MARK GREGORY KIEFNER PHD
NPI 1346457017
Clinical Neuropsychologist in Portland, ME

Active since May 16, 2007
26 PORTLAND STREET, PORTLAND, ME 04101(207) 761-8402(207) 761-8405 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Mark Gregory Kiefner Phd NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK GREGORY KIEFNER PHD (NPI 1346457017) is an individual clinical neuropsychologist in Portland, Maine, licensed in Maine (PS815) and active in the NPI registry since May 2007.

NPPES Registry Identity

NPI1346457017
Entity TypeIndividualMale
Primary Taxonomy103G00000X
Provider Legal NameMARK GREGORY KIEFNERCredential: PHD
Location Address26 PORTLAND STREETPortland, ME 04101
Mailing AddressPo Box 8600Portland, ME 04104 · (207) 774-6323 · Fax (207) 761-8460
Fax(207) 761-8405
Sole ProprietorNo
Enumeration DateMay 16, 2007
Last NPPES UpdateJuly 8, 2007
NPI 1346457017 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyClinical NeuropsychologistBehavioral Health & Social Service Providers
Taxonomy Code103G00000X
License Licensed in ME · PS815
Definition

A clinical psychologist who applies principles of assessment and intervention based upon the scientific study of human behavior as it relates to normal and abnormal functioning of the central nervous system. The specialty is dedicated to enhancing the understanding of brain-behavior relationships and the application of such knowledge to human problems.

26 PORTLAND STREET, Portland, ME 04101

Other Identifiers 2

Other010593ME · Anthem
Medicare ID-Type UnspecifiedMM5044ME

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Occupational Therapist
26 PORTLAND STREET
PORTLAND, ME 04101
Recreation Therapist
26 PORTLAND STREET
PORTLAND, ME 04101
Licensed Practical Nurse
26 PORTLAND STREET
PORTLAND, ME 04101
Registered Nurse
26 PORTLAND STREET
PORTLAND, ME 04101
Recreation Therapist
26 PORTLAND STREET
PORTLAND, ME 04101
Social Worker
26 PORTLAND STREET
PORTLAND, ME 04101
Social Worker
26 PORTLAND STREET
PORTLAND, ME 04101
Occupational Therapist
26 PORTLAND STREET
PORTLAND, ME 04101

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1346457017, enumerated as an "individual" on May 16, 2007.

The provider is located at 26 PORTLAND STREET PORTLAND, ME 04101 and the phone number is (207) 761-8402.

Clinical Neuropsychologist with taxonomy code 103G00000X.

The provider might be accepting Accepts: Anthem Blue Cross, Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.