Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Dr. Mark Drangsholt , DDS, MSD

Dentist • Seattle, WA

Active NPI 1033208384 Individual Practitioner Male Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

1959 Ne Pacific St, Hsb - B221
Seattle, WA 981850001

Call 2066852937 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1959 Ne Pacific St
Hsb - B221

Seattle, WA 981850001

Telephone 2066852937
Fax 2066168577
Organization at the Same NPPES Address or Phone
University Of Washington Facility NPI 1326002049

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Uw School Of Dentistry. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

1984

Medicare patients

48 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $3,948 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Paid by Medicare

About $3,092 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

30-day fills

159 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$2,232 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.

Industry payments (Open Payments)

Fewer than 11 payment records totaling $17.02 in 2025

Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.

These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.

General: payments not tied to research, such as meals, travel, consulting or speaking fees.

A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.

Source: CMS Open Payments, program year 2025.

Guide: How to read an Open Payments record

Years since graduation

42 years (graduated 1984)

CMS Doctors and Clinicians data list 1984 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2006

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Dr. Drangsholt has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Dr. Drangsholt as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Seattle and Washington

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Not enough clinicians listed under Dentist in Washington have Medicare Part B data for 2024 to make a comparison.

Medicare-allowed amount

Not enough clinicians listed under Dentist in Washington have Medicare Part B data for 2024 to make a comparison.

Paid by Medicare

Not enough clinicians listed under Dentist in Washington have Medicare Part B data for 2024 to make a comparison.

Medicare Part D prescriptions

More Part D prescriptions than 90% of clinicians listed under Dentist in Seattle, WA (2024, 97 clinicians with data). Median for this group: 25. Middle half: 15 to 49.

More Part D prescriptions than 90% of clinicians listed under Dentist in Washington (2024, 1,025 clinicians with data). Median for this group: 30. Middle half: 17 to 59.

Part D drug cost

A higher Part D drug cost than 95% of clinicians listed under Dentist in Seattle, WA (2024, 97 clinicians with data). Median for this group: $88. Middle half: $48 to $204.

A higher Part D drug cost than 95% of clinicians listed under Dentist in Washington (2024, 1,025 clinicians with data). Median for this group: $105. Middle half: $53 to $242.

426 active clinicians are listed under Dentist with a practice address in Seattle, WA (2,768 in Washington).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Seattle

0.9% of these 426 clinicians have the CMS telehealth indicator.

1.2% of these 426 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2025

Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $17.02.

Manufacturer Payment Nature Product Type Amount ($)
Solventum Corporation
Food and Beverage
Cash or cash equivalent
3M ESPE Filtek Supreme Ultra Universal Restorative General $17.02

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
25 16 $196.00 $100.16
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
23 18 $121.00 $62.79

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D · Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Tizanidine Hcl Tizanidine Hcl 62 1,715 $684.06 28
Cyclobenzaprine Hcl Cyclobenzaprine Hcl 22 615 $165.86 —
Clonazepam Clonazepam 19 619 $189.57 —
Pregabalin Pregabalin 19 886 $299.43 —
Clobetasol Propionate Clobetasol Propionate 11 308 $893.35 —

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2025-10-23
Dentist Primary Specialty

NUCC Taxonomy Code: 122300000X

License # reported to NPPES WA DE00005928

A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Washington State Department of Health Provider Lookup.
Look Up on State Board Site

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid ID
1000865 (WA)

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - ORAL SURGERY

Medicare Enrollment ID

I20050426000221

Enrollment State Jurisdiction

WA

PECOS Control ID

0244279719

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Not Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Uw School Of Dentistry

1959 Ne Pacific St, Seattle, WA 981956365

Phone: 2066166996

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

8 listed
Dr. Ssu-Kuang Chen , DDS

Dentist - Oral and Maxillofacial Radiology

NPI 1215026414

Doctor of Dental Surgery

NPI 1720493265

Doctor of Dental Medicine, Master of Public Health

NPI 1760024129

Doctor of Dental Surgery

Dr. David Dean , DDS

Dentist - General Practice

NPI 1790099091

Doctor of Dental Surgery

Doctor of Dental Medicine, MSD, Doctor of Philosophy (Ph.D.)

NPI 1245329416

Doctor of Dental Surgery, MSD

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

7 Historical Events
📍
Updated Business Mailing Address October 23, 2025

Registered at 1959 NE PACIFIC ST, BOX 357131, SEATTLE, WA 981850001 (Tel: 2066852937)

âś…
NPI Profile Active October 18, 2007

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) October 18, 2007

Registered at 1959 NE PACIFIC ST, HSB - B221, SEATTLE, WA 981850001 (Tel: 2066852937)

📍
Business Mailing Address (Initial Record) October 18, 2007

Registered at 1959 NE PACIFIC ST, PO BOX 357131, SEATTLE, WA 981850001 (Tel: 2066852937)

👤
Provider Name / Credentials (Initial Record) October 18, 2007

Recorded as MARK DRANGSHOLT, DDS, MSD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 18, 2007

Dentist (license number reported to NPPES: WA DE00005928)

🟢
Initial NPI Registration & Enumeration October 12, 2006

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1033208384
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 12, 2006
Last Update: October 23, 2025
Sole Proprietor: No

Other Dentists in Seattle

All Dentists in Seattle

More public profiles in Washington

Directory navigation, in NPI number order.

Mailing Address

1959 Ne Pacific St, Box 357131

Seattle, WA 981850001

Phone: 2066852937

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.