NPPES file of Aug 9, 2026

Byung-Gook Park, M.D.

Family Medicine Physician · San Jose, CA

Byung-Gook Park, M.D. is a family medicine physician with a practice address in San Jose, California, and NPI 1801996962, issued on Sep 25, 2006. Check the license (California A88228, 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
1801996962
Name
Byung-Gook Park
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A88228 CA
Self-reported in NPPES; status is on the state search
Practice location
100 Oconnor Dr Ste 11, San Jose, CA 95128
Phone
(408) 885-0807
Enumerated
Sep 25, 2006
Record last updated
Mar 31, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(831) 425-3878
Medicaid ID
00A882280 CA
Medicare enrollment
Enrolled (PECOS I20180719003247); 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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Verify Byung-Gook Park in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A88228
    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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74% fewer Medicare Part D claims than the average family medicine physician in 2024

932 Medicare Part D claims for 114 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 65 claims were for opioids.

  1. Byung-Gook Park932
  2. Specialty average3,544

Most prescribed

  1. Hydrocodone-Acetaminophen42 claims
  2. Levothyroxine Sodium36 claims
  3. Mirtazapine36 claims
  4. Atorvastatin Calcium31 claims
  5. Metoprolol Tartrate28 claims
  6. Pregabalin27 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 MIPS final score for 2023 (Medicare payment program): 13.2 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score0.0
  2. Costout of 100 · 30%44.0
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Industry payments in 2024: $123.51

1 payment: food and beverage; the largest payer was Lexicon Pharmaceuticals, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Byung-Gook Park$123.51
  2. Specialty average$902.55

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. County OF Santa ClaraSan Jose, CA

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

Byung-Gook Park among 17,133 family medicine physician records in California

Byung-Gook Park, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1978 · median 2005 among the 10,652 with a school on file
  • Record last updated2014 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

265 family medicine physician records list a practice address in San Jose

They are 265 of the 20,925 NPPES records with a practice address in San Jose, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Madhavi Chenumalla, MDSan Jose, CA 951281225122849
  2. Michael Henehan, DOSan Jose, CA 951281053497685
  3. Suneetha Devi Jagarlamudi, M.D.San Jose, CA 951281205862588
  4. Dhanu Kapoor, M.DSan Jose, CA 951281942212758
  5. George Kent, MDSan Jose, CA 951281861456246
  6. Heideh Khalilnejadi, MDSan Jose, CA 951281528022852
  7. Arnold Leff, MDSan Jose, CA 951281326004730
  8. Surekha Manohar, MDSan Jose, CA 951281235195900

Common questions

What is Byung-Gook Park, M.D.'s NPI number?

Byung-Gook Park, M.D.'s National Provider Identifier (NPI) is 1801996962, issued on Sep 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Byung-Gook Park, M.D. located?

The NPPES record lists a practice address at 100 Oconnor Dr Ste 11, San Jose, CA, 95128. Phone: (408) 885-0807. Providers update this record themselves, so call before visiting.

How can I verify Byung-Gook Park, M.D.'s license?

NPPES lists California license number A88228, 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 Byung-Gook Park, M.D. prescribe under Medicare Part D?

In 2024, Byung-Gook Park, M.D. had 932 Medicare Part D claims for 114 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Byung-Gook Park, M.D.'s MIPS final score?

The 2023 MIPS final score is 13.2 of 100. 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.