James B. Grierson, MD
Family Medicine Physician · Marysville, WA
James B. Grierson, MD is a family medicine physician with a practice address in Marysville, Washington, and NPI 1679560189, issued on Sep 29, 2005. Check the license (Washington MD00043397, as entered in NPPES) on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- James B. Grierson
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD00043397 WA
Self-reported in NPPES; status is on the state search - Practice location
- 11603 State Ave, Marysville, WA 98271
- Phone
- (360) 658-6800
- Enumerated
- Sep 29, 2005
- Record last updated
- May 25, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (360) 658-6819
- Medicaid ID
- 8387391 WA
- Entity
- Type 1 · individual
Also registered at 11603 State Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Engstrom, MDFamily Medicine Physician1063675346
- Keith Erickson, PA-CPhysician Assistant1225009061
- Labib Labib, MDInternal Medicine Physician1659472181
Verify James B. Grierson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00043397Check 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 family medicine physician records list a practice address in Marysville
They are 42 of the 874 NPPES records with a practice address in Marysville, 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 42 in Marysville → All 5,534 in Washington → Every provider in Marysville →
Other family medicine physician records in Washington
- Shawn Aaron, MDLongview, WA1578560710
- John Abano, M.D.Shoreline, WA1891929857
- Sarah Abbot, DOKirkland, WA1033555180
- Arthur Abbott, M.D.Seattle, WA1255488847
- Dale Abbott, MDBurlington, WA1760453534
- Michael Abbott, MDEast Wenatchee, WA1336179928
- Richard Abbott, M.D.Mount Vernon, WA1689835803
- Charlee Abboud, DOTacoma, WA1174152169
- Suad AbdelazizSeattle, WA1306423421
- Joonis Abdulkhader, M.D.Seattle, WA1518154335
Common questions
What is James B. Grierson, MD's NPI number?
James B. Grierson, MD's National Provider Identifier (NPI) is 1679560189, issued on Sep 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James B. Grierson, MD located?
The NPPES record lists a practice address at 11603 State Ave, Marysville, WA, 98271. Phone: (360) 658-6800. Providers update this record themselves, so call before visiting.
How can I verify James B. Grierson, MD's license?
NPPES lists Washington license number MD00043397, 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.