NPPES file of Aug 9, 2026

Bernie Young Sunwoo, MD

Sleep Medicine (Internal Medicine) Physician · San Diego, CA

Bernie Young Sunwoo, MD is a sleep medicine (internal medicine) physician with a practice address in San Diego, California, and NPI 1336294107, issued on Jan 24, 2007. Check the license (California A138242, 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
1336294107
Name
Bernie Young Sunwoo
Credential
MD
Primary taxonomy
Sleep Medicine (Internal Medicine) Physician 207RS0012X
License number
A138242 CA
Self-reported in NPPES; status is on the state search
Practice location
4520 Executive Dr, San Diego, CA 92121
Phone
(800) 926-8273
Enumerated
Jan 24, 2007
Record last updated
Jun 4, 2026
Medicare enrollment
Enrolled (PECOS I20151009001912); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 4520 Executive Dr

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

  1. Kathryn Affleck, PTPhysical Therapist1922026491
  2. Tara Akins, FNPFamily Nurse Practitioner1548475072
  3. Praveen Akuthota, M.D.Critical Care Medicine (Internal Medicine) Physician1396704698
  4. Mario Alberti, DDSGeneral Practice Dentistry1982705893
  5. John Alexander, PTPhysical Therapist1194743674
  6. Daniel Crouch, MDCritical Care Medicine (Internal Medicine) Physician1710182423

Verify Bernie Young Sunwoo in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A138242
    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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61% more Medicare Part D claims than the average sleep medicine (internal medicine) physician in 2024

943 Medicare Part D claims for 142 beneficiaries, against an average of 585 among the 852 providers of this specialty who prescribed in Part D. Brand-name drugs were 57% of claims.

  1. Bernie Sunwoo943
  2. Specialty average585

Most prescribed

  1. Albuterol Sulfate Hfa112 claims
  2. Trelegy Ellipta76 claims
  3. Spiriva Respimat74 claims
  4. Montelukast Sodium65 claims
  5. Symbicort62 claims
  6. Prednisone41 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

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. Regents OF The University OF CaliforniaSan Diego, CA

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

Bernie Young Sunwoo among 129 sleep medicine (internal medicine) physician records in California

Bernie Young Sunwoo, MD is one of 129 sleep medicine (internal medicine) physician records with a practice address in California. 95% 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 29% of them.

  • NPI issued2007 · 29% of these records are older, 59% newer
  • In a Medicare fileYes · 95% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated2002 · median 2006 among the 106 with a school on file
  • Record last updated2026 · 35% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sleep Medicine (Internal Medicine) Physician providers in California

There are 129 sleep medicine (internal medicine) physician records in California.

The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes

  1. Renata Shafor, M.D.San Diego, CA 921211952441396
  2. Robert Bercovitch, MDSan Diego, CA 921201184819237
  3. Shalini Gupta, M.D.San Diego, CA 921201184885865
  4. Dominic Munafo, M.D.San Diego, CA 921231174861033
  5. Pegah Mashayekhi, D.O.San Diego, CA 921301851650584
  6. Kianoush Khalili, MDSan Diego, CA 921341881258556
  7. Lawrence Kline, D.O.San Diego, CA 921031730140278
  8. Jose Loredo, M.D.San Diego, CA 921031891728531

Common questions

What is Bernie Young Sunwoo, MD's NPI number?

Bernie Young Sunwoo, MD's National Provider Identifier (NPI) is 1336294107, issued on Jan 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Bernie Young Sunwoo, MD located?

The NPPES record lists a practice address at 4520 Executive Dr, San Diego, CA, 92121. Phone: (800) 926-8273. Providers update this record themselves, so call before visiting.

How can I verify Bernie Young Sunwoo, MD's license?

NPPES lists California license number A138242, 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 Bernie Young Sunwoo, MD prescribe under Medicare Part D?

In 2024, Bernie Young Sunwoo, MD had 943 Medicare Part D claims for 142 beneficiaries; the average among sleep medicine (internal medicine) physician prescribers was 585. Part D covers Medicare prescriptions only.

What is Bernie Young Sunwoo, MD's MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.