Lorraine Lor Wen Cheng, MD
Family Medicine Physician · Monrovia, CA
Lorraine Lor Wen Cheng, MD is a family medicine physician with a practice address in Monrovia, California, and NPI 1912199696, issued on Aug 15, 2007. Check the license (California A103659, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lorraine Lor Wen Cheng
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A103659 CA
Self-reported in NPPES; status is on the state search - Practice location
- 121 S Madison Ave Apt A, Monrovia, CA 91016
- Phone
- (818) 653-4463
- Enumerated
- Aug 15, 2007
- Record last updated
- Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101117000376); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Lorraine Lor Wen Cheng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A103659Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average family medicine physician in 2024
371 Medicare Part D claims for 269 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 31 claims were for opioids.
Most prescribed
- Cephalexin59 claims
- Prednisone44 claims
- Meloxicam25 claims
- Amoxicillin-Clavulanate Potass19 claims
- Azithromycin19 claims
- Hydrocodone-Acetaminophen15 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
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lorraine Lor Wen Cheng among 17,133 family medicine physician records in California
Lorraine Lor Wen Cheng, MD is one of 17,133 family 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 41% of them.
- NPI issued2007 · 41% of these records are older, 47% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2006 · median 2005 among the 10,652 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in California
There are 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Monrovia → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Donald Balacuit, DOMonrovia, CA 910161598737116
- Gerardo Guba, MDMonrovia, CA 910161164402632
- Louis Ho, D.O.Monrovia, CA 910161629375431
- Daisha Ortega, MDMonrovia, CA 910161356905954
- Reena Patel, M.D.Monrovia, CA 910161194958256
- Zaw Ye, MDMonrovia, CA 910161144886599
- Arbi Ghazarian, M.D.Montrose, CA 910201992773253
- Steven Kamajian, D.OMontrose, CA 910201295703320
Common questions
What is Lorraine Lor Wen Cheng, MD's NPI number?
Lorraine Lor Wen Cheng, MD's National Provider Identifier (NPI) is 1912199696, issued on Aug 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Lorraine Lor Wen Cheng, MD located?
The NPPES record lists a practice address at 121 S Madison Ave Apt A, Monrovia, CA, 91016. Phone: (818) 653-4463. Providers update this record themselves, so call before visiting.
How can I verify Lorraine Lor Wen Cheng, MD's license?
NPPES lists California license number A103659, 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 Lorraine Lor Wen Cheng, MD prescribe under Medicare Part D?
In 2024, Lorraine Lor Wen Cheng, MD had 371 Medicare Part D claims for 269 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.