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

DR. MARIANNE ALFORD OSENTOSKI PH.D.
NPI 1114009933
Psychologist in Mills River, NC

Active since October 20, 2006PECOS EnrolledAccepts Medicare Assignment
133 CHESTNUT RIDGE RD, MILLS RIVER, NC 28759(843) 422-8851 Get Directions Write a Review

NPPES record last updated: August 5, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 5, 2026, Mar 11, 2026, May 13, 2020 and 3 more (6 updates tracked since 2017).

About Dr. Marianne Alford Osentoski Ph.d. NPPES

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

DR. MARIANNE ALFORD OSENTOSKI PH.D. (NPI 1114009933) is an individual psychologist in Mills River, North Carolina, licensed in North Carolina (5643) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1994).

NPPES Registry Identity

NPI1114009933
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. MARIANNE ALFORD OSENTOSKICredential: PH.D.
Location Address133 CHESTNUT RIDGE RDMills River, NC 28759-2692
Mailing Address133 Chestnut Ridge RdMills River, NC 28759-2692 · (843) 422-8851 · Fax (828) 687-1479
Sole ProprietorYes
Medical School CMSOtherGraduated 1994
Enumeration DateOctober 20, 2006
Last NPPES UpdateAugust 5, 20266 updates tracked since enumeration
NPPES CertifiedAugust 5, 2026
NPI 1114009933 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
Licenses Licensed in NC · 5643 Licensed in SC · 1215 Licensed in MI · 6301009251
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.
133 CHESTNUT RIDGE RD, Mills River, NC 28759

Accepted Insurance

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. Marianne Alford Osentoski Ph.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 ID4688568173
PECOS Enrollment IDI20130524000129
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.

Areas of Expertise CMS Part B claims

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.
135 services11 patients

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 Marianne Osentoski's NPI number?

The NPI number for Marianne Osentoski is 1114009933. It was assigned to this individual provider in the NPPES registry on October 20, 2006.

Where is Marianne Osentoski located?

Marianne Osentoski practices at 133 Chestnut Ridge Rd, Mills River, NC 28759. The listed phone number is (843) 422-8851.

What is Marianne Osentoski's specialty?

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

Is Marianne Osentoski enrolled in Medicare?

Yes. Marianne Osentoski 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.

What insurance does Marianne Osentoski accept?

Health plans from Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina, Priority Health and Providence Health Plan and 1 other insurer list Marianne Osentoski 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 Marianne Osentoski was last updated on August 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.