DR. JAMES T LONG MD PHD
NPI 1538149398
Psychiatry & Neurology - Psychiatry in Los Angeles, CA
About Dr. James T Long Md Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JAMES T LONG MD PHD (NPI 1538149398) is an individual psychiatry provider in Los Angeles, California, licensed in California (G19016) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS and is a graduate of Columbia University College Of Physicians And Surgeons (1969).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
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
Dr. James T Long Md Phd 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.
Medicare Billing Reassignment
Medicare enrollment records show James Long reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90049
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: James T Long MD Phd Inc.
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90049 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Long's NPI number?
The NPI number for James Long is 1538149398. It was assigned to this individual provider in the NPPES registry on January 18, 2006.
Where is James Long located?
James Long practices at 650 Moreno Avenue, Los Angeles, CA 90049. The listed phone number is (310) 395-7392.
What is James Long's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is James Long enrolled in Medicare?
Yes. James Long 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 James Long's services?
According to the CMS Revalidation Reassignment List (October 2026 release), James Long reassigns Medicare benefits to James T. Long, M.D., Ph.D., Inc. (Los Angeles, CA). 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 James Long'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 James Long 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.
# Dr. James T Long, MD PHD · NPI 1538149398
Psychiatry physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since January 18, 2006.
## Identity
- **NPI:** 1538149398 (Entity type: Individual)
- **Enumerated:** January 18, 2006
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** G19016 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 650 MORENO AVENUE, Los Angeles, CA 90049
- **Phone:** (310) 395-7392 · **Fax:** (310) 394-7902
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** James T. Long, M.D., Ph.D., Inc. (NPI 1518207604, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Columbia University College Of Physicians And Surgeons, class of 1969
## Record status
- **NPPES last updated:** February 26, 2013
- **Other identifiers:** Medicare UPIN A40483; Medicare ID-Type Unspecified G19016 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1538149398) · Data from the CMS NPPES public registry.