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WILLIAM FAZZALARO PA-C
NPI 1912065228
Physician Assistant - Surgical in Laguna Hills, CA

Active since December 06, 2006PECOS EnrolledAccepts Medicare Assignment
84.41/100
CMS Quality Rating
24411 HEALTH CENTER DR STE 680, LAGUNA HILLS, CA 92653(949) 268-4568(949) 455-2795 Get Directions Write a Review

NPPES record last updated: February 26, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 26, 2025, Dec 14, 2018, Mar 29, 2016 (3 updates tracked since 2016).

About William Fazzalaro Pa-c NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM FAZZALARO PA-C (NPI 1912065228) is an individual surgical provider in Laguna Hills, California, licensed in California (PA16754) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1999).

NPPES Registry Identity

NPI1912065228
Entity TypeIndividualMale
Primary Taxonomy363AS0400X
Provider Legal NameWILLIAM FAZZALAROCredential: PA-C
Location Address24411 HEALTH CENTER DR STE 680Laguna Hills, CA 92653-3692
Mailing Address24411 Health Center Dr Ste 680Laguna Hills, CA 92653-3692 · (949) 268-4568 · Fax (949) 455-2795
Phone(949) 268-4568
Fax(949) 455-2795
Sole ProprietorNo
Medical School CMSOtherGraduated 1999
Enumeration DateDecember 6, 2006
Last NPPES UpdateFebruary 26, 20253 updates tracked since enumeration
NPPES CertifiedFebruary 26, 2025
✔ NPI 1912065228 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician Assistant · SurgicalPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363AS0400X
License✔ Licensed in CA · PA16754
24411 HEALTH CENTER DR STE 680, Laguna Hills, CA 92653
Open in Google Maps ↗

Other Identifiers 2

Other1750339479CA · Group Npi
OtherPA16754CA · License

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

William Fazzalaro Pa-c 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.

PECOS PAC ID8820266885
PECOS Enrollment IDI20110718000383
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
53 services37 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
32 services27 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
12 services12 patients
Coronary artery bypass using artery graft, 1 graft 33533
A coronary artery bypass with one artery graft is a surgical procedure to improve blood flow to your heart. An artery from another part of your body is used to bypass a blocked or narrowed coronary artery. This can help reduce chest pain and risk of heart attack.
11 services11 patients

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.

84.41/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality90.67
Promoting Interoperability100
Improvement Activities40
Cost57.36

Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SCOTT HYUNSOO LEE M.D.
Internal Medicine (Gastroenterology)
24411 HEALTH CENTER DR STE 680
LAGUNA HILLS, CA 92653
Orange County (657) 241-4280
COLIN I. JOYO M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
24411 HEALTH CENTER DR STE 680
LAGUNA HILLS, CA 92653
Orange County (949) 268-4568
DR. ASAD ALI SHAH M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
24411 HEALTH CENTER DR STE 680
LAGUNA HILLS, CA 92653
Orange County (949) 268-4568
DR. BENJAMIN MENASHEH WEINBERG MD
Internal Medicine (Gastroenterology)
24411 HEALTH CENTER DR STE 680
LAGUNA HILLS, CA 92653
Orange County (657) 241-4280
TARA KRISHNASASTRY P.A.
Physician Assistant
24411 HEALTH CENTER DR STE 680
LAGUNA HILLS, CA 92653
Orange County (949) 268-4568
DR. TIMOTHY MARK LEE M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
24411 HEALTH CENTER DR STE 680
LAGUNA HILLS, CA 92653
Orange County (949) 268-4568

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 Fazzalaro's NPI number?

The NPI number for William Fazzalaro is 1912065228. It was assigned to this individual provider in the NPPES registry on December 6, 2006.

Where is William Fazzalaro located?

William Fazzalaro practices at 24411 Health Center Dr Ste 680, Laguna Hills, CA 92653. The listed phone number is (949) 268-4568.

What is William Fazzalaro's specialty?

The primary specialty registered for this NPI is Physician Assistant, specializing in Surgical, with taxonomy code 363AS0400X.

Is William Fazzalaro enrolled in Medicare?

Yes. William Fazzalaro 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.

When was this NPI record last updated?

The NPPES record for William Fazzalaro was last updated on February 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.