JOHN PARK MD
NPI 1851823504
Internal Medicine in Los Angeles, CA
About John Park Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN PARK MD (NPI 1851823504) is an individual internal medicine provider in Los Angeles, California, licensed in California (A157957) and active in the NPI registry since March 2017. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (2017).
NPPES Registry Identity
Specialties & Licenses
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 Park Md 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 John Park reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90027
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Los Angeles, CA 90038
- 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
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 90027 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 90027
LOS ANGELES, CA 90027
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 Park's NPI number?
The NPI number for John Park is 1851823504. It was assigned to this individual provider in the NPPES registry on March 31, 2017.
Where is John Park located?
John Park practices at 4867 W Sunset Blvd, Los Angeles, CA 90027. The listed phone number is (833) 574-2273.
What is John Park's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is John Park enrolled in Medicare?
Yes. John Park 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 John Park's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Park reassigns Medicare benefits to 2 organizations: Southern California Permanente Medical Group (Los Angeles, CA) and County Of Los Angeles (Los Angeles, 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 John Park'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 Park was last updated on December 23, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 Park, MD · NPI 1851823504
Internal Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since March 31, 2017.
## Identity
- **NPI:** 1851823504 (Entity type: Individual)
- **Enumerated:** March 31, 2017
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A157957 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4867 W SUNSET BLVD, Los Angeles, CA 90027-5969
- **Phone:** (833) 574-2273
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1134151657, Los Angeles, CA); County Of Los Angeles (NPI 1083808836, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 2017
## Record status
- **NPPES last updated:** December 23, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1851823504) · Data from the CMS NPPES public registry.