NPPES file of Aug 9, 2026

Lai Yi Koe, PA-C

Physician Assistant · El Monte, CA

Lai Yi Koe, PA-C is a physician assistant with a practice address in El Monte, California, and NPI 1811223555, issued on Oct 31, 2009. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811223555
Name
Lai Yi Koe
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
013561-1 NY
Self-reported in NPPES; status is on the state search
Practice location
3401 Aero Jet Ave, El Monte, CA 91731
Phone
(626) 286-8700
Enumerated
Oct 31, 2009
Record last updated
Jun 3, 2024
Fax
(626) 286-8650
Medicare enrollment
Enrolled (PECOS I20240927002226); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3401 Aero Jet Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Yu-Nien Agustin, LCSWClinical Social Worker1265374391
  2. Hui Shi Serena LohPsychiatric/Mental Health Nurse Practitioner1396215786
  3. Ariana LozadaStudent in an Organized Health Care Education/Training Program1871226647
  4. Mengying LuoFamily Nurse Practitioner1295615508
  5. Deena Pham, RDHDental Hygienist1891550448
  6. Long Tam, PAPhysician Assistant1225741382

Verify Lai Yi Koe in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2% more Medicare Part D claims than the average physician assistant in 2024

850 Medicare Part D claims for 131 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Lai Yi Koe850
  2. Specialty average830

Most prescribed

  1. Atorvastatin Calcium112 claims
  2. Losartan Potassium67 claims
  3. Amlodipine Besylate60 claims
  4. Alendronate Sodium42 claims
  5. Jardiance24 claims
  6. Losartan-Hydrochlorothiazide23 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.

Bills Medicare through one group practice

  1. Herald Christian Health CenterEl Monte, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Lai Yi Koe among 14,451 physician assistant records in California

Lai Yi Koe, 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 2009, is newer than 25% of them.

  • NPI issued2009 · 25% of these records are older, 73% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2009 · 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).

27 physician assistant records list a practice address in El Monte

They are 27 of the 1,528 NPPES records with a practice address in El Monte, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Jennifer CrotteauEl Monte, CA 917311164997839
  2. Edith Elenes Higuera, PACEl Monte, CA 917311558782029
  3. Angelica Maldonado, MPAS, PA-CEl Monte, CA 917311992030084
  4. Monifa Martin-Roberts, PAEl Monte, CA 917311326056466
  5. Phuong Nguyen, PAEl Monte, CA 917311205629052
  6. Brenda Sahagun, PA-CEl Monte, CA 917311427428564
  7. Brandon ScheyEl Monte, CA 917311518636562
  8. Asia SorianoEl Monte, CA 917311326762410

Common questions

What is Lai Yi Koe, PA-C's NPI number?

Lai Yi Koe, PA-C's National Provider Identifier (NPI) is 1811223555, issued on Oct 31, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Lai Yi Koe, PA-C located?

The NPPES record lists a practice address at 3401 Aero Jet Ave, El Monte, CA, 91731. Phone: (626) 286-8700. Providers update this record themselves, so call before visiting.

How can I verify Lai Yi Koe, PA-C's license?

Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Lai Yi Koe, PA-C prescribe under Medicare Part D?

In 2024, Lai Yi Koe, PA-C had 850 Medicare Part D claims for 131 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.