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

Mark D. Baldwin, DO

Individual provider Nephrology Physician · NPI 1477656304

Mark D. Baldwin, DO is a Nephrology Physician in Mount Vernon, Washington. Licensed in Ohio and Washington. Registered with an NPI since 2006.

Licensed in
OH, WA
In the registry since
2006
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

819 S 13th St
Mount Vernon, WA 98273
Phone: (360) 814-6230
Fax: (360) 814-6240
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence OP60600878 (WA)
Nephrology Physician Taxonomy 207RN0300X · Licence 34-00-5880-B (OH)
Nephrology Physician Taxonomy 207RN0300X · Licence OP60600878 (WA)

Record details

NPI number1477656304
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedSeptember 6, 2006
Last updated in NPPESJanuary 4, 2016
Mailing address1400 E. Kincaid Street, Attn: Credentialing, Mount Vernon, WA 98274-4127

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