NPPES file of Aug 9, 2026

Byong J. Pak, M.D.

Emergency Medicine Physician · Folsom, CA

Byong J. Pak, M.D. is an emergency medicine physician with a practice address in Folsom, California, and NPI 1932231909, issued on Mar 12, 2007. Check the license (California G35602, 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
1932231909
Name
Byong J. Pak
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
G35602 CA
Self-reported in NPPES; status is on the state search
Practice location
1650 Creekside Dr, Folsom, CA 95630
Phone
(916) 983-7470
Enumerated
Mar 12, 2007
Record last updated
Apr 8, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20070724000456); accepts Medicare assignment
Medical or professional school
Rutgers School Of Dental Medicine, 1976
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 1650 Creekside Dr

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

  1. Timothy Adams, M.D.Anesthesiology Physician1477569556
  2. Murali Adusumalli, M.D.Hospitalist Physician1952387953
  3. Jeffrey Anderson, M.D.Anesthesiology Physician1639185630
  4. Kathleen Baker, D.O.Emergency Medicine Physician1245442839
  5. Tessa Batchelor, LCSWClinical Social Worker1528848546
  6. Amber Bender, P.A.Physician Assistant1780947572

Verify Byong J. Pak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G35602
    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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1% fewer Medicare Part D claims than the average emergency medicine physician in 2024

223 Medicare Part D claims for 103 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. Byong Pak223
  2. Specialty average226

Most prescribed

  1. Azithromycin22 claims
  2. Sulfamethoxazole-Trimethoprim17 claims
  3. Alprazolam12 claims
  4. Prednisone12 claims
  5. Zolpidem Tartrate12 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.

Bills Medicare through one group practice

  1. American Specialty Physicians Group IncColusa, CA

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

Byong J. Pak among 7,751 emergency medicine physician records in California

Byong J. Pak, M.D. is one of 7,751 emergency 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 2007, is newer than 40% of them.

  • NPI issued2007 · 40% of these records are older, 50% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1976 · median 2011 among the 4,560 with a school on file
  • Record last updated2009 · 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 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in California

There are 7,751 emergency medicine physician records in California.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Kathleen Baker, D.O.Folsom, CA 956301245442839
  2. Stella Dao, MDFolsom, CA 956301831277508
  3. Kevin Donaghy, M.D.Folsom, CA 956301902014731
  4. Anthony Jackson, MDFolsom, CA 956301720024847
  5. Kendrick Johnson, M.D.Folsom, CA 956301780720979
  6. Richard Lynton, M.D.Folsom, CA 956301457420978
  7. Thomas Miller, MDFolsom, CA 956301891860292
  8. Craig Morris, MDFolsom, CA 956301588704472

Common questions

What is Byong J. Pak, M.D.'s NPI number?

Byong J. Pak, M.D.'s National Provider Identifier (NPI) is 1932231909, issued on Mar 12, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Byong J. Pak, M.D. located?

The NPPES record lists a practice address at 1650 Creekside Dr, Folsom, CA, 95630. Phone: (916) 983-7470. Providers update this record themselves, so call before visiting.

How can I verify Byong J. Pak, M.D.'s license?

NPPES lists California license number G35602, 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 Byong J. Pak, M.D. prescribe under Medicare Part D?

In 2024, Byong J. Pak, M.D. had 223 Medicare Part D claims for 103 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.