NPPES file of Aug 9, 2026

Erica Cheng Liu, PA-C

Physician Assistant · Santa Maria, CA

Erica Cheng Liu, PA-C is a physician assistant with a practice address in Santa Maria, California, and NPI 1043732670, issued on Jul 14, 2017. Check the license (California 54643, as entered in NPPES) 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043732670
Name
Erica Cheng Liu
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
54643 CA
Self-reported in NPPES; status is on the state search
Practice location
1400 E Church St, Santa Maria, CA 93454
Phone
(855) 980-3683
Enumerated
Jul 14, 2017
Record last updated
Jul 14, 2017 (not updated in 9 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1400 E Church St

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

  1. Elena Agafonova, M.D.Internal Medicine Physician1558757666
  2. Alyse Andrade, RN IBCLCLactation Consultant (Registered Nurse)1104647403
  3. Steven Andrews, PAPhysician Assistant1083352397
  4. Andrea ArthoferStudent in an Organized Health Care Education/Training Program1225772973
  5. Hannah Barrows, PA-CPhysician Assistant1528747128
  6. Nader Batal, DOFamily Medicine Physician1740923135

Verify Erica Cheng Liu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 54643
    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
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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56% fewer Medicare Part D claims than the average physician assistant in 2024

362 Medicare Part D claims for 241 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 38 claims were for opioids.

  1. Erica Liu362
  2. Specialty average830

Most prescribed

  1. Ondansetron Odt39 claims
  2. Cefdinir38 claims
  3. Hydrocodone-Acetaminophen22 claims
  4. Prednisone18 claims
  5. Cephalexin16 claims
  6. Potassium Chloride15 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): 94.6 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 score76.7
  2. Costout of 100 · 30%97.1
  3. Promoting interoperabilitynot scored (reweighted)
  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).

Industry payments in 2024: $41.35

2 payments; by number, the most common kind was food and beverage; the largest payer was Inari Medical, 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.

  1. Erica Liu$41.35
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Erica Cheng Liu among 14,451 physician assistant records in California

Erica Cheng Liu, 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 2017, is newer than 47% of them.

  • NPI issued2017 · 47% of these records are older, 48% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 50% of these records are
  • Record last updated2017 · 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).

150 physician assistant records list a practice address in Santa Maria

They are 150 of the 3,047 NPPES records with a practice address in Santa Maria, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Jenny Andrews, PASanta Maria, CA 934541407159429
  2. Joel Breck, PA, MPHSanta Maria, CA 934541194261099
  3. Ashley Bridges, PA-CSanta Maria, CA 934541780088328
  4. Tressa Esty, PA-CSanta Maria, CA 934541720282718
  5. Anne Hall, PASanta Maria, CA 934541821080060
  6. Nathan Hamblin, PASanta Maria, CA 934541891123550
  7. Kelly Piazza, PA-CSanta Maria, CA 934541043560915
  8. Delane Price, PA-CSanta Maria, CA 934541720025729

Common questions

What is Erica Cheng Liu, PA-C's NPI number?

Erica Cheng Liu, PA-C's National Provider Identifier (NPI) is 1043732670, issued on Jul 14, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Erica Cheng Liu, PA-C located?

The NPPES record lists a practice address at 1400 E Church St, Santa Maria, CA, 93454. Phone: (855) 980-3683. Providers update this record themselves, so call before visiting.

How can I verify Erica Cheng Liu, PA-C's license?

NPPES lists California license number 54643, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Erica Cheng Liu, PA-C prescribe under Medicare Part D?

In 2024, Erica Cheng Liu, PA-C had 362 Medicare Part D claims for 241 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Erica Cheng Liu, PA-C's MIPS final score?

The 2023 MIPS final score is 94.6 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.