DR. WILLIAM D MOSIER MD
NPI 1063553378
Ophthalmology in Fullerton, CA
About Dr. William D Mosier Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM D MOSIER MD (NPI 1063553378) is an individual ophthalmology provider in Fullerton, California, licensed in California (A41428) and active in the NPI registry since February 2007. He is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (1983).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. William D Mosier 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.
Areas of Expertise CMS Part B claims 13
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.
Reported Quality Measures
Other Providers at the Same Location NPPES 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 William Mosier's NPI number?
The NPI number for William Mosier is 1063553378. It was assigned to this individual provider in the NPPES registry on February 9, 2007.
Where is William Mosier located?
William Mosier practices at 265 Laguna Rd, Fullerton, CA 92835. The listed phone number is (714) 871-2570.
What is William Mosier's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is William Mosier enrolled in Medicare?
Yes. William Mosier 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.
What insurance does William Mosier accept?
Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Louisiana, Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma and Blue Cross and Blue Shield of Texas and 1 other insurer list William Mosier 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 William Mosier was last updated on April 11, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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. William D Mosier, MD · NPI 1063553378
Ophthalmology physician in Fullerton, California. Individual provider, active in the CMS NPPES registry since February 9, 2007.
## Identity
- **NPI:** 1063553378 (Entity type: Individual)
- **Enumerated:** February 9, 2007
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** A41428 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 265 LAGUNA RD, Fullerton, CA 92835-2515
- **Phone:** (714) 871-2570 · **Fax:** (714) 441-2020
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** University Of California, Irvine, California College Of Medicine, class of 1983
## Record status
- **NPPES last updated:** April 11, 2014
- **Other identifiers:** Medicaid 00A414280 (CA); Medicare PIN AY754 (CA); Medicare PIN A41428 (CA); and 2 more
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Source: [NPI Profile](https://npiprofile.com/npi/1063553378) · Data from the CMS NPPES public registry.