DR. MAXINE ELLENBERG ARNSDORF PH.D.
NPI 1598892762
Psychologist in Silver Spring, MD

Active since February 27, 2007Opted out of Medicare · through Jul 1, 2027
1817 AUGUST DR, SILVER SPRING, MD 20902(301) 593-6194(301) 593-5232 Get Directions Write a Review

NPPES record last updated: September 11, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. Maxine Ellenberg Arnsdorf Ph.d. NPPES

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

DR. MAXINE ELLENBERG ARNSDORF PH.D. (NPI 1598892762) is an individual psychologist in Silver Spring, Maryland, licensed in Maryland (01777) and active in the NPI registry since February 2007. She has opted out of Medicare through July 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1598892762
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. MAXINE ELLENBERG ARNSDORFCredential: PH.D.
Location Address1817 AUGUST DRSilver Spring, MD 20902-4013
Mailing Address1817 August DrSilver Spring, MD 20902-4013 · (301) 593-6194 · Fax (301) 593-5232
Fax(301) 593-5232
Sole ProprietorYes
Enumeration DateFebruary 27, 2007
Last NPPES UpdateSeptember 11, 2025
NPI 1598892762 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in MD · 01777
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.
Also ListedPsychologist · Adult Development & AgingTaxonomy 103TA0700X · License 01777 (MD)
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 01777 (MD)
Also ListedPsychologist · Clinical Child & AdolescentTaxonomy 103TC2200X · License 01777 (MD)
1817 AUGUST DR, Silver Spring, MD 20902

Other Identifiers 1

Other027152MD · Valueoptions

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Opted out of Medicare

Dr. Maxine Ellenberg Arnsdorf Ph.d. has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from July 1, 2019 through July 1, 2027.

Opt-Out Effective DateJuly 1, 2019
Opt-Out In Effect ThroughJuly 1, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

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 Maxine Arnsdorf's NPI number?

The NPI number for Maxine Arnsdorf is 1598892762. It was assigned to this individual provider in the NPPES registry on February 27, 2007.

Where is Maxine Arnsdorf located?

Maxine Arnsdorf practices at 1817 August Dr, Silver Spring, MD 20902. The listed phone number is (301) 593-6194.

What is Maxine Arnsdorf's specialty?

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

Is Maxine Arnsdorf enrolled in Medicare?

No. Maxine Arnsdorf has opted out of Medicare through July 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Maxine Arnsdorf was last updated on September 11, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.