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

Dr. Maria Susana Castejon Welchez, MD

Individual provider Internal Medicine Physician · NPI 1033396437

Dr. Maria Susana Castejon Welchez, MD is an Internal Medicine in Bismarck, North Dakota. Qualified in 2004, 22 years ago. Practices with Sanford Bismarck, a 561-clinician group and accepts Medicare assignment. Licensed in Georgia and North Dakota.

Years since qualifying
22
Licensed in
GA, ND
In the registry since
2008
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

300 N 7th St
Bismarck, ND 58501-4439
Phone: (701) 323-6000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 13905 (ND)
Internal Medicine Physician Taxonomy 207R00000X · Licence 13905 (ND)
Internal Medicine Physician Taxonomy 207R00000X · Licence 002746 (GA)

Record details

NPI number1033396437
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 28, 2008
Last updated in NPPESJuly 23, 2021
Certification dateJuly 23, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Sanford Bismarck — 561 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Bismarck