DR. JOHN ARTHUR DONOVAN M.D.
NPI 1164451688
Internal Medicine - Transplant Hepatology in Los Angeles, CA
About Dr. John Arthur Donovan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN ARTHUR DONOVAN M.D. (NPI 1164451688) is an individual transplant hepatology provider in Los Angeles, California, licensed in California (G55128) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. John Arthur Donovan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Donovan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90033
- Reassigned Medicare billing, California enrollment
- 2,445 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 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.
Referred Medical Equipment & Supplies CMS DME claims 6
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
LOS ANGELES, CA 90033
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 Donovan's NPI number?
The NPI number for John Donovan is 1164451688. It was assigned to this individual provider in the NPPES registry on June 30, 2006.
Where is John Donovan located?
John Donovan practices at 1520 San Pablo St Suite 1000, Los Angeles, CA 90033. The listed phone number is (323) 442-5100.
What is John Donovan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Transplant Hepatology, with taxonomy code 207RT0003X.
Is John Donovan enrolled in Medicare?
Yes. John Donovan is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Donovan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Donovan reassigns Medicare benefits to Usc Care Medical Group, 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 John Donovan'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 John Donovan was last updated on November 14, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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. John Arthur Donovan, M.D. · NPI 1164451688
Transplant Hepatology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since June 30, 2006.
## Identity
- **NPI:** 1164451688 (Entity type: Individual)
- **Enumerated:** June 30, 2006
- **Primary specialty:** Internal Medicine - Transplant Hepatology · taxonomy 207RT0003X
- **State license:** G55128 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1520 SAN PABLO ST, SUITE 1000, Los Angeles, CA 90033-5310
- **Phone:** (323) 442-5100
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Usc Care Medical Group, Inc (NPI 1902846306, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 14, 2020
---
Source: [NPI Profile](https://npiprofile.com/npi/1164451688) · Data from the CMS NPPES public registry.