Physician Profile
Larry Leh-Lin Chan, MD is a healthcare provider in Harbor City, CA specializing in internal medicine. Larry trained at Warren Alpert Medical School of Brown University, graduating in 1999. Larry is also listed as specializing in nephrology. Medicare claims data shows Larry provided 71 services to 29 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
25825 VERMONT AVE
Harbor City, CA 90710
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Most searched procedures
71 services · 29 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
50 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
21 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Chan is an internal medicine in Harbor City, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Dr. Chan is listed at 25825 VERMONT AVE, Harbor City, CA 90710. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (310) 325-5111. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Chan's National Provider Identifier is 1689733297. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Chan attended Warren Alpert Medical School of Brown University, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
Dr. Chan has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Chan the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chan. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.