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Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.

WARREN JOHN MAAS, MA, LP, JD

Active

Geriatric Psychologist · SAINT PAUL, MN

Registration Details

NPI Number
1912086588
Provider Type
Individual
Gender
Male
NPI Issued
Nov 3, 2006 (19.508394132302 yrs)
Last Updated
Sep 11, 2025
Licenses
LP1091 (MN)
LP1091 (MN)
LP1091 (MN)

Practice Information

Address
1821 UNIVERSITY AVE W
SUITE N385
SAINT PAUL, MN, 551042801
Browse MN providers · Browse ZIP 55104
Phone
6516448515
Fax
6516443451
Primary Specialty
Geriatric Psychologist
103TP2701X
Additional Specialty
Psychologist
Additional Specialty
Geriatric Psychologist

Other Geriatric Psychologist Providers in SAINT PAUL, MN

Name Credential NPI
DR. JANE MARIE RAUENHORST PH.D. 1396831962
DR. DAVID HANRY DIPMAN PHD LP 1386723161
MR. NATHANIEL STEWART JR. M.A., L.P. 1225199052
MRS. LAURA A. BOE M.A. L.P. 1548475296
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.