DR. FRED L HOLTZ PH.D.
NPI 1629175039
Psychologist in Plainview, NY

Active since September 20, 2006PECOS Enrolled
535 S OYSTER BAY RD, PLAINVIEW, NY 11803(516) 888-4357(516) 513-1456 Get Directions Write a Review

NPPES record last updated: September 27, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 27, 2024, Jul 31, 2024 (2 updates tracked since 2024).

About Dr. Fred L Holtz Ph.d. NPPES

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

DR. FRED L HOLTZ PH.D. (NPI 1629175039) is an individual psychologist in Plainview, New York, licensed in New York (010194-1) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2009).

NPPES Registry Identity

NPI1629175039
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. FRED L HOLTZCredential: PH.D.
Location Address535 S OYSTER BAY RDPlainview, NY 11803-3310
Mailing Address535 S Oyster Bay RdPlainview, NY 11803-3310 · (516) 888-4357 · Fax (516) 513-1456
Fax(516) 513-1456
Sole ProprietorYes
Medical School CMSOtherGraduated 2009
Enumeration DateSeptember 20, 2006
Last NPPES UpdateSeptember 27, 20242 updates tracked since enumeration
NPPES CertifiedSeptember 27, 2024
✔ NPI 1629175039 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 NY · 010194-1
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.
535 S OYSTER BAY RD, Plainview, NY 11803

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Fred L Holtz Ph.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4880672666
PECOS Enrollment IDI20040708001172
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Fred Holtz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Psychologist
400 S OYSTER BAY RD, SUITE 204
Hicksville, NY 11801
  • Reassigned Medicare billing, New York enrollment

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 18

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Marriage & Family Therapist
535 S OYSTER BAY RD
PLAINVIEW, NY 11803
Counselor (Mental Health)
535 S OYSTER BAY RD
PLAINVIEW, NY 11803
Community/Behavioral Health
535 S OYSTER BAY RD
PLAINVIEW, NY 11803
Psychologist
535 S OYSTER BAY RD
PLAINVIEW, NY 11803
Counselor (Mental Health)
535 S OYSTER BAY RD
PLAINVIEW, NY 11803
Counselor (Mental Health)
535 S OYSTER BAY RD
PLAINVIEW, NY 11803
Social Worker
535 S OYSTER BAY RD
PLAINVIEW, NY 11803
Social Worker
535 S OYSTER BAY RD
PLAINVIEW, NY 11803

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 Fred Holtz's NPI number?

The NPI number for Fred Holtz is 1629175039. It was assigned to this individual provider in the NPPES registry on September 20, 2006.

Where is Fred Holtz located?

Fred Holtz practices at 535 S Oyster Bay Rd, Plainview, NY 11803. The listed phone number is (516) 888-4357.

What is Fred Holtz's specialty?

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

Is Fred Holtz enrolled in Medicare?

Yes. Fred Holtz is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Fred Holtz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Fred Holtz reassigns Medicare benefits to Psychological Assessment And Screening Services PC (Hicksville, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Fred Holtz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Fred Holtz accept?

Health plans from Oscar Health list Fred Holtz as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Fred Holtz was last updated on September 27, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.