arul PC of Fall River20 Commerce Way, Seekonk, MA 02771-5823Phone(508) 336-6700
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
William Siemiaszko is affiliated with 3 sites of care and 3 medical groups
William Siemiaszko's primary practice is Arul PC Of Fall River in Seekonk, Massachusetts. Dmand AI also links William Siemiaszko to 3 medical groups and 2 group practices and clinics, each 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 Siemiaszko's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Siemiaszko practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Arul PC Of Fall River | Available with a free account |
| +2 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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William Siemiaszko is one of 1,210 dentists in Massachusetts
Dentist is William Siemiaszko's primary specialty in the NPI Registry, under taxonomy code 122300000X. Dmand AI has William Siemiaszko's licenses on file in 6 states: Massachusetts, Connecticut, New York, Ohio, Pennsylvania and Rhode Island.
Specialties and state licenses
- Dentist, MassachusettsPrimary
- Connecticut license
- New York license
- Ohio license
- Pennsylvania license
- Rhode Island license
Dentists near William Siemiaszko
Counts of dentists 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 Siemiaszko'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Siemiaszko
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 Siemiaszko's NPI number?
William Siemiaszko's NPI number is 1720295009. It was assigned on May 17, 2007, and it is active in the NPI Registry.
What does William Siemiaszko specialize in?
William Siemiaszko is a dentist in Seekonk, Massachusetts. The primary specialty in the NPI Registry is Dentist (taxonomy code 122300000X).
Where does William Siemiaszko practice?
William Siemiaszko practices at 20 Commerce Way, Seekonk, MA 02771-5823. William Siemiaszko's primary practice is Arul PC Of Fall River in Seekonk, Massachusetts. Dmand AI also links William Siemiaszko to 3 medical groups and 2 group practices and clinics.
What is William Siemiaszko's office phone number?
The practice phone on file for William Siemiaszko is (508) 336-6700.
What is William Siemiaszko's medical license number?
William Siemiaszko holds Massachusetts license 21050, one of the licenses on file in 6 states.
Which states has William Siemiaszko been licensed in?
Dmand AI has state licenses on file for William Siemiaszko in Massachusetts, Connecticut, New York, Ohio, Pennsylvania and Rhode Island.
How long has William Siemiaszko been practicing?
William Siemiaszko's NPI was assigned in 2007.
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