Matthew D. Sullivan, ND, MSA
Naturopath · Seattle, WA
Matthew D. Sullivan, ND, MSA is a naturopath with a practice address in Seattle, Washington, and NPI 1902228422, issued on Jan 17, 2014. Check the license (Washington NT 60416781, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Matthew D. Sullivan
- Credential
- ND, MSA
- Primary taxonomy
- Naturopath 175F00000X
- License number
- NT 60416781 WA
Self-reported in NPPES; status is on the state search - Practice location
- 3804 NE 94TH St, Seattle, WA 98115
- Phone
- (206) 569-8637
- Enumerated
- Jan 17, 2014
- Record last updated
- Jan 17, 2014 (not updated in 12 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest naturopath records → All 1,532 in Washington → Look up another NPI →
Verify Matthew D. Sullivan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license NT 60416781Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average naturopath in 2024
38 Medicare Part D claims, against an average of 109 among the 1,866 providers of this specialty who prescribed in Part D.
Most prescribed
- Progesterone12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Matthew D. Sullivan among 1,532 naturopath records in Washington
Matthew D. Sullivan, ND, MSA is one of 1,532 naturopath records with a practice address in Washington. 35% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 55% of them.
- NPI issued2014 · 55% of these records are older, 41% newer
- In a Medicare fileYes · 35% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2014 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 175F00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
526 naturopath records list a practice address in Seattle
They are 526 of the 41,956 NPPES records with a practice address in Seattle, and 1,532 naturopath records in Washington.
All 1,532 in Washington → Every provider in Seattle → Naturopath nationwide →
The 8 naturopath records with the nearest ZIP codes
- May Eng, N.D.Seattle, WA 981151639232135
- Molly Gray, NDSeattle, WA 981151639256027
- Amy Hobson, N.D.Seattle, WA 981151982709887
- Sheila Kingsbury, N.D.Seattle, WA 981151538217799
- Christopher Kozura, N.D., L.M.P.Seattle, WA 981151841332061
- Douglas Lewis, N.D.Seattle, WA 981151972696243
- Francine Loeb, MDSeattle, WA 981151093827966
- Bobbi Lutack, NDSeattle, WA 981151881741288
Common questions
What is Matthew D. Sullivan, ND, MSA's NPI number?
Matthew D. Sullivan, ND, MSA's National Provider Identifier (NPI) is 1902228422, issued on Jan 17, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Matthew D. Sullivan, ND, MSA located?
The NPPES record lists a practice address at 3804 NE 94TH St, Seattle, WA, 98115. Phone: (206) 569-8637. Providers update this record themselves, so call before visiting.
How can I verify Matthew D. Sullivan, ND, MSA's license?
NPPES lists Washington license number NT 60416781, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Matthew D. Sullivan, ND, MSA prescribe under Medicare Part D?
In 2024, Matthew D. Sullivan, ND, MSA had 38 Medicare Part D claims; the average among naturopath prescribers was 109. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.