NPPES file of Aug 9, 2026

Loren Yui Chen, M.D.

Internal Medicine Physician · Panorama City, CA

Loren Yui Chen, M.D. is an internal medicine physician with a practice address in Panorama City, California, and NPI 1972581643, issued on Jan 4, 2006. Check the license (California A60889, 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
1972581643
Name
Loren Yui Chen
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
A60889 CA
Self-reported in NPPES; status is on the state search
Practice location
14860 Roscoe Blvd, Panorama City, CA 91402
Phone
(818) 787-4084
Enumerated
Jan 4, 2006
Record last updated
Nov 8, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(818) 994-4491
Medicaid ID
9990935 CA
Medicare enrollment
Enrolled (PECOS I20040908000575); accepts Medicare assignment
Medical or professional school
University Of California, Davis School Of Medicine, 1994
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 14860 Roscoe Blvd

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

  1. Sabrina Afroz, MDFamily Medicine Physician1790470219
  2. Elizabeth Bertrand, MS, RDRegistered Dietitian1538346010
  3. Shovek BoyadjianFamily Medicine Physician1619950342
  4. Tirso Del Junco, MDSurgery Physician1306811625
  5. Shehnaz Habib, M.D.Internal Medicine Physician1215039631
  6. Irma Harriman, M.D.Nephrology Physician1619976784

Verify Loren Yui Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A60889
    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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62% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,198 Medicare Part D claims for 181 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 45 claims were for opioids.

  1. Loren Chen1,198
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium82 claims
  2. Alprazolam59 claims
  3. Tamsulosin Hcl42 claims
  4. Omeprazole41 claims
  5. Metformin Hcl35 claims
  6. Albuterol Sulfate Hfa29 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.

Industry payments in 2024: $42.56

2 payments; by number, the most common kind was food and beverage; the largest payer was Insulet Corporation. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Loren Chen$42.56
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

113 internal medicine physician records list a practice address in Panorama City

They are 113 of the 1,412 NPPES records with a practice address in Panorama City, and 17,696 internal medicine physician records in California.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Loren Yui Chen, M.D.'s NPI number?

Loren Yui Chen, M.D.'s National Provider Identifier (NPI) is 1972581643, issued on Jan 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Loren Yui Chen, M.D. located?

The NPPES record lists a practice address at 14860 Roscoe Blvd, Panorama City, CA, 91402. Phone: (818) 787-4084. Providers update this record themselves, so call before visiting.

How can I verify Loren Yui Chen, M.D.'s license?

NPPES lists California license number A60889, 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 Loren Yui Chen, M.D. prescribe under Medicare Part D?

In 2024, Loren Yui Chen, M.D. had 1,198 Medicare Part D claims for 181 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.