Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. James L Barlow III, MD

Individual provider Pulmonary Disease Physician · NPI 1336559871

Dr. James L Barlow III, MD is a Hospitalist in Marysville, Washington. Graduated from University of Kentucky College of Medicine in 2014, 12 years ago. Practices with Optum Care Washington PLLC, a 685-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Oregon and Washington.

Years since qualifying
12
Trained at
University of Kentucky College of Medicine
Licensed in
OR, WA
In the registry since
2014
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

2901 174th St NE
Marysville, WA 98271-4743
Phone: (425) 339-5410
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 3640 Nw Samaritan Dr Ste 100c, Corvallis, OR 97330-3784 — (541) 768-1261
  • 3600 Nw Samaritan Dr, Corvallis, OR 97330-3737 — (541) 768-5111
  • 925 Seneca St, Seattle, WA 98101 — (206) 583-6079

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence MD60732591 (WA)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence MD182914 (OR)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD182914 (OR)

Record details

NPI number1336559871
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 6, 2014
Last updated in NPPESJuly 27, 2026
Certification dateJuly 27, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE, PULMONARY DISEASE
Medical schoolUNIVERSITY OF KENTUCKY COLLEGE OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Optum Care Washington Pllc — 685 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount