NPPES file of Aug 9, 2026

Ya Zhou

Hospice and Palliative Medicine (Internal Medicine) Physician · Torrance, CA

Ya Zhou is a hospice and palliative medicine (internal medicine) physician with a practice address in Torrance, California, and NPI 1902366784, issued on Mar 20, 2019. Check the license (California A178320, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1902366784
Name
Ya Zhou
Primary taxonomy
Hospice and Palliative Medicine (Internal Medicine) Physician 207RH0002X
License number
A178320 CA
Self-reported in NPPES; status is on the state search
Practice location
5315 Torrance Blvd, Torrance, CA 90503
Phone
(800) 829-8660
Enumerated
Mar 20, 2019
Record last updated
Apr 26, 2024
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 5315 Torrance Blvd

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

  1. Sherry Ellaine Echano, NPNurse Practitioner1821619602
  2. Jungok HaPrimary Care Nurse Practitioner1104092667
  3. Brandi O'BrienPediatric Nurse Practitioner1386969731
  4. Jennifer Ryan, MSN, AGNPGerontology Nurse Practitioner1447806021

Verify Ya Zhou in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A178320
    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

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70% fewer Medicare Part D claims than the average hospice and palliative medicine (internal medicine) physician in 2024

221 Medicare Part D claims for 82 beneficiaries, against an average of 741 among the 1,607 providers of this specialty who prescribed in Part D.

  1. Ya Zhou221
  2. Specialty average741

Most prescribed

  1. Levothyroxine Sodium35 claims
  2. Tamsulosin Hcl13 claims
  3. Folic Acid12 claims
  4. Losartan Potassium12 claims
  5. Metoprolol Tartrate12 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.

Industry payments in 2024: $18.02

1 payment: food and beverage; the largest payer was Becton, Dickinson and Company. The 338 providers of this specialty with any payment received $547.94 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ya Zhou$18.02
  2. Specialty average$547.94

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

Ya Zhou among 260 hospice and palliative medicine (internal medicine) physician records in California

Ya Zhou is one of 260 hospice and palliative medicine (internal medicine) physician records with a practice address in California. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.

  • NPI issued2019 · 85% of these records are older, 12% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileNo · 74% of these records are
  • Record last updated2024 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0002X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospice and Palliative Medicine (Internal Medicine) Physician providers in California

There are 260 hospice and palliative medicine (internal medicine) physician records in California.

The 8 hospice and palliative medicine (internal medicine) physician records with the nearest ZIP codes

  1. Yuichi Yanami, M.D.Torrance, CA 905031265729339
  2. Neha Darrah, MDTorrance, CA 905021962721563
  3. Ujjwala Dheeriya, M.D.Torrance, CA 905051770508582
  4. Tiffany Hsu, M.D.Torrance, CA 905051740642248
  5. Henry Kaing, DOTorrance, CA 905051487186433
  6. Martina Meier, M.D.Torrance, CA 905051144547548
  7. Samuel Nam, M.D.Torrance, CA 905051396936951
  8. Joseph KwackSanta Monica, CA 904041053739029

Common questions

What is Ya Zhou's NPI number?

Ya Zhou's National Provider Identifier (NPI) is 1902366784, issued on Mar 20, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Ya Zhou located?

The NPPES record lists a practice address at 5315 Torrance Blvd, Torrance, CA, 90503. Phone: (800) 829-8660. Providers update this record themselves, so call before visiting.

How can I verify Ya Zhou's license?

NPPES lists California license number A178320, 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 Ya Zhou prescribe under Medicare Part D?

In 2024, Ya Zhou had 221 Medicare Part D claims for 82 beneficiaries; the average among hospice and palliative medicine (internal medicine) physician prescribers was 741. 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.