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

Byron L Marshall, NP-C

Individual provider Registered Nurse · NPI 1780819110

Byron L Marshall, NP-C is a Nurse Practitioner in Portland, Maine. Qualified in 2017, 9 years ago. Practices with Mainehealth, a 2,615-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Maine.

Years since qualifying
9
Licensed in
ME
In the registry since
2009
Specialties on file
2
What do these letters mean?
NP-C — Nurse Practitioner, Certified
A nurse practitioner certified by the AANP.

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Practice location Address checks out

22 Bramhall St
Portland, ME 04102-3134
Phone: (207) 662-2911
Fax: (207) 662-6006
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence CNP171130 (ME)
Registered Nurse Taxonomy 163W00000X · Licence R056280 (ME)

Record details

NPI number1780819110
Entity typeIndividual (Type 1)
GenderMale
Credentials NP-C
Sole proprietorNo
NPI enumeratedMay 29, 2009
Last updated in NPPESJune 18, 2021
Certification dateJune 18, 2021

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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