NPPES file of Aug 9, 2026

Christina Ka-Yee Tse Kopatz, MD

Surgery Physician · Orange, CA

Christina Ka-Yee Tse Kopatz, MD is a surgery physician with a practice address in Orange, California, and NPI 1396204285, issued on Mar 19, 2019. Check the license (California A177481, 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
1396204285
Name
Christina Ka-Yee Tse Kopatz
Credential
MD
Primary taxonomy
Surgery Physician 208600000X
License number
A177481 CA
Self-reported in NPPES; status is on the state search
Practice location
333 City Blvd W Ste 1600, Orange, CA 92868
Phone
(714) 509-2377
Enumerated
Mar 19, 2019
Record last updated
Oct 25, 2024
Medicare enrollment
Enrolled (PECOS I20241028003190); accepts Medicare assignment
Medical or professional school
University Of California, Irvine, California College Of Medicine, 2019
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 333 City Blvd W Ste 1600

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

  1. Sayuri Brady, NPAcute Care Nurse Practitioner1992039572
  2. Thanh-Lan Bui, MDStudent in an Organized Health Care Education/Training Program1174264162
  3. April Carlson, MDStudent in an Organized Health Care Education/Training Program1982345534
  4. Michael De Virgilio, MDStudent in an Organized Health Care Education/Training Program1841933256
  5. Reza Fazl Alizadeh, MDGeneral Practice Physician1336643550
  6. Katie GalvinSurgery Physician1700381365

Verify Christina Ka-Yee Tse Kopatz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A177481
    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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52% fewer Medicare Part D claims than the average surgery physician in 2024

71 Medicare Part D claims for 41 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 23 claims were for opioids.

  1. Christina Kopatz71
  2. Specialty average147

Most prescribed

  1. Tramadol Hcl11 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: $28.00

1 payment: food and beverage; the largest payer was Intuitive Surgical, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christina Kopatz$28.00
  2. Specialty average$3,513.80

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

  1. Southern California Permanente Medical GroupBellflower, CA

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

Christina Ka-Yee Tse Kopatz among 3,118 surgery physician records in California

Christina Ka-Yee Tse Kopatz, MD is one of 3,118 surgery physician 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 2019, is newer than 91% of them.

  • NPI issued2019 · 91% of these records are older, 6% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2019 · median 2003 among the 1,901 with a school on file
  • Record last updated2024 · 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 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgery Physician providers in California

There are 3,118 surgery physician records in California.

The 8 surgery physician records with the nearest ZIP codes

  1. Jeffrey Chao, MDOrange, CA 928681164515995
  2. Kim Charney, M.D.Orange, CA 928681699790899
  3. Hisham El-Bayar, M.D., F.A.C.S.Orange, CA 928681659376622
  4. Sami Hamamji, M.D.Orange, CA 928681457425282
  5. Jay Harness, M.D.Orange, CA 928681477549426
  6. David K Imagawa, MDOrange, CA 928681467532630
  7. Rajesh Khanijou, M.D.Orange, CA 928681548239098
  8. Eric Kuncir, M.D.Orange, CA 928681053382085

Common questions

What is Christina Ka-Yee Tse Kopatz, MD's NPI number?

Christina Ka-Yee Tse Kopatz, MD's National Provider Identifier (NPI) is 1396204285, issued on Mar 19, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Christina Ka-Yee Tse Kopatz, MD located?

The NPPES record lists a practice address at 333 City Blvd W Ste 1600, Orange, CA, 92868. Phone: (714) 509-2377. Providers update this record themselves, so call before visiting.

How can I verify Christina Ka-Yee Tse Kopatz, MD's license?

NPPES lists California license number A177481, 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 Christina Ka-Yee Tse Kopatz, MD prescribe under Medicare Part D?

In 2024, Christina Ka-Yee Tse Kopatz, MD had 71 Medicare Part D claims for 41 beneficiaries; the average among surgery physician prescribers was 147. 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.