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

Mark Albert Nelson, MD

Individual provider Gastroenterology Physician · NPI 1891737763

Mark Albert Nelson, MD is a Gastroenterology in LA Porte, Indiana. Qualified in 1987, 39 years ago. Practices with Franciscan Physician Network, a 1,171-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
39
Licensed in
IN
In the registry since
2006
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

900 I St Fl 2
LA Porte, IN 46350-5533
Phone: (219) 872-6566
Fax: (219) 872-2712
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 01040264A (IN)

Record details

NPI number1891737763
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 12, 2006
Last updated in NPPESOctober 13, 2023
Certification dateOctober 13, 2023
Mailing addressPo Box 781076, Detroit, MI 48278-1076

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolOTHER
Graduated 1987 (39 years in practice)
Group practice Franciscan Physician Network — 1171 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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