Olivia Marie Marshall, PA
Physician Assistant · Colton, CA
Olivia Marie Marshall, PA is a physician assistant with a practice address in Colton, California, and NPI 1639522766, issued on Jul 13, 2016. Check the license (California 55316, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Olivia Marie Marshall
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License numbers
- 55316 CA
6570 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 900 E Washington St Ste 200, Colton, CA 92324
- Phone
- (909) 882-5867
- Enumerated
- Jul 13, 2016
- Record last updated
- Apr 22, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (909) 503-1913
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 900 E Washington St Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Eric Lewis, PTPhysical Therapist1861206617
Verify Olivia Marie Marshall in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 55316Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average physician assistant in 2024
99 Medicare Part D claims for 39 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 65% of claims.
Most prescribed
- Ozempic47 claims
- Mounjaro17 claims
- Ondansetron Odt14 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.
Olivia Marie Marshall among 14,451 physician assistant records in California
Olivia Marie Marshall, 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 2016, is newer than 44% of them.
- NPI issued2016 · 44% of these records are older, 53% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2019 · 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).
162 physician assistant records list a practice address in Colton
They are 162 of the 2,459 NPPES records with a practice address in Colton, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Colton → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Christine Bernier, P.A-CColton, CA 923241366482259
- Melissa Cornett, P.A-CColton, CA 923241154361905
- Maximillian Cruz, P.A-CColton, CA 923241538102751
- Joseph Florin, P.A-CColton, CA 923241427073162
- Lawrence Gates, P.A-CColton, CA 923241023059318
- Kristine Griffith, P.A-CColton, CA 923241174566707
- Anna Marie Lubatti, P.A-CColton, CA 923241598708661
- Thomas Manning, P.A-CColton, CA 923241538102009
Common questions
What is Olivia Marie Marshall, PA's NPI number?
Olivia Marie Marshall, PA's National Provider Identifier (NPI) is 1639522766, issued on Jul 13, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Olivia Marie Marshall, PA located?
The NPPES record lists a practice address at 900 E Washington St Ste 200, Colton, CA, 92324. Phone: (909) 882-5867. Providers update this record themselves, so call before visiting.
How can I verify Olivia Marie Marshall, PA's license?
NPPES lists California license number 55316, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Olivia Marie Marshall, PA prescribe under Medicare Part D?
In 2024, Olivia Marie Marshall, PA had 99 Medicare Part D claims for 39 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
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.