DR. DEBRA ELLEN MASHBERG PH.D.
NPI 1194871665
Psychologist in Old Saybrook, CT

Active since January 26, 2007PECOS Enrolled
20 RESEARCH PKWY, OLD SAYBROOK, CT 06475(800) 370-3651(860) 510-0763 Get Directions Write a Review

NPPES record last updated: October 1, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Debra Ellen Mashberg Ph.d. NPPES

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

DR. DEBRA ELLEN MASHBERG PH.D. (NPI 1194871665) is an individual psychologist in Old Saybrook, Connecticut, licensed in New Jersey (35SI00324900) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1194871665
Entity TypeIndividualFemale
Primary Taxonomy103T00000X
Provider Legal NameDR. DEBRA ELLEN MASHBERGCredential: PH.D.
Location Address20 RESEARCH PKWYOld Saybrook, CT 06475-4214
Mailing Address20 Research PkwyOld Saybrook, CT 06475-4214 · (800) 370-3651 · Fax (860) 510-0763
Fax(860) 510-0763
Sole ProprietorNo
Enumeration DateJanuary 26, 2007
Last NPPES UpdateOctober 1, 2011
✔ NPI 1194871665 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 NJ · 35SI00324900
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.
20 RESEARCH PKWY, Old Saybrook, CT 06475

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. Debra Ellen Mashberg Ph.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignments

4

Medicare enrollment records show Debra Mashberg reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Clinical
85 CRESCENT AVE
Passaic, NJ 07055
  • Reassigned Medicare billing, New Jersey enrollment
  • 319 clinicians in this Medicare group
Psychologist
1 BETHLEHEM PLZ, SUITE 810
Bethlehem, PA 18018
  • Reassigned Medicare billing, Pennsylvania enrollment
  • 18 clinicians in this Medicare group
Family Medicine
1 CALIFORNIA ST STE 2300
San Francisco, CA 94111
  • Reassigned Medicare billing, New Jersey enrollment
  • Medicare enrollment name: Doctor On Demand Professionals Of New Jersey PC
  • 10 clinicians in this Medicare group
Family Medicine
1 CALIFORNIA ST STE 2300
San Francisco, CA 94111
  • Reassigned Medicare billing, New Hampshire enrollment
  • 3 clinicians in this Medicare group

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 20

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

Social Worker (Clinical)
20 RESEARCH PKWY, SUITE C
OLD SAYBROOK, CT 06475
Nurse Practitioner (Psychiatric/Mental Health)
20 RESEARCH PKWY
OLD SAYBROOK, CT 06475
Social Worker (Clinical)
20 RESEARCH PKWY, SUITE C
OLD SAYBROOK, CT 06475
Social Worker (Clinical)
20 RESEARCH PKWY, MEDOPTIONS BEHAVIORAL HEALTH ASSOCIATES LLC
OLD SAYBROOK, CT 06475
Nurse Practitioner (Family)
20 RESEARCH PKWY
OLD SAYBROOK, CT 06475
Social Worker (Clinical)
20 RESEARCH PKWY, C
OLD SAYBROOK, CT 06475
Psychologist (Clinical)
20 RESEARCH PKWY
OLD SAYBROOK, CT 06475
Nurse Practitioner (Psychiatric/Mental Health)
20 RESEARCH PKWY
OLD SAYBROOK, CT 06475

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 Debra Mashberg's NPI number?

The NPI number for Debra Mashberg is 1194871665. It was assigned to this individual provider in the NPPES registry on January 26, 2007.

Where is Debra Mashberg located?

Debra Mashberg practices at 20 Research Pkwy, Old Saybrook, CT 06475. The listed phone number is (800) 370-3651.

What is Debra Mashberg's specialty?

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

Is Debra Mashberg enrolled in Medicare?

Yes. Debra Mashberg is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Debra Mashberg's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Debra Mashberg reassigns Medicare benefits to 4 organizations: Senior Care Therapy LLC (Passaic, NJ), Center For Integrated Behavioral Health,llc (Bethlehem, PA), Doctor On Demand Professionals Of New Jersey, P.C. (San Francisco, CA) and Doctor On Demand Professionals P C (San Francisco, CA). Each 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 Debra Mashberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Debra Mashberg accept?

Health plans from Oscar Health and Oscar Insurance Company list Debra Mashberg 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 Debra Mashberg was last updated on October 1, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.