Lauren Ostrosky Diab, PA
Physician Assistant · Whittier, CA
Lauren Ostrosky Diab, PA is a physician assistant with a practice address in Whittier, California, and NPI 1093166472, issued on Jun 27, 2016. Check the license (California PA53858, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Lauren Ostrosky Diab
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA53858 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9080 Colima RD, Whittier, CA 90605
- Phone
- (562) 945-3561
- Enumerated
- Jun 27, 2016
- Record last updated
- Aug 10, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 9080 Colima RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Deming Chau, MDAnesthesiology Physician1750345864
- Uday Chauhan, MDInfectious Disease Physician1285213603
Verify Lauren Ostrosky Diab in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA53858Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average physician assistant in 2024
172 Medicare Part D claims for 105 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Ibuprofen30 claims
- Cephalexin21 claims
- Naproxen13 claims
- Tramadol Hcl13 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.
Lauren Ostrosky Diab among 14,451 physician assistant records in California
Lauren Ostrosky Diab, 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 updated2020 · 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).
89 physician assistant records list a practice address in Whittier
They are 89 of the 2,836 NPPES records with a practice address in Whittier, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Whittier → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kaitlyn Clark, PA-CWhittier, CA 906051518637180
- I. Jean Davis, PHD, DC, PAWhittier, CA 906051003915646
- Jessica LaWhittier, CA 906051750930129
- Melissa LopezWhittier, CA 906051386134542
- Sakshi Madan, PA-CWhittier, CA 906051518474816
- Travis Martois, P.A.Whittier, CA 906051750323648
- Connie Montes, PAC PHYSICIAN ASSISTWhittier, CA 906051265656854
- Lena QuangWhittier, CA 906051619595014
Common questions
What is Lauren Ostrosky Diab, PA's NPI number?
Lauren Ostrosky Diab, PA's National Provider Identifier (NPI) is 1093166472, issued on Jun 27, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Lauren Ostrosky Diab, PA located?
The NPPES record lists a practice address at 9080 Colima RD, Whittier, CA, 90605. Phone: (562) 945-3561. Providers update this record themselves, so call before visiting.
How can I verify Lauren Ostrosky Diab, PA's license?
NPPES lists California license number PA53858, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Lauren Ostrosky Diab, PA prescribe under Medicare Part D?
In 2024, Lauren Ostrosky Diab, PA had 172 Medicare Part D claims for 105 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.