Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. MOLLY KIEREIN PSYD
NPI 1891041760
Psychologist in Los Angeles, CA

Active since July 30, 2012Accepts Medicare Assignment
6220 W 3RD ST APT 116, LOS ANGELES, CA 90036(415) 723-1875 Get Directions Write a Review

NPPES record last updated: October 8, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 8, 2026, Mar 26, 2018 (2 updates tracked since 2018).

About Dr. Molly Kierein Psyd NPPES

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

DR. MOLLY KIEREIN PSYD (NPI 1891041760) is an individual psychologist in Los Angeles, California, licensed in California (PSY29895) and active in the NPI registry since July 2012. She is a graduate of Other (2016).

NPPES Registry Identity

NPI1891041760
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. MOLLY KIEREINCredential: PSYD
Location Address6220 W 3RD ST APT 116Los Angeles, CA 90036-3169
Mailing Address6220 W 3rd St Apt 116Los Angeles, CA 90036-3169 · (415) 723-1875
Sole ProprietorYes
Medical School CMSOtherGraduated 2016
Enumeration DateJuly 30, 2012
Last NPPES UpdateOctober 8, 20262 updates tracked since enumeration
NPPES CertifiedOctober 8, 2026
✔ NPI 1891041760 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License✔ Licensed in CA · PSY29895
Definition
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.
6220 W 3RD ST APT 116, Los Angeles, CA 90036

Other Names 1

Professional Name (2)Dr. Molly Kierein Psyd

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Molly Kierein Psyd is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7618470527
PECOS Enrollment IDI20250915002048

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Molly Kierein's NPI number?

The NPI number for Molly Kierein is 1891041760. It was assigned to this individual provider in the NPPES registry on July 30, 2012. The provider is also known as Dr. Molly Kierein Psyd.

Where is Molly Kierein located?

Molly Kierein practices at 6220 W 3rd St Apt 116, Los Angeles, CA 90036. The listed phone number is (415) 723-1875.

What is Molly Kierein's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

Is Molly Kierein enrolled in Medicare?

Yes. Molly Kierein is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Molly Kierein was last updated on October 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 days 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.