Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mr. Henry Calvin Martensen III, PA-C

Individual provider Physician Assistant · NPI 1669836300

Mr. Henry Calvin Martensen III, PA-C is a Physician Assistant in South Portland, Maine. Qualified in 2016, 10 years ago. Practices with Mainehealth, a 2,615-clinician group and accepts Medicare assignment. Licensed in Maine and North Carolina.

Years since qualifying
10
Licensed in
ME, NC
In the registry since
2016
Specialties on file
2
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

119 Gannett Dr
South Portland, ME 04106-6942
Phone: (207) 781-1551
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 0010-06360 (NC)
Physician Assistant Taxonomy 363A00000X · Licence PA2229 (ME)

Record details

NPI number1669836300
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorNo
NPI enumeratedApril 8, 2016
Last updated in NPPESJuly 16, 2021
Certification dateJuly 16, 2021

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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