NPPES file of Aug 9, 2026

Derrick Makoto Hong, M.D

Hospitalist Physician · Irvine, CA

Derrick Makoto Hong, M.D is a hospitalist physician with a practice address in Irvine, California, and NPI 1124040696, issued on Jul 24, 2006. Check the license (California A78389, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124040696
Name
Derrick Makoto Hong
Credential
M.D
Primary taxonomy
Hospitalist Physician 208M00000X
License number
A78389 CA
Self-reported in NPPES; status is on the state search
Practice location
16200 Sand Canyon Ave, Irvine, CA 92618
Phone
(949) 610-7245
Enumerated
Jul 24, 2006
Record last updated
Jul 21, 2022
Fax
(657) 241-7720
Medicare enrollment
Enrolled (PECOS I20040517000806); accepts Medicare assignment
Medical or professional school
University Of California, San Diego School Of Medicine, 2000
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 16200 Sand Canyon Ave

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

  1. Christine AyalaNurse Practitioner1831879154
  2. Nicholas Bove, MDEmergency Medicine Physician1255837837
  3. David Calica, M.D.Anesthesiology Physician1780787606
  4. Danielle CarlsonRegistered Nurse1710850409
  5. John Chien, M.D.Hospitalist Physician1790043651
  6. Michael Cho, M.D.Hospitalist Physician1184915001

Verify Derrick Makoto Hong in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A78389
    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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45% more Medicare Part D claims than the average hospitalist physician in 2024

758 Medicare Part D claims for 196 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 32 claims were for opioids.

  1. Derrick Hong758
  2. Specialty average521

Most prescribed

  1. Amlodipine Besylate28 claims
  2. Pantoprazole Sodium28 claims
  3. Carbidopa-Levodopa23 claims
  4. Atorvastatin Calcium22 claims
  5. Metoprolol Succinate22 claims
  6. Januvia21 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): 44 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 score41.1
  2. Costout of 100 · 30%56.3
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Pacific Hospitalist Associates A Medical CorporationIrvine, CA

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

Derrick Makoto Hong among 3,099 hospitalist physician records in California

Derrick Makoto Hong, M.D is one of 3,099 hospitalist physician records with a practice address in California. 90% 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 2% of them.

  • NPI issued2006 · 2% of these records are older, 73% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2000 · median 2010 among the 2,505 with a school on file
  • Record last updated2022 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in California

There are 3,099 hospitalist physician records in California.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Ali Ahoui, MDIrvine, CA 926181093964769
  2. Robert Cho, M.D.Irvine, CA 926181760578512
  3. Scott Derkum, MDIrvine, CA 926181588660849
  4. John Dieckhoff, M.D.Irvine, CA 926181700068152
  5. Veejay Geria, M.D.Irvine, CA 926181821193467
  6. Nam Kim, MDIrvine, CA 926181861572513
  7. Ewa Kontny, M.D.Irvine, CA 926181598916587
  8. Meenu Kwatra, MDIrvine, CA 926181265510028

Common questions

What is Derrick Makoto Hong, M.D's NPI number?

Derrick Makoto Hong, M.D's National Provider Identifier (NPI) is 1124040696, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Derrick Makoto Hong, M.D located?

The NPPES record lists a practice address at 16200 Sand Canyon Ave, Irvine, CA, 92618. Phone: (949) 610-7245. Providers update this record themselves, so call before visiting.

How can I verify Derrick Makoto Hong, M.D's license?

NPPES lists California license number A78389, 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 Derrick Makoto Hong, M.D prescribe under Medicare Part D?

In 2024, Derrick Makoto Hong, M.D had 758 Medicare Part D claims for 196 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.

What is Derrick Makoto Hong, M.D's MIPS final score?

The 2023 MIPS final score is 44 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.