William Fazzalaro, PA-C
Surgical Physician Assistant · Laguna Hills, CA
William Fazzalaro, PA-C is a surgical physician assistant with a practice address in Laguna Hills, California, and NPI 1912065228, issued on Dec 6, 2006. Check the license (California PA16754, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Fazzalaro
- Credential
- PA-C
- Primary taxonomy
- Surgical Physician Assistant 363AS0400X
- License number
- PA16754 CA
Self-reported in NPPES; status is on the state search - Practice location
- 24411 Health Center Dr Ste 680, Laguna Hills, CA 92653
- Phone
- (949) 268-4568
- Enumerated
- Dec 6, 2006
- Record last updated
- Feb 26, 2025
- Fax
- (949) 455-2795
- Medicare enrollment
- Enrolled (PECOS I20110718000383); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest surgical physician assistant records → All 1,075 in California → Look up another NPI →
Also registered at 24411 Health Center Dr Ste 680
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Colin Joyo, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1124186754
- Tara Krishnasastry, P.A.Physician Assistant1639313745
- Scott Lee, M.D.Gastroenterology Physician1063703890
- Timothy Lee, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1881988962
- Asad Shah, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1477710440
- Benjamin Weinberg, MDGastroenterology Physician1598826612
Verify William Fazzalaro in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA16754Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average surgical physician assistant in 2024
128 Medicare Part D claims for 55 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Potassium Chloride13 claims
- Furosemide11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 84.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $438.38
5 payments; by number, the most common kind was food and beverage; the largest payer was Atricure, Inc. The 7,578 providers of this specialty with any payment received $703.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Memorialcare Medical FoundationLaguna Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Fazzalaro among 1,075 surgical physician assistant records in California
William Fazzalaro, PA-C is one of 1,075 surgical physician assistant records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 74% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1999 · median 2012 among the 649 with a school on file
- Record last updated2025 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgical Physician Assistant providers in California
There are 1,075 surgical physician assistant records in California.
All 1,075 in California → Every provider in Laguna Hills → Surgical Physician Assistant nationwide →
The 8 surgical physician assistant records with the nearest ZIP codes
- Robbin Gonzales, PA-CLaguna Hills, CA 926531033481809
- Darin Johnson, PA-CLaguna Hills, CA 926531235295254
- Ryley Rosenthal, PA-CLaguna Hills, CA 926531578219762
- Chiara Rundle, PA-CLaguna Hills, CA 926531760012397
- Kareem Sharaf, PALaguna Hills, CA 926531457839649
- Richard Vela, PA-CLaguna Hills, CA 926531558028373
- Shien-Lin Saber, PA-CLaguna Beach, CA 926511861566689
- Jung Sung, PALaguna Beach, CA 926511205865573
Common questions
What is William Fazzalaro, PA-C's NPI number?
William Fazzalaro, PA-C's National Provider Identifier (NPI) is 1912065228, issued on Dec 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Fazzalaro, PA-C located?
The NPPES record lists a practice address at 24411 Health Center Dr Ste 680, Laguna Hills, CA, 92653. Phone: (949) 268-4568. Providers update this record themselves, so call before visiting.
How can I verify William Fazzalaro, PA-C's license?
NPPES lists California license number PA16754, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does William Fazzalaro, PA-C prescribe under Medicare Part D?
In 2024, William Fazzalaro, PA-C had 128 Medicare Part D claims for 55 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions only.
What is William Fazzalaro, PA-C's MIPS final score?
The 2023 MIPS final score is 84.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.