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JAMES T. LONG, M.D., PH.D., INC.
NPI 1518207604
Psychiatry & Neurology - Psychiatry in Los Angeles, CA

Active since February 26, 2013
650 MORENO AVE, LOS ANGELES, CA 90049(310) 395-7392(310) 394-7902 Get Directions Write a Review

NPPES record last updated: February 26, 2013. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About James T. Long, M.d., Ph.d., Inc. NPPES

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

JAMES T. LONG, M.D., PH.D., INC. (NPI 1518207604) is a healthcare organization registered as a psychiatry in Los Angeles, California and active in the NPI registry since February 2013. The organization lists James T. Long, Owner, as its authorized official.

NPPES Registry Identity

NPI1518207604
Entity TypeOrganization
Primary Taxonomy2084P0800X
Legal Business NameJAMES T. LONG, M.D., PH.D., INC.
Location Address650 MORENO AVELos Angeles, CA 90049-4831
Mailing Address650 Moreno AveLos Angeles, CA 90049-4831 · (310) 395-7392 · Fax (310) 394-7902
Phone(310) 395-7392
Fax(310) 394-7902
Organization SubpartNo
Authorized OfficialJames T. LongOwner · (310) 395-7392
Enumeration DateFebruary 26, 2013
✔ NPI 1518207604 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · G19016
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
650 MORENO AVE, Los Angeles, CA 90049
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Other Identifiers 2

Medicare UPINA40483
OtherG19016CA · Medicare Ptan

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

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

James T. Long, M.d., Ph.d., Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by March 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateCaliforniaEnrollment IDO20130423000313Non-DME Part B · Clinic/Group PracticeDue dateMarch 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to James T. Long, M.D., Ph.D., Inc., which bills Medicare for the services this clinician delivers.

Clinician (1)

James Long, MD PHD
Psychiatry
NPI 1538149398
650 MORENO AVENUE
Los Angeles, CA 90049
(310) 395-7392
✔ PECOS✔ Accepts MedicareSame address

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

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 James T. Long, M.D., Ph.D., Inc.'s NPI number?

The NPI number for James T. Long, M.D., Ph.D., Inc. is 1518207604. It was assigned to this organization in the NPPES registry on February 26, 2013.

Where is James T. Long, M.D., Ph.D., Inc. located?

James T. Long, M.D., Ph.D., Inc. is located at 650 Moreno Ave, Los Angeles, CA 90049. The listed phone number is (310) 395-7392.

What is James T. Long, M.D., Ph.D., Inc.'s specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is James T. Long, M.D., Ph.D., Inc. enrolled in Medicare?

Yes. James T. Long, M.D., Ph.D., Inc. is registered in the Medicare PECOS enrollment system.

When is James T. Long, M.D., Ph.D., Inc.'s Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by March 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through James T. Long, M.D., Ph.D., Inc.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Psychiatry) reassigns their Medicare billing to James T. Long, M.D., Ph.D., Inc.. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for James T. Long, M.D., Ph.D., Inc. was last updated on February 26, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.