John Tsaknis, DDS
- Industry payments
- $298
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 1221 Massachusetts Ave Nw Ste 4 Suite 4, Washington, DC 20005-5302
- Practice phone
- Call (202) 628-7979
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
City Dental Dc Mass
Dental practice · Washington, District of Columbia
Find John Tsaknis' 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.
John Tsaknis is a general practice dentistry in Washington, District of Columbia
John Tsaknis practices at City Dental Dc Mass in Washington, District of Columbia.
John Tsaknis' NPI, 1568514206, was assigned on January 16, 2007. John Tsaknis holds District of Columbia license DENT1000347.
- NPI
- 1568514206NPI Registry (opens in a new tab)
- NPI enumeration date
- January 16, 2007
- NPI status
- Active
- Practice phone
- (202) 628-7979
- 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)
John Tsaknis practices at 2 locations in Washington, District of Columbia
John Tsaknis' primary practice is City Dental Dc Mass, at 1221 Massachusetts Ave Nw Ste 4 Suite 4, Washington, DC 20005-5302. The practice phone is (202) 628-7979. The NPI Registry lists John Tsaknis' practice address as 1225 4th NE St, Washington, DC 20002.
- City Dental Dc MassPrimary1221 Massachusetts Ave Nw Ste 4 Suite 4, Washington, DC 20005-5302Phone(202) 628-7979
- NPI Registry address1225 4th NE St, Washington, DC 20002 · District Of Columbia County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
John Tsaknis is affiliated with 1 site of care and 1 medical group
John Tsaknis' primary practice is City Dental Dc Mass in Washington, District of Columbia. Dmand AI also links John Tsaknis 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 John Tsaknis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Tsaknis practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| City Dental Dc Mass | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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John Tsaknis is one of 148 general practice dentistrys in District of Columbia
General practice is John Tsaknis' primary specialty in the NPI Registry, under taxonomy code 1223G0001X. John Tsaknis is licensed in District of Columbia.
Specialties and state licenses
- General practice dentistry, District of ColumbiaPrimary
General practice dentistrys near John Tsaknis
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
John Tsaknis' patients have a median age of 42
Across all payers, Dmand AI patient panel data puts John Tsaknis' median patient age at 42, with 20% women.
John Tsaknis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women20%
- Men80%
Source: Dmand AI Patient Panel Data
John Tsaknis received $298 in industry payments in 2025
CMS Open Payments shows 3 general payments to John Tsaknis from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Align Technology, Inc. paid the most, $178.
Companies that paid John Tsaknis 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 John Tsaknis'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) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 John Tsaknis
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John Tsaknis' NPI number?
John Tsaknis' NPI number is 1568514206. It was assigned on January 16, 2007, and it is active in the NPI Registry.
What does John Tsaknis specialize in?
John Tsaknis is a general practice dentistry in Washington, District of Columbia. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).
Where does John Tsaknis practice?
John Tsaknis practices at 1221 Massachusetts Ave Nw Ste 4 Suite 4, Washington, DC 20005-5302. John Tsaknis also practices at 1225 4th NE St, Washington, DC 20002. John Tsaknis' primary practice is City Dental Dc Mass in Washington, District of Columbia. Dmand AI also links John Tsaknis to 1 medical group.
What is John Tsaknis' office phone number?
The practice phone on file for John Tsaknis is (202) 628-7979.
What is John Tsaknis' medical license number?
John Tsaknis holds District of Columbia license DENT1000347.
Has John Tsaknis received payments from drug or device companies?
CMS Open Payments shows $298 in general payments to John Tsaknis from 2 companies from 2025 to 2025. The largest total came from Align Technology, Inc.
How long has John Tsaknis been practicing?
John Tsaknis' NPI was assigned in 2007.
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