Amy Diem Lai
Physician Assistant · Camarillo, CA
Amy Diem Lai is a physician assistant with a practice address in Camarillo, California, and NPI 1750958161, issued on Jun 6, 2021. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Amy Diem Lai
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 4005 Mission Oaks Blvd Ste A, Camarillo, CA 93012
- Phone
- (805) 484-7921
- Enumerated
- Jun 6, 2021
- Record last updated
- Jun 10, 2024
- Fax
- (805) 983-4186
- Medicare enrollment
- Enrolled (PECOS I20250227003796); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 4005 Mission Oaks Blvd Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Fennewald, APRNAdult Health Nurse Practitioner1376856880
Verify Amy Diem Lai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average physician assistant in 2024
60 Medicare Part D claims for 21 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of 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): 84 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: $291.34
17 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
- Alaska Native Tribal Health ConsortiumAnchorage, AK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Amy Diem Lai among 14,451 physician assistant records in California
Amy Diem Lai 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 2021, is newer than 67% of them.
- NPI issued2021 · 67% of these records are older, 27% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2021 · 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).
Physician Assistant providers in California
There are 14,451 physician assistant records in California.
All 14,451 in California → Every provider in Camarillo → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Robert Anderson, PASanta Rosa Valley, CA 930121215140751
- Alexander Figueroa Rodriguez, PA-CSanta Rosa Valley, CA 930121669346763
- Jessica Fogeltanz, P.A.Camarillo, CA 930121477942647
- Tayler AlbaneseCamarillo, CA 930101922865963
- Kelly Calkins, PACamarillo, CA 930101689823718
- Dianna Davis, PA-CCamarillo, CA 930101144730243
- Ray Jason Fajardo, MS, PA-CCamarillo, CA 930101255668570
- Megan Grossman, PACamarillo, CA 930101376027235
Common questions
What is Amy Diem Lai's NPI number?
Amy Diem Lai's National Provider Identifier (NPI) is 1750958161, issued on Jun 6, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Amy Diem Lai located?
The NPPES record lists a practice address at 4005 Mission Oaks Blvd Ste A, Camarillo, CA, 93012. Phone: (805) 484-7921. Providers update this record themselves, so call before visiting.
How can I verify Amy Diem Lai's license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Amy Diem Lai prescribe under Medicare Part D?
In 2024, Amy Diem Lai had 60 Medicare Part D claims for 21 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Amy Diem Lai's MIPS final score?
The 2023 MIPS final score is 84 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.