NPPES file of Aug 9, 2026

Shiun T. Ker, M.D.

Surgery Physician · Monterey Park, CA

Shiun T. Ker, M.D. is a surgery physician with a practice address in Monterey Park, California, and NPI 1669554887, issued on Oct 19, 2006. Check the license (California A43001, 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
1669554887
Name
Shiun T. Ker
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License number
A43001 CA
Self-reported in NPPES; status is on the state search
Practice location
600 N Garfield Ave, Monterey Park, CA 91754
Phone
(626) 571-8271
Enumerated
Oct 19, 2006
Record last updated
Sep 11, 2025
Fax
(626) 571-8106
Medicaid ID
6244319 CA
Medicare enrollment
Enrolled (PECOS I20101217000496); 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 600 N Garfield Ave

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

  1. Huo Chen, M.D.Specialist1164454286
  2. Na Chou, NP-CFamily Nurse Practitioner1114465176
  3. Kwok Leung Chung, M.D.Gastroenterology Physician1760490627
  4. Tom Giang, M.D.Internal Medicine Physician1669668901
  5. Cali Ho, MS, OTR/LOccupational Therapist1609027770
  6. Chun Hsu, M.D.Gastroenterology Physician1902831894

Verify Shiun T. Ker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A43001
    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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2.0 times the Medicare Part D claims of the average surgery physician in 2024

296 Medicare Part D claims for 168 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D.

  1. Shiun Ker296
  2. Specialty average147

Most prescribed

  1. Famotidine52 claims
  2. Lidocaine42 claims
  3. Peg 3350-Electrolyte41 claims
  4. Gavilyte-G31 claims
  5. Gavilyte-C27 claims
  6. Dicyclomine Hcl17 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: $186.95

3 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, 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. Shiun Ker$186.95
  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.

Shiun T. Ker among 3,118 surgery physician records in California

Shiun T. Ker, M.D. 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 55% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1974 · median 2003 among the 1,901 with a school on file
  • Record last updated2025 · 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. Alfonso Barragan, MD FACSMonterey Park, CA 917541174628325
  2. Danny Chung, M.D.Monterey Park, CA 917541427089002
  3. Nani Gelvezon, D.O.Monterey Park, CA 917541134427594
  4. Sean Kim, M.D.Monterey Park, CA 917541457630055
  5. Dustin Lee, D.O.Monterey Park, CA 917541396907432
  6. Kenneth Sim, MDMonterey Park, CA 917541831109578
  7. Quang Vo, M.D.Monterey Park, CA 917541821107749
  8. Joanna Lim, M.D.Ontario, CA 917611851612675

Common questions

What is Shiun T. Ker, M.D.'s NPI number?

Shiun T. Ker, M.D.'s National Provider Identifier (NPI) is 1669554887, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Shiun T. Ker, M.D. located?

The NPPES record lists a practice address at 600 N Garfield Ave, Monterey Park, CA, 91754. Phone: (626) 571-8271. Providers update this record themselves, so call before visiting.

How can I verify Shiun T. Ker, M.D.'s license?

NPPES lists California license number A43001, 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 Shiun T. Ker, M.D. prescribe under Medicare Part D?

In 2024, Shiun T. Ker, M.D. had 296 Medicare Part D claims for 168 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.