JOHN FRANCIS LING III M.D.
NPI 1023436391
Ophthalmology in Lakewood, CA
About John Francis Ling Iii M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN FRANCIS LING III M.D. (NPI 1023436391) is an individual ophthalmology provider in Lakewood, California, licensed in California (A155679) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS and is a graduate of Indiana University School Of Medicine (2014).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
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 Francis Ling Iii 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
3Medicare enrollment records show John Ling reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Long Beach, CA 90805
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1043473390 (California)
- 13 clinicians in this Medicare group
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 85 clinicians in this Medicare group
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 113 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 16
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 90805 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 2
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 John Ling's NPI number?
The NPI number for John Ling is 1023436391. It was assigned to this individual provider in the NPPES registry on April 2, 2014.
Where is John Ling located?
John Ling practices at 3300 E South St Ste 105, Lakewood, CA 90805. The listed phone number is (562) 531-2020.
What is John Ling's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is John Ling enrolled in Medicare?
Yes. John Ling 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 Ling's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Ling reassigns Medicare benefits to 3 organizations: Lakewood Eye Physicians And Surgeons Inc A Medical Group (Long Beach, CA), Regents Of The University Of California (Orange, CA) and Regents Of The University Of California (Orange, 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 Ling's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Ling accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas list John Ling as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for John Ling was last updated on April 17, 2020. 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 Francis Ling III, M.D. · NPI 1023436391
Ophthalmology physician in Lakewood, California. Individual provider, active in the CMS NPPES registry since April 2, 2014.
## Identity
- **NPI:** 1023436391 (Entity type: Individual)
- **Enumerated:** April 2, 2014
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** A155679 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3300 E SOUTH ST STE 105, Lakewood, CA 90805-4579
- **Phone:** (562) 531-2020
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Lakewood Eye Physicians And Surgeons Inc A Medical Group (NPI 1164406021, Long Beach, CA); Regents Of The University Of California (NPI 1487602579, Orange, CA); Regents Of The University Of California (NPI 1871541953, Orange, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Indiana University School Of Medicine, class of 2014
## Record status
- **NPPES last updated:** April 17, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1023436391) · Data from the CMS NPPES public registry.