NPPES file of Aug 9, 2026

Jahoon Koo, M.D.

Surgery Physician · Modesto, CA

Jahoon Koo, M.D. is a surgery physician with a practice address in Modesto, California, and NPI 1871912519, issued on Apr 9, 2014. Check the license (California A140169, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1871912519
Name
Jahoon Koo
Credential
M.D.
Primary taxonomy
Surgery Physician 208600000X
License number
A140169 CA
Self-reported in NPPES; status is on the state search
Practice location
1700 Coffee RD, Modesto, CA 95355
Phone
(209) 579-5628
Enumerated
Apr 9, 2014
Record last updated
Nov 11, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(209) 579-5637
Medicare enrollment
Enrolled (PECOS I20191212001464); accepts Medicare assignment
Medical or professional school
University Of Minnesota Medical School, 2014
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 1700 Coffee RD

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

  1. Zainab Abbasi, MBBSStudent in an Organized Health Care Education/Training Program1972442903
  2. Rahimot AkindeleStudent in an Organized Health Care Education/Training Program1790570422
  3. Sultana Akter, MDStudent in an Organized Health Care Education/Training Program1881534717
  4. Khalid Al Zubaidi, MDStudent in an Organized Health Care Education/Training Program1023957032
  5. Zahraa Ali AkbarStudent in an Organized Health Care Education/Training Program1124967815
  6. Rachel Ann Alikes, RNRegistered Nurse First Assistant1073441374

Verify Jahoon Koo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A140169
    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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Bills Medicare through 2 group practices

  1. Sutter Valley Medical FoundationJackson, CA
  2. Trauma Medical Group OF Roseville IncRoseville, CA

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

Jahoon Koo among 3,118 surgery physician records in California

Jahoon Koo, 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 2014, is newer than 78% of them.

  • NPI issued2014 · 78% of these records are older, 20% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2014 · median 2003 among the 1,901 with a school on file
  • Record last updated2019 · 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. Rodolfo Agbunag, MDModesto, CA 953551316995111
  2. Noran Barry, M.D.Modesto, CA 953551467763300
  3. James Brungardt, MDModesto, CA 953551386696805
  4. Timothy Davis, MDModesto, CA 953551114976594
  5. Shirley Rose Domingo, M.D.Modesto, CA 953551043331788
  6. Refugio Gonzalez, M.D.Modesto, CA 953551265668552
  7. Tomasz Gutowski, MDModesto, CA 953551710935127
  8. Andrew Huber, MDModesto, CA 953551316388325

Common questions

What is Jahoon Koo, M.D.'s NPI number?

Jahoon Koo, M.D.'s National Provider Identifier (NPI) is 1871912519, issued on Apr 9, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Jahoon Koo, M.D. located?

The NPPES record lists a practice address at 1700 Coffee RD, Modesto, CA, 95355. Phone: (209) 579-5628. Providers update this record themselves, so call before visiting.

How can I verify Jahoon Koo, M.D.'s license?

NPPES lists California license number A140169, 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.

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.