NPPES file of Aug 9, 2026

Samuel Cho, MD

Internal Medicine Physician · Anaheim, CA

Samuel Cho, MD is an internal medicine physician with a practice address in Anaheim, California, and NPI 1538217518, issued on Jan 8, 2007. Check the license (California A67621, 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
1538217518
Name
Samuel Cho
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A67621 CA
Self-reported in NPPES; status is on the state search
Practice location
441 N Lakeview Ave, Anaheim, CA 92807
Phone
(888) 988-2800
Enumerated
Jan 8, 2007
Record last updated
Dec 1, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20110224000242); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 1997
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 441 N Lakeview Ave

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

  1. Adan Abarca, MDFamily Medicine Physician1760553689
  2. Peter Abdel Sayed, MDVascular & Interventional Radiology Physician1760553648
  3. Behnam Abdollahi, MDDermatopathology Physician1598836520
  4. Mark Abramson, MDInternal Medicine Physician1396812202
  5. Suzanne Ackley, MDNeuromusculoskeletal Medicine & OMM Physician1740351667
  6. Carol Ahmed, D.O.Family Medicine Physician1598962961

Verify Samuel Cho in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A67621
    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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29% more Medicare Part D claims than the average internal medicine physician in 2024

4,093 Medicare Part D claims for 453 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 82 claims were for opioids.

  1. Samuel Cho4,093
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium486 claims
  2. Amlodipine Besylate333 claims
  3. Atenolol181 claims
  4. Rosuvastatin Calcium181 claims
  5. Losartan Potassium178 claims
  6. Lisinopril-Hydrochlorothiazide167 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. Southern California Permanente Medical GroupAnaheim, CA

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

Samuel Cho among 17,696 internal medicine physician records in California

Samuel Cho, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 44% of them.

  • NPI issued2007 · 44% of these records are older, 44% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1997 · median 2004 among the 11,065 with a school on file
  • Record last updated2021 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

189 internal medicine physician records list a practice address in Anaheim

They are 189 of the 9,018 NPPES records with a practice address in Anaheim, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Wesley Chang, M.D.Anaheim, CA 928071174593453
  2. Caren Chen, MDAnaheim Hills, CA 928071538172044
  3. Donna Frisch, MDAnaheim Hills, CA 928071093728503
  4. Sajini George, MDAnaheim, CA 928071972674919
  5. Bernard Hall, M.D.Anaheim, CA 928071912078411
  6. Audrey Konow, M.D.Anaheim, CA 928071659481125
  7. John Lauridsen, M.D.Anaheim, CA 928071730114166
  8. Edward Nepomuceno, M.D.Anaheim, CA 928071235215799

Common questions

What is Samuel Cho, MD's NPI number?

Samuel Cho, MD's National Provider Identifier (NPI) is 1538217518, issued on Jan 8, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Samuel Cho, MD located?

The NPPES record lists a practice address at 441 N Lakeview Ave, Anaheim, CA, 92807. Phone: (888) 988-2800. Providers update this record themselves, so call before visiting.

How can I verify Samuel Cho, MD's license?

NPPES lists California license number A67621, 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 Samuel Cho, MD prescribe under Medicare Part D?

In 2024, Samuel Cho, MD had 4,093 Medicare Part D claims for 453 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.