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

Dr. Daniel J Diekema, MD

Individual provider Internal Medicine Physician · NPI 1104801489

Dr. Daniel J Diekema, MD is an Infectious Disease in South Portland, Maine. Graduated from Vanderbilt University School of Medicine in 1989, 37 years ago. Practices with Mainehealth, a 2,615-clinician group and accepts Medicare assignment. Licensed in Iowa and Maine.

Years since qualifying
37
Trained at
Vanderbilt University School of Medicine
Licensed in
IA, ME
In the registry since
2005
Specialties on file
4
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

41 Donald B Dean Dr
South Portland, ME 04106-3252
Phone: (207) 661-7901
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence MD14027 (ME)
Internal Medicine Physician Taxonomy 207R00000X · Licence 28731 (IA)
Infectious Disease Physician Taxonomy 207RI0200X · Licence 28731 (IA)
Anatomic Pathology & Clinical Pathology Physician Taxonomy 207ZP0102X · Licence 28731 (IA)

Record details

NPI number1104801489
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 9, 2005
Last updated in NPPESSeptember 12, 2022
Certification dateSeptember 12, 2022

Medicare enrollment

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

Medicare specialtyINFECTIOUS DISEASE
Also practisesINTERNAL MEDICINE
Medical schoolVANDERBILT UNIVERSITY SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in South Portland