NPPES file of Aug 9, 2026

Chin-Yu Jean Lo, MD

Emergency Medicine Physician · Lancaster, CA

Chin-Yu Jean Lo, MD is an emergency medicine physician with a practice address in Lancaster, California, and NPI 1487889341, issued on May 21, 2009. Check the license (California A106147, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1487889341
Name
Chin-Yu Jean Lo
Credential
MD
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
A106147 CA
Self-reported in NPPES; status is on the state search
Practice location
43830 10TH St W, Lancaster, CA 93534
Phone
(661) 940-1421
Enumerated
May 21, 2009
Record last updated
Aug 24, 2010 (not updated in 16 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20091106000326); accepts Medicare assignment
Medical or professional school
University Of Iowa, Rj & L Carver College Of Medicine, 2005
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 43830 10TH St W

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

  1. Oluwadamilola AderibigbeNurse Practitioner1063133387
  2. Michael Burr, M.D.Anesthesiology Physician1124053939
  3. Gustavo Casas, DPTPhysical Therapist1033698808
  4. Ilder Cervantes SanchezNurse's Aide1285459727
  5. Yong Chung, M,D,Anesthesiology Physician1881625135
  6. Mary Garcia-Casas, PTPhysical Therapist1700365574

Verify Chin-Yu Jean Lo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A106147
    Check 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
Open 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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61% fewer Medicare Part D claims than the average emergency medicine physician in 2024

88 Medicare Part D claims for 69 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Chin-Yu Lo88
  2. Specialty average226

Most prescribed

  1. Cephalexin19 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.

  1. Qualityout of 100 · 30% of the final score71.8
  2. Costout of 100 · 30%64.5
  3. Promoting interoperabilityout of 100 · 25%82.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Faculty Physicians And Surgeons OF LlusmLoma Linda, CA
  2. Gem Medical Group CorporationMonterey Park, CA

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

Chin-Yu Jean Lo among 7,751 emergency medicine physician records in California

Chin-Yu Jean Lo, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% 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 54% of them.

  • NPI issued2009 · 54% of these records are older, 42% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2005 · median 2011 among the 4,560 with a school on file
  • Record last updated2010 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Frederic Auerbach, MDLancaster, CA 935341023074713
  2. Mark Brown, MDLancaster, CA 935341336105675
  3. Frank Detrana, MDLancaster, CA 935341043275407
  4. Travis Deuson, MDLancaster, CA 935341598720963
  5. Diane Kehrli, NPLancaster, CA 935341174581532
  6. Thomas Lee, MDLancaster, CA 935341194781898
  7. Michael Leidner, MDLancaster, CA 935341538124987
  8. Andrew Lesser, M.D.Lancaster, CA 935341952326381

Common questions

What is Chin-Yu Jean Lo, MD's NPI number?

Chin-Yu Jean Lo, MD's National Provider Identifier (NPI) is 1487889341, issued on May 21, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Chin-Yu Jean Lo, MD located?

The NPPES record lists a practice address at 43830 10TH St W, Lancaster, CA, 93534. Phone: (661) 940-1421. Providers update this record themselves, so call before visiting.

How can I verify Chin-Yu Jean Lo, MD's license?

NPPES lists California license number A106147, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Chin-Yu Jean Lo, MD prescribe under Medicare Part D?

In 2024, Chin-Yu Jean Lo, MD had 88 Medicare Part D claims for 69 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Chin-Yu Jean Lo, MD'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.