JOHN NIXON M.D.
NPI 1720465586
Internal Medicine in Los Angeles, CA
About John Nixon M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN NIXON M.D. (NPI 1720465586) is an individual internal medicine provider in Los Angeles, California, licensed in California (A145812) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS and is a graduate of Rush Medical College Of Rush University (2015).
NPPES Registry Identity
Specialties & Licenses 2
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
John Nixon 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 Reassignment
Medicare enrollment records show John Nixon reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90013
- Reassigned Medicare billing, California enrollment
- 1,939 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 4
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 90033 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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
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 Nixon's NPI number?
The NPI number for John Nixon is 1720465586. It was assigned to this individual provider in the NPPES registry on April 30, 2015.
Where is John Nixon located?
John Nixon practices at 1200 N State St Ct-A7d, Los Angeles, CA 90033. The listed phone number is (323) 226-7556.
What is John Nixon's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is John Nixon enrolled in Medicare?
Yes. John Nixon 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 John Nixon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Nixon reassigns Medicare benefits to County Of Los Angeles (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 Nixon'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 Nixon was last updated on December 29, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# John Nixon, M.D. · NPI 1720465586
Internal Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since April 30, 2015.
## Identity
- **NPI:** 1720465586 (Entity type: Individual)
- **Enumerated:** April 30, 2015
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A145812 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1200 N STATE ST, CT-A7D, Los Angeles, CA 90033-1029
- **Phone:** (323) 226-7556 · **Fax:** (323) 226-2657
## 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:** County Of Los Angeles (NPI 1861765877, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rush Medical College Of Rush University, class of 2015
## Record status
- **NPPES last updated:** December 29, 2019
- **Other identifiers:** Medicaid JN3232267556 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1720465586) · Data from the CMS NPPES public registry.