Steffen Niels Lassen, DDS

  • Eugene, OR
  • General practice dentistry
NPI1750811485
Part D claims, 2024
55
Affiliated sites
1
Medical group
1
State licenses
2
Year NPI issued
2017
Practice address
4120 Quest Dr, Eugene, OR 97402-8768
Practice phone
Call (541) 688-7278
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Lassen Dental

Dental practice · Eugene, Oregon

See all 2 affiliations

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Steffen Niels Lassen is a general practice dentistry in Eugene, Oregon

Steffen Lassen practices at Lassen Dental in Eugene, Oregon.

Steffen Lassen's NPI, 1750811485, was assigned on June 15, 2017. Steffen Lassen holds Oregon license D10980.

NPI and contact details
NPI enumeration date
June 15, 2017
NPI status
Active
Practice phone
(541) 688-7278
Professional email
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Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Steffen Niels Lassen practices at Lassen Dental in Eugene, Oregon

Steffen Lassen's primary practice is Lassen Dental, at 4120 Quest Dr, Eugene, OR 97402-8768. The practice phone is (541) 688-7278.

  • Lassen Dental
    4120 Quest Dr, Eugene, OR 97402-8768Phone(541) 688-7278

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Steffen Niels Lassen is affiliated with 1 site of care and 1 medical group

Steffen Lassen's primary practice is Lassen Dental in Eugene, Oregon. Dmand AI also links Steffen Lassen to 1 medical group, named with a free account.

Lassen DentalDental practice · Eugene, OregonPrimary
1 medical groupName with a free account
See all 2 affiliations for Steffen Lassen

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dmand AI tracks the EHR system at Steffen Niels Lassen's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Steffen Lassen practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Lassen DentalAvailable with a free account
+1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Steffen Niels Lassen is one of 849 general practice dentistrys in Oregon

General practice is Steffen Lassen's primary specialty in the NPI Registry, under taxonomy code 1223G0001X. Dmand AI has Steffen Lassen's licenses on file in 2 states: Oregon and California.

Specialties and state licenses

  • General practice dentistry, OregonPrimaryLicense D10980 · taxonomy 1223G0001X
  • Dentist, CaliforniaLicense 101423 · taxonomy 122300000X

General practice dentistrys near Steffen Lassen

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

Steffen Niels Lassen's patients have a median age of 13

Across all payers, Dmand AI patient panel data puts Steffen Lassen's median patient age at 13, with 100% women.

Steffen Lassen's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 13

Patient panel by sex, all payers

  • Women100%
  • Men0%

Source: Dmand AI Patient Panel Data

Steffen Niels Lassen wrote 55 Medicare Part D claims in 2024

In 2024, Steffen Lassen wrote 55 Medicare Part D claims for 32 patients. 98% of them were for generic drugs.

Part D claims, 202455
Part D patients32

Steffen Lassen's Part D claims by kind of drug, 2024

  • Generic54 claims98%
  • Brand-name and other1 claims2%

Drug classes CMS tracks in Steffen Lassen's Part D claims, 2024

  • Opioids22%12 of 55 claims
  • Antibiotics62%34 of 55 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data

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Sources for Steffen Niels Lassen's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Steffen Niels Lassen

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Steffen Niels Lassen's NPI number?

Steffen Niels Lassen's NPI number is 1750811485. It was assigned on June 15, 2017, and it is active in the NPI Registry.

What does Steffen Niels Lassen specialize in?

Steffen Niels Lassen is a general practice dentistry in Eugene, Oregon. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).

Where does Steffen Niels Lassen practice?

Steffen Lassen practices at 4120 Quest Dr, Eugene, OR 97402-8768. Steffen Lassen's primary practice is Lassen Dental in Eugene, Oregon. Dmand AI also links Steffen Lassen to 1 medical group.

What is Steffen Niels Lassen's office phone number?

The practice phone on file for Steffen Lassen is (541) 688-7278.

What is Steffen Niels Lassen's medical license number?

Steffen Lassen holds Oregon license D10980, one of the licenses on file in 2 states.

Which states has Steffen Niels Lassen been licensed in?

Dmand AI has state licenses on file for Steffen Lassen in Oregon and California.

How long has Steffen Niels Lassen been practicing?

Steffen Lassen's NPI was assigned in 2017.

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