
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Lin, Internist in Fontana, CA?
Where did Dr. Lin go to medical school and complete their residency?
Residency: Lac+Usc Medical Center | USC/LAC-Keck School of Medicine
Medical School: Western University of Health Sciences College of Osteopathic Medicine of the Pacific
Is Dr. Lin board certified as an Internist?
Yes, Dr. Katherine Lin, DO is board certified by the American Board of Internal Medicine
What languages does Dr. Lin speak?
Dr. Lin and their clinical team can communicate with patients in the following languages:
- English
What conditions does an Internist like Dr. Lin typically treat?
As an Internist, Dr. Lin diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Lin. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- General Health Screening
- Health Screening
- Routine Check-up
- Preventive Health Exam
- Wellness Screening
ICD-10 Codes:
- Z139: Encounter for screening, unspecified
Also known as:
- Immunization Visit
- Vaccines
- Vaccination appointment
- Shot visit
- Immunization encounter
ICD-10 Codes:
- Z23: Encounter for immunization
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Type 2 Diabetes
- Diabetes Type 2
- Type 2 diabetes
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
Also known as:
- Personal Choice Not to Vaccinate
- Vaccine Refusal
- Patient Declined Vaccination
- Unvaccinated by Choice
ICD-10 Codes:
- Z2820: Immunization not carried out because of patient decision for unspecified reason
Also known as:
- Enlarged Prostate with Urinary Symptoms
- Enlarged Prostate (BPH)
- Enlarged Prostate (Benign Prostatic Hyperplasia)
- BPH with LUTS
- Prostate enlargement with urinary issues
- Benign prostatic hyperplasia with urinary symptoms
ICD-10 Codes:
- N401: Benign prostatic hyperplasia with lower urinary tract symptoms
Also known as:
- Cervical Cancer Screening
- HPV and Pap Test Results
- Pap Test
- HPV Test
- Cervical Smear
- Early Cervical Cancer Detection
ICD-10 Codes:
- Z124: Encounter for screening for malignant neoplasm of cervix
What procedures does an Internist like Dr. Lin typically perform?
As an Internist, procedures performed by Dr. Katherine Lin may include:
- Ambulatory Care Consultation
- Annual Check Up
- Annual Physical
- Aromatherapy
- Bladder and Bowel Management
- Blood Pressure Testing
- Bowel and Bladder Management
- Certified Medical Examination for Commercial Driver / Vessel Master
Please contact Dr. Lin's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Lin accept my insurance?
Dr. Lin accepts most major insurance plans. Important: Please call our office at (909) 427-5000 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Lin accept in Fontana, CA?
Dr. Lin in Fontana, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
AlphaCare
Centene Corporation
Heritage Health
Kaiser Permanente
Medicare
Other Health Care Provider
UnitedHealth Group
View All Insurances
Where is Dr. Lin's office located?
What hospitals are Dr. Lin affiliated with?
Castle Connolly Top Hospital
This doctor is affiliated with a Castle Connolly Top Hospital.
Dr. Lin has admitting privileges at the following hospitals:

Ranked Cancer Surgery
Ranked Mastectomy
What is Dr. Lin's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Lin's National Provider Identifier (NPI) number is 1427208651.
What common questions do patients ask about Dr. Lin?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Lin
What is Dr. Katherine Lin's specialty?
What does an Internist do?
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.