Denis A. Harlock, MD
Family Medicine Physician · Sedro Woolley, WA
Denis A. Harlock, MD is a family medicine physician with a practice address in Sedro Woolley, Washington, and NPI 1164532941, issued on Aug 30, 2006. Check the license (Washington MD00041814, as entered in NPPES) on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Denis A. Harlock
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD00041814 WA
Self-reported in NPPES; status is on the state search - Practice location
- 830 Ball St, Sedro Woolley, WA 98284
- Phone
- (360) 855-1411
- Enumerated
- Aug 30, 2006
- Record last updated
- Apr 5, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (360) 855-1411
- Medicaid ID
- 8333734 WA
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 830 Ball St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stevan Luther, MDFamily Medicine Physician1306952106
- Swee-Hwa Quek, MDFamily Medicine Physician1750356101
Verify Denis A. Harlock in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00041814Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Denis A. Harlock among 5,534 family medicine physician records in Washington
Denis A. Harlock, MD is one of 5,534 family medicine physician records with a practice address in Washington. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileNo · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2016 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 family medicine physician records list a practice address in Sedro Woolley
They are 12 of the 558 NPPES records with a practice address in Sedro Woolley, and 5,534 family medicine physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 5,534 in Washington → Every provider in Sedro Woolley → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Indeep Bal, M.D.Sedro Woolley, WA 982841811304157
- Jonathan Fish, MDSedro Wooley, WA 982841629039599
- Gilson Girotto, D.O.Sedro Woolley, WA 982841083690333
- Krysti LoftonSedro Woolley, WA 982841326698358
- Stevan Luther, MDSedro Woolley, WA 982841306952106
- Morgan Merrill, MDSedro Woolley, WA 982841538324892
- Swee-Hwa Quek, MDSedro Woolley, WA 982841750356101
- William Saunders, MDSedro Woolley, WA 982841710920418
Common questions
What is Denis A. Harlock, MD's NPI number?
Denis A. Harlock, MD's National Provider Identifier (NPI) is 1164532941, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Denis A. Harlock, MD located?
The NPPES record lists a practice address at 830 Ball St, Sedro Woolley, WA, 98284. Phone: (360) 855-1411. Providers update this record themselves, so call before visiting.
How can I verify Denis A. Harlock, MD's license?
NPPES lists Washington license number MD00041814, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.