Larry G. Ryan , MA
Psychologist • Waterloo, IA
Notice of NPI Deactivation & Inactive Practice Status
According to official public domain records published by CMS (Centers for Medicare & Medicaid Services) in the National Provider Identifier (NPPES) Registry, Larry Ryan has officially deactivated this NPI record and ceased active healthcare practice.
Professional Overview & Biography Verified Profile Summary
Larry Ryan, MA was a registered Psychologist practicing in Waterloo, IA. Throughout an active medical career spanning 19 years, Larry Ryan provided care at the practice location at 3251 W 9TH ST until profile deactivation on 2025-12-11.
Practice Location & Contact Primary Location
3251 W 9th St
Waterloo, IA 507025310
Specialty Benchmarks & Practice Insights
Comparative analytics for Psychologist in Waterloo, IA
Practicing in Waterloo, IA (272 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
NUCC Taxonomy Code: 103T00000X
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Registered Nurse - Psychiatric/Mental Health
Registered Nurse
Licensed Practical Nurse
Licensed Practical Nurse
Registered Nurse - Psychiatric/Mental Health
Registered Nurse
Psychologist
Doctor of Philosophy (Ph.D.)
Social Worker
Licensed Master Social Worker
Social Worker - Clinical
Licensed Independent Social Worker
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Record deactivated on December 11, 2025
NPI status registered as active in NPPES database
Registered at 3251 W 9TH ST, WATERLOO, IA 507025310 (Tel: 3192342893)
Registered at 409 HOME PARK BLVD, WATERLOO, IA 507012847 (Tel: 3192326182)
Recorded as LARRY RYAN, MA
Psychologist (License #039 in IA)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
409 Home Park Blvd
Waterloo, IA 507012847
Phone: 3192326182
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