Shanna M. Marchesi, PA
Physician Assistant · Citrus Hts, CA
Shanna M. Marchesi, PA is a physician assistant with a practice address in Citrus Hts, California, and NPI 1275703662, issued on Mar 3, 2008. Check the license (California 22450, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Shanna M. Marchesi
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 22450 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5406 Sunrise Blvd, Citrus Hts, CA 95610
- Phone
- (800) 972-5547
- Enumerated
- Mar 3, 2008
- Record last updated
- May 20, 2026
- Medicare enrollment
- Enrolled (PECOS I20230421002211); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Verify Shanna M. Marchesi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 22450Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average physician assistant in 2024
94 Medicare Part D claims for 61 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass12 claims
- Azithromycin12 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): 94.6 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).
Bills Medicare through 2 group practices
- Sutter Bay Medical FoundationPalo Alto, CA
- Sutter Valley Medical FoundationWest Sacramento, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Shanna M. Marchesi among 14,451 physician assistant records in California
Shanna M. Marchesi, PA is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 22% of them.
- NPI issued2008 · 22% of these records are older, 75% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2004 · median 2018 among the 7,214 with a school on file
- Record last updated2026 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Physician Assistant providers in California
There are 14,451 physician assistant records in California.
The 8 physician assistant records with the nearest ZIP codes
- Lucia Albu, PACitrus Heights, CA 956101407323322
- Steven Blizzard, PACitrus Heights, CA 956101497814115
- Olena Hays, PACitrus Heights, CA 956101487831491
- Victoria McKinney-BrooksCitrus Heights, CA 956101154000537
- Monica Mendiola, PA-CCitrus Heights, CA 956101619598489
- Anna PetrikCitrus Heights, CA 956101417261165
- Iris Villanueva, DMSC, PA-CCitrus Heights, CA 956101750792149
- Da Xu, PA-CCitrus Heights, CA 956101366755381
Common questions
What is Shanna M. Marchesi, PA's NPI number?
Shanna M. Marchesi, PA's National Provider Identifier (NPI) is 1275703662, issued on Mar 3, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Shanna M. Marchesi, PA located?
The NPPES record lists a practice address at 5406 Sunrise Blvd, Citrus Hts, CA, 95610. Phone: (800) 972-5547. Providers update this record themselves, so call before visiting.
How can I verify Shanna M. Marchesi, PA's license?
NPPES lists California license number 22450, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Shanna M. Marchesi, PA prescribe under Medicare Part D?
In 2024, Shanna M. Marchesi, PA had 94 Medicare Part D claims for 61 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Shanna M. Marchesi, PA's MIPS final score?
The 2023 MIPS final score is 94.6 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.