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

Individual provider Psychologist · NPI 1336244631

Leif Eric Leaf, PHD is a Clinical Psychologist in Leavenworth, Kansas. Qualified in 1986, 40 years ago. Practices with Frederick J Tirrell PHD Professional Association, a 4-clinician group and accepts Medicare assignment. Licensed in Kansas and Missouri.

Years since qualifying
40
Licensed in
KS, MO
In the registry since
2006
Specialties on file
2
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

3515 S 4th St Professional Association
Leavenworth, KS 66048
Phone: (913) 651-8415
Fax: (913) 772-8580
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 701 (KS)
Psychologist Taxonomy 103T00000X · Licence 01356 (MO)

Record details

NPI number1336244631
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedSeptember 13, 2006
Last updated in NPPESJuly 8, 2007
Mailing address13829 Harbor Dr, Bonner Springs, KS 66012

Medicare enrollment

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

Medicare specialtyCLINICAL PSYCHOLOGIST
Medical schoolOTHER
Graduated 1986 (40 years in practice)
Group practice Frederick J Tirrell Phd Professional Association — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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