NATHAN & SAWYER
NPI 1649462276
Psychologist - Clinical in Fullerton, CA

Q: What is John D. Sawyer, Phd's NPI number?

The NPI number for John D. Sawyer, Phd is 1649462276. It was assigned to this organization in the NPPES registry on August 17, 2007. The provider is doing business as Nathan & Sawyer.

Q: What is John D. Sawyer, Phd's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Active since August 17, 2007

680 LANGSDORF DR, SUITE 219, FULLERTON, CA 92831(714) 871-9732(714) 871-4561 Get Directions Write a Review

NPPES record last updated: August 17, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Nathan & Sawyer NPPES

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

NATHAN & SAWYER (NPI 1649462276) is a healthcare organization registered as a clinical in Fullerton, California and active in the NPI registry since August 2007. The organization lists Alison Nathan, Clinical Psychologist, as its authorized official.

NPPES Registry Identity

NPI1649462276

Entity TypeOrganization

Primary Taxonomy103TC0700X

Legal Business NameJOHN D. SAWYER, PHD

Location Address680 LANGSDORF DR, SUITE 219Fullerton, CA 92831-3702

Mailing Address680 Langsdorf Dr, Suite 219Fullerton, CA 92831-3702 · (714) 871-9732 · Fax (714) 871-4561

Phone(714) 871-9732

Fax(714) 871-4561

Organization SubpartNo

Authorized OfficialAlison NathanClinical Psychologist · (714) 871-9732

Enumeration DateAugust 17, 2007

✔ NPI 1649462276 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in CA · PSY 11021

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

680 LANGSDORF DR, Fullerton, CA 92831

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Other Names 1

Doing Business AsNathan & Sawyer

Other Identifiers 1

Medicare PINCP 11021CA

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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.

CHILD GUIDANCE CENTER, INC.

Community/Behavioral Health

680 LANGSDORF DR, SUITE 200
FULLERTON, CA 92831

Orange County (714) 871-9264

ALEXANDER RICHTER M.D.

Orthopaedic Surgery (Orthopaedic Surgery of the Spine)

680 LANGSDORF DR, SUITE 103
FULLERTON, CA 92831

Orange County (714) 879-0050

DAVID DOWNS MD

Orthopaedic Surgery

680 LANGSDORF DR, SUITE 103
FULLERTON, CA 92831

Orange County (714) 879-0050

KENDRA HIGGINS P.A.

Physician Assistant (Medical)

680 LANGSDORF DR, SUITE 103
FULLERTON, CA 92831

Orange County (714) 879-0050

MR. RONALD LEE CUNNINGHAM MPT

Physical Therapist

680 LANGSDORF DR, SUITE 100
FULLERTON, CA 92831

Orange County (714) 871-0460

DR. BETTY ANN HAMMOND PH.D

Psychologist (Clinical)

680 LANGSDORF DR, 219
FULLERTON, CA 92831

Orange County (714) 306-9168

STEPHANIE BAUTISTA

Student in an Organized Health Care Education/Training Program

680 LANGSDORF DR, SUITE 200
FULLERTON, CA 92831

Orange County (714) 953-4455

NANCY MARIE HYBL-BOSTWICK L.C.S.W.

Social Worker (Clinical)

680 LANGSDORF DR, SUITE 219
FULLERTON, CA 92831

Orange County (714) 578-0990

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 John D. Sawyer, Phd's NPI number?

The NPI number for John D. Sawyer, Phd is 1649462276. It was assigned to this organization in the NPPES registry on August 17, 2007. The provider is doing business as Nathan & Sawyer.

Where is John D. Sawyer, Phd located?

John D. Sawyer, Phd is located at 680 Langsdorf Dr Suite 219, Fullerton, CA 92831. The listed phone number is (714) 871-9732.

What is John D. Sawyer, Phd's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for John D. Sawyer, Phd was last updated on August 17, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.