Theodore Mark Hennessey, DDS
General Practice Dentistry · Federal Way, WA
Theodore Mark Hennessey, DDS is a general practice dentistry with a practice address in Federal Way, Washington, and NPI 1558432666, issued on Nov 11, 2006. Check the license (Washington DE00010589, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Theodore Mark Hennessey
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- DE00010589 WA
Self-reported in NPPES; status is on the state search - Practice location
- 181 S 333RD St, Federal Way, WA 98003
- Phone
- (253) 661-6381
- Enumerated
- Nov 11, 2006
- Record last updated
- Jun 21, 2012 (not updated in 14 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 3,196 in Washington → Look up another NPI →
Also registered at 181 S 333RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Nathan, MDDiagnostic Radiology Physician1083606511
Verify Theodore Mark Hennessey in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license DE00010589Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average general practice dentistry in 2024
48 Medicare Part D claims for 29 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Doxycycline Hyclate11 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.
Theodore Mark Hennessey among 3,196 general practice dentistry records in Washington
Theodore Mark Hennessey, DDS is one of 3,196 general practice dentistry records with a practice address in Washington. 57% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 59% newer
- In a Medicare fileYes · 57% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2012 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
79 general practice dentistry records list a practice address in Federal Way
They are 79 of the 2,770 NPPES records with a practice address in Federal Way, and 3,196 general practice dentistry records in Washington.
All 3,196 in Washington → Every provider in Federal Way → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Barbara Billings, DDSFederal Way, WA 980031720179286
- Annabelle ChoiFederal Way, WA 980031861485567
- Thomas Jacka, D.D.S.Federal Way, WA 980031114990462
- Bret Jacobson, DDSFederal Way, WA 980031790893956
- Richard Koch, DDSFederal Way, WA 980031861475329
- Kwan Lee, DDSFederal Way, WA 980031568496131
- Josephine Lee, DDSFederal Way, WA 980031508979980
- Hyun Park, D.D.S.Federal Way, WA 980031689682189
Common questions
What is Theodore Mark Hennessey, DDS's NPI number?
Theodore Mark Hennessey, DDS's National Provider Identifier (NPI) is 1558432666, issued on Nov 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Theodore Mark Hennessey, DDS located?
The NPPES record lists a practice address at 181 S 333RD St, Federal Way, WA, 98003. Phone: (253) 661-6381. Providers update this record themselves, so call before visiting.
How can I verify Theodore Mark Hennessey, DDS's license?
NPPES lists Washington license number DE00010589, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Theodore Mark Hennessey, DDS prescribe under Medicare Part D?
In 2024, Theodore Mark Hennessey, DDS had 48 Medicare Part D claims for 29 beneficiaries; the average among general practice dentistry prescribers was 83. 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.