Demetrio Ortiz Quismorio, PA C
Physician Assistant · Corona, CA
Demetrio Ortiz Quismorio, PA C is a physician assistant with a practice address in Corona, California, and NPI 1760493191, issued on Aug 10, 2006. Check the license (California PA14870, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Demetrio Ortiz Quismorio
- Credential
- PA C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA14870 CA
Self-reported in NPPES; status is on the state search - Practice location
- 341 Magnolia Ave, Corona, CA 92879
- Phone
- (951) 735-6060
- Enumerated
- Aug 10, 2006
- Record last updated
- May 9, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (951) 735-4510
- Medicaid ID
- 0PA148700 CA
- Medicare enrollment
- Enrolled (PECOS I20081204000278); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 341 Magnolia Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ralph Gozun, DPTPhysical Therapist1508283664
- Michael HashemiPhysical Therapist1356772552
- Jamie Hess, N.P.Women's Health Nurse Practitioner1104196120
- Hillary Houseman, PA-CPhysician Assistant1952469371
- Neilvon LangasPhysical Therapist1174954366
Verify Demetrio Ortiz Quismorio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA14870Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
18% fewer Medicare Part D claims than the average physician assistant in 2024
677 Medicare Part D claims for 294 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 352 claims were for opioids.
Most prescribed
- Oxycodone-Acetaminophen164 claims
- Cephalexin160 claims
- Hydrocodone-Acetaminophen138 claims
- Ibuprofen45 claims
- Meloxicam38 claims
- Acetaminophen-Codeine30 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): 75 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 one group practice
- Corona Orthopaedic Associates Medical Group IncCorona, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Demetrio Ortiz Quismorio among 14,451 physician assistant records in California
Demetrio Ortiz Quismorio, PA C 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 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1998 · median 2018 among the 7,214 with a school on file
- Record last updated2011 · 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).
56 physician assistant records list a practice address in Corona
They are 56 of the 3,731 NPPES records with a practice address in Corona, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Corona → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Taviana Barajas, PA-CCorona, CA 928791710640180
- Lilia Bustamante, P.A.-CCorona, CA 928791578602744
- Kevin ChenCorona, CA 928791184269284
- Richard Dalessandro, MDCorona, CA 928791467470450
- Amy Heller, MPACorona, CA 928791366770927
- Steven Hinojos, PA-CCorona, CA 928791447532320
- Hillary Houseman, PA-CCorona, CA 928791952469371
- Sean JacksonCorona, CA 928791861059784
Common questions
What is Demetrio Ortiz Quismorio, PA C's NPI number?
Demetrio Ortiz Quismorio, PA C's National Provider Identifier (NPI) is 1760493191, issued on Aug 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Demetrio Ortiz Quismorio, PA C located?
The NPPES record lists a practice address at 341 Magnolia Ave, Corona, CA, 92879. Phone: (951) 735-6060. Providers update this record themselves, so call before visiting.
How can I verify Demetrio Ortiz Quismorio, PA C's license?
NPPES lists California license number PA14870, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Demetrio Ortiz Quismorio, PA C prescribe under Medicare Part D?
In 2024, Demetrio Ortiz Quismorio, PA C had 677 Medicare Part D claims for 294 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Demetrio Ortiz Quismorio, PA C's MIPS final score?
The 2023 MIPS final score is 75 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.