Helen Seda Thomasian
- Part D claims, 2024
- 12
- Industry payments
- $148
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 237 Kentlands Blvd, Gaithersburg, MD 20878-5446
- Practice phone
- Call (301) 987-5200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Smiles By Roxana
Dental practice · Gaithersburg, Maryland
Find Helen Thomasian'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.
Helen Seda Thomasian is a dentist in Gaithersburg, Maryland
Helen Thomasian practices at Smiles By Roxana in Gaithersburg, Maryland.
Helen Thomasian's NPI, 1063635290, was assigned on April 10, 2007. Helen Thomasian holds Maryland license 12074.
- NPI
- 1063635290NPI Registry (opens in a new tab)
- NPI enumeration date
- April 10, 2007
- NPI status
- Active
- Practice phone
- (301) 987-5200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Helen Seda Thomasian practices at Smiles By Roxana in Gaithersburg, Maryland
Helen Thomasian's primary practice is Smiles By Roxana, at 237 Kentlands Blvd, Gaithersburg, MD 20878-5446. The practice phone is (301) 987-5200.
- Smiles By Roxana237 Kentlands Blvd, Gaithersburg, MD 20878-5446Phone(301) 987-5200
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Helen Seda Thomasian is affiliated with 1 site of care and 1 medical group
Helen Thomasian's primary practice is Smiles By Roxana in Gaithersburg, Maryland. Dmand AI also links Helen Thomasian 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 Helen Seda Thomasian's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Helen Thomasian practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Smiles By Roxana | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Helen Seda Thomasian is one of 755 dentists in Maryland
Dentist is Helen Thomasian's primary specialty in the NPI Registry, under taxonomy code 122300000X. Helen Thomasian is licensed in Maryland.
Specialties and state licenses
- Dentist, MarylandPrimary
Dentists near Helen Thomasian
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
Helen Seda Thomasian's patients have a median age of 60
Across all payers, Dmand AI patient panel data puts Helen Thomasian's median patient age at 60, with 100% women.
Helen Thomasian's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Helen Seda Thomasian wrote 12 Medicare Part D claims in 2024
In 2024, Helen Thomasian wrote 12 Medicare Part D claims.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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.
Helen Seda Thomasian received $148 in industry payments in 2025
CMS Open Payments shows 1 general payment to Helen Thomasian from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Align Technology, Inc. paid the most, $148.
Companies that paid Helen Thomasian 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 Helen Seda Thomasian'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) |
| 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 Helen Seda Thomasian
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Helen Seda Thomasian's NPI number?
Helen Seda Thomasian's NPI number is 1063635290. It was assigned on April 10, 2007, and it is active in the NPI Registry.
What does Helen Seda Thomasian specialize in?
Helen Seda Thomasian is a dentist in Gaithersburg, Maryland. The primary specialty in the NPI Registry is Dentist (taxonomy code 122300000X).
Where does Helen Seda Thomasian practice?
Helen Thomasian practices at 237 Kentlands Blvd, Gaithersburg, MD 20878-5446. Helen Thomasian's primary practice is Smiles By Roxana in Gaithersburg, Maryland. Dmand AI also links Helen Thomasian to 1 medical group.
What is Helen Seda Thomasian's office phone number?
The practice phone on file for Helen Thomasian is (301) 987-5200.
What is Helen Seda Thomasian's medical license number?
Helen Thomasian holds Maryland license 12074.
Has Helen Seda Thomasian received payments from drug or device companies?
CMS Open Payments shows $148 in general payments to Helen Thomasian from 1 company from 2025 to 2025. The largest total came from Align Technology, Inc.
How long has Helen Seda Thomasian been practicing?
Helen Thomasian's NPI was assigned in 2007.
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