Catherine P. Lin, M.D.
Internal Medicine Physician · Los Angeles, CA
Catherine P. Lin, M.D. is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1336427061, issued on Jul 29, 2011. Check the license (California A111149, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Catherine P. Lin
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A111149 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5427 Whittier Blvd, Los Angeles, CA 90022
- Phone
- (323) 869-1900
- Enumerated
- Jul 29, 2011
- Record last updated
- Nov 22, 2011 (not updated in 15 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 5427 Whittier Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Catherine Aquino, FNPObstetrics & Gynecology Nurse Practitioner1558594911
- Jon AyalaMental Health Counselor1174347405
- Shahryar Balakhani, D.O.Family Medicine Physician1699052548
- Alonso Bautista, MFTIMarriage & Family Therapist1689005431
- Marivic Bautista, MDAdult Medicine Physician1760680243
- Ana Bevilacquac, CNACase Manager/Care Coordinator1316093735
Verify Catherine P. Lin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A111149Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
229 Medicare Part D claims for 119 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Ciprofloxacin Hcl16 claims
- Ibuprofen15 claims
- Albuterol Sulfate Hfa13 claims
- Baclofen12 claims
- Nitrofurantoin Mono-Macro12 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.
Catherine P. Lin among 17,696 internal medicine physician records in California
Catherine P. Lin, M.D. 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 2011, is newer than 66% of them.
- NPI issued2011 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2011 · 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).
1,423 internal medicine physician records list a practice address in Los Angeles
They are 1,423 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Los Angeles → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Arta Bakshandeh, D.O.East Los Angeles, CA 900221982931853
- Michael Block, MDLos Angeles, CA 900221134203656
- Kusum ChaudryLos Angeles, CA 900221215077094
- David De La Loza, MDLos Angeles, CA 900221346326394
- Tyler DuongLos Angeles, CA 900221487794277
- Selena Huey, M.D.Los Angeles, CA 900221760765044
- Alberto Jimeno, MDLos Angeles, CA 900221629164900
- Lloyd Johnson, M.D., PH.D.Los Angeles, CA 900221205913753
Common questions
What is Catherine P. Lin, M.D.'s NPI number?
Catherine P. Lin, M.D.'s National Provider Identifier (NPI) is 1336427061, issued on Jul 29, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Catherine P. Lin, M.D. located?
The NPPES record lists a practice address at 5427 Whittier Blvd, Los Angeles, CA, 90022. Phone: (323) 869-1900. Providers update this record themselves, so call before visiting.
How can I verify Catherine P. Lin, M.D.'s license?
NPPES lists California license number A111149, 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 Catherine P. Lin, M.D. prescribe under Medicare Part D?
In 2024, Catherine P. Lin, M.D. had 229 Medicare Part D claims for 119 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.