Ashley Marie Masih, RD, PA-C
Physician Assistant · Loma Linda, CA
Ashley Marie Masih, RD, PA-C is a physician assistant with a practice address in Loma Linda, California, and NPI 1093332322, issued on Jul 2, 2020. Check the license (California PA58834, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ashley Marie Masih
- Credential
- RD, PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA58834 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11234 Anderson St # MC-1516, Loma Linda, CA 92354
- Phone
- (909) 558-4905
- Enumerated
- Jul 2, 2020
- Record last updated
- May 17, 2024
- Medicare enrollment
- Enrolled (PECOS I20210318000515); 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 →
Also registered at 11234 Anderson St # MC-1516
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lakshmi GanesanNephrology Physician1821356288
Verify Ashley Marie Masih in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA58834Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average physician assistant in 2024
604 Medicare Part D claims for 141 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.
Most prescribed
- Linzess75 claims
- Omeprazole51 claims
- Famotidine48 claims
- Lactulose41 claims
- Ursodiol27 claims
- Pantoprazole Sodium24 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): 85.2 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: $379.01
10 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 64,719 providers of this specialty with any payment received $841.65 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
- Faculty Physicians And Surgeons OF LlusmLoma Linda, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ashley Marie Masih among 14,451 physician assistant records in California
Ashley Marie Masih, RD, 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 2020, is newer than 62% of them.
- NPI issued2020 · 62% of these records are older, 33% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2020 · median 2018 among the 7,214 with a school on file
- Record last updated2024 · 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).
100 physician assistant records list a practice address in Loma Linda
They are 100 of the 4,863 NPPES records with a practice address in Loma Linda, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Loma Linda → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Dawn Banks, P.A.Loma Linda, CA 923541699705574
- Zachary Cash, P.A.Loma Linda, CA 923541275717316
- Justin Cottrell, PA-CLoma Linda, CA 923541316051402
- Gerald Glavaz, P.A.Loma Linda, CA 923541235182593
- Joshua Gysbers, PA-CLoma Linda, CA 923541083896005
- Rian Nina Jaffer, PHYSICIAN ASSISTANTLoma Linda, CA 923541841407798
- Louis Jaramillo, P.A.Loma Linda, CA 923541114044492
- Wen Long, P.A.Loma Linda, CA 923541225117096
Common questions
What is Ashley Marie Masih, RD, PA-C's NPI number?
Ashley Marie Masih, RD, PA-C's National Provider Identifier (NPI) is 1093332322, issued on Jul 2, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Ashley Marie Masih, RD, PA-C located?
The NPPES record lists a practice address at 11234 Anderson St # MC-1516, Loma Linda, CA, 92354. Phone: (909) 558-4905. Providers update this record themselves, so call before visiting.
How can I verify Ashley Marie Masih, RD, PA-C's license?
NPPES lists California license number PA58834, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ashley Marie Masih, RD, PA-C prescribe under Medicare Part D?
In 2024, Ashley Marie Masih, RD, PA-C had 604 Medicare Part D claims for 141 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Ashley Marie Masih, RD, PA-C's MIPS final score?
The 2023 MIPS final score is 85.2 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.