DR. JOSEPH TYLER LONERGAN M.D.
NPI 1962427310
Internal Medicine in San Diego, CA
About Dr. Joseph Tyler Lonergan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOSEPH TYLER LONERGAN M.D. (NPI 1962427310) is an individual internal medicine provider in San Diego, California, licensed in California (A55815) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in San Diego, and is a graduate of Geisel School Of Medicine At Dartmouth (1994).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 1
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. Joseph Tyler Lonergan M.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.
Medicare Billing Reassignments
2Medicare enrollment records show Joseph Lonergan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 1,051 clinicians in this Medicare group
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 577 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.
Areas of Expertise CMS Part B claims 3
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 92103 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Joseph Lonergan's NPI number?
The NPI number for Joseph Lonergan is 1962427310. It was assigned to this individual provider in the NPPES registry on July 13, 2006.
Where is Joseph Lonergan located?
Joseph Lonergan practices at 4168 Front St Fl 3, San Diego, CA 92103. The listed phone number is (800) 926-8273.
What is Joseph Lonergan's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Joseph Lonergan enrolled in Medicare?
Yes. Joseph Lonergan 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 organizations bill Medicare for Joseph Lonergan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Lonergan reassigns Medicare benefits to 2 organizations: Regents Of The University Of California (San Diego, CA) and Centro De Salud De La Comunidad De San Ysidro,inc (San Diego, 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 Joseph Lonergan'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 Joseph Lonergan was last updated on January 27, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 months 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.