NPPES file of Aug 9, 2026

Yawen Cheng, MD

Internal Medicine Physician · Encinitas, CA

Yawen Cheng, MD is an internal medicine physician with a practice address in Encinitas, California, and NPI 1558715961, issued on Apr 21, 2016. Check the license (California 1558715961, 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
1558715961
Name
Yawen Cheng
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
1558715961 CA
Self-reported in NPPES; status is on the state search
Practice location
477 N EL Camino Real Ste A208, Encinitas, CA 92024
Phone
(760) 479-3900
Enumerated
Apr 21, 2016
Record last updated
Nov 11, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(760) 753-8175
Medicare enrollment
Enrolled (PECOS I20191108002735); 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 477 N EL Camino Real Ste A208

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

  1. Dolly Doctor, MDInternal Medicine Physician1205871456
  2. Nancy Fierro, MDFamily Medicine Physician1063427425
  3. Shelley Hammer, FNPFamily Nurse Practitioner1689684615
  4. David Ko, MDInternal Medicine Physician1689683690
  5. Gerard Lumkong, MDFamily Medicine Physician1720001977

Verify Yawen Cheng in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 1558715961
    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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23% more Medicare Part D claims than the average internal medicine physician in 2024

3,921 Medicare Part D claims for 432 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 14 claims were for opioids.

  1. Yawen Cheng3,921
  2. Specialty average3,176

Most prescribed

  1. Rosuvastatin Calcium303 claims
  2. Atorvastatin Calcium258 claims
  3. Levothyroxine Sodium234 claims
  4. Losartan Potassium197 claims
  5. Amlodipine Besylate185 claims
  6. Gabapentin119 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. Scripps HealthLa Jolla, CA

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

Yawen Cheng among 17,696 internal medicine physician records in California

Yawen Cheng, 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 2016, is newer than 79% of them.

  • NPI issued2016 · 79% of these records are older, 19% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2016 · median 2004 among the 11,065 with a school on file
  • Record last updated2019 · 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).

63 internal medicine physician records list a practice address in Encinitas

They are 63 of the 1,874 NPPES records with a practice address in Encinitas, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sonia Ahuja, M.D.Encinitas, CA 920241528059490
  2. Robert Bickerton, M.D.Encinitas, CA 920241992778765
  3. Dolly Doctor, MDEncinitas, CA 920241205871456
  4. Taiye Gilles, M.D.Encinitas, CA 920241841232733
  5. Robert Huang, M.D.Encinitas, CA 920241164423851
  6. James Labelle, M.D.Encinitas, CA 920241750381372
  7. Robert Matorin, M.D.Encinitas, CA 920241972525343
  8. Alexie Nguyen, M.D.Encinitas, CA 920241659367613

Common questions

What is Yawen Cheng, MD's NPI number?

Yawen Cheng, MD's National Provider Identifier (NPI) is 1558715961, issued on Apr 21, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Yawen Cheng, MD located?

The NPPES record lists a practice address at 477 N EL Camino Real Ste A208, Encinitas, CA, 92024. Phone: (760) 479-3900. Providers update this record themselves, so call before visiting.

How can I verify Yawen Cheng, MD's license?

NPPES lists California license number 1558715961, 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 Yawen Cheng, MD prescribe under Medicare Part D?

In 2024, Yawen Cheng, MD had 3,921 Medicare Part D claims for 432 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.