DR. JOHN ERICK ESSER OD
NPI 1790855062
Optometrist in Fullerton, CA
About Dr. John Erick Esser Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN ERICK ESSER OD (NPI 1790855062) is an individual optometrist in Fullerton, California, licensed in California (11350T) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2000).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Dr. John Erick Esser Od 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 Esser reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fullerton, CA 92835
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: John D Zdral MD Inc
- 3 clinicians in this Medicare group
Chino Hills, CA 91709
- Reassigned Medicare billing, California enrollment
- 5,228 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 92835 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FULLERTON, CA 92835
FULLERTON, CA 92835
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 Esser's NPI number?
The NPI number for John Esser is 1790855062. It was assigned to this individual provider in the NPPES registry on November 8, 2006.
Where is John Esser located?
John Esser practices at 301 W Bastanchury Rd Suite 10, Fullerton, CA 92835. The listed phone number is (714) 879-7372.
What is John Esser's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is John Esser enrolled in Medicare?
Yes. John Esser 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 Esser's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Esser reassigns Medicare benefits to 2 organizations: John D. Zdral, M.D., Inc. (Fullerton, CA) and Southern California Permanente Medical Group (Chino Hills, 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 Esser's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Esser accept?
Health plans from Anthem Blue Cross and Blue Shield, Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana and Providence Health Plan list John Esser 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 Esser was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Dr. John Erick Esser, OD · NPI 1790855062
Optometrist provider in Fullerton, California. Individual provider, active in the CMS NPPES registry since November 8, 2006.
## Identity
- **NPI:** 1790855062 (Entity type: Individual)
- **Enumerated:** November 8, 2006
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 11350T (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 301 W BASTANCHURY RD, SUITE 10, Fullerton, CA 92835
- **Phone:** (714) 879-7372 · **Fax:** (714) 879-4304
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): John D. Zdral, M.D., Inc. (NPI 1013186352, Fullerton, CA); Southern California Permanente Medical Group (NPI 1396287082, Chino Hills, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2000
## Record status
- **NPPES last updated:** August 7, 2026
- **Other identifiers:** Other 11350T (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1790855062) · Data from the CMS NPPES public registry.