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

Q: What is Mark Kiefner's NPI number?

The NPI number for Mark Kiefner is 1346457017. It was assigned to this individual provider in the NPPES registry on May 16, 2007.

Q: What is Mark Kiefner's specialty?

The primary specialty registered for this NPI is Clinical Neuropsychologist with taxonomy code 103G00000X.

Q: When was this NPI record last updated?

The NPPES record for Mark Kiefner was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

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: August 16, 2026.

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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

Phone(207) 761-8402

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

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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.

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