MARY ELLEN FRAZIER PSY. D.
NPI 1972554640
Psychologist in Naples, FL

Active since May 15, 2006PECOS EnrolledAccepts Medicare Assignment
834 ANCHOR RODE DR, NAPLES, FL 34103(239) 643-9889(239) 643-7074 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mary Ellen Frazier Psy. D. NPPES

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

MARY ELLEN FRAZIER PSY. D. (NPI 1972554640) is an individual psychologist in Naples, Florida, licensed in Florida (PY 0038) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1985).

NPPES Registry Identity

NPI1972554640
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameMARY ELLEN FRAZIERCredential: PSY. D.
Location Address834 ANCHOR RODE DRNaples, FL 34103-2739
Mailing Address834 Anchor Rode DrNaples, FL 34103-2739 · (239) 643-9889 · Fax (239) 643-7074
Fax(239) 643-7074
Sole ProprietorNo
Medical School CMSOtherGraduated 1985
Enumeration DateMay 15, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1972554640 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 FL · PY 0038
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.
834 ANCHOR RODE DR, Naples, FL 34103

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mary Ellen Frazier Psy. D. 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 ID1052595337
PECOS Enrollment IDI20110421000492
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 Mary Frazier reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Clinical
834 ANCHOR RODE DR
Naples, FL 34103
  • Reassigned Medicare billing, Florida enrollment

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

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 1 hour 90837
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.
439 services36 patients
Psychiatric diagnostic evaluation 90791
A psychiatric diagnostic evaluation is a thorough assessment used to identify any mental health conditions you may have. It involves a detailed discussion about your symptoms, thoughts, feelings and behavior patterns. Your medical history and family's mental health history are also considered.
12 services12 patients

Other Providers at the Same Location NPPES

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

Psychologist (Clinical)
834 ANCHOR RODE DR
NAPLES, FL 34103

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 Mary Frazier's NPI number?

The NPI number for Mary Frazier is 1972554640. It was assigned to this individual provider in the NPPES registry on May 15, 2006.

Where is Mary Frazier located?

Mary Frazier practices at 834 Anchor Rode Dr, Naples, FL 34103. The listed phone number is (239) 643-9889.

What is Mary Frazier's specialty?

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

Is Mary Frazier enrolled in Medicare?

Yes. Mary Frazier 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.

Which organization bills Medicare for Mary Frazier's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Frazier reassigns Medicare benefits to Mary Ellen Frazier, Psy.D. P.A. (Naples, FL). 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 Mary Frazier's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Mary Frazier was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.