Physician Profile
William H. Yong, MD practices anatomic & clinical pathology in Los Angeles, CA. William is a 1991 graduate of University of California, Geffen School of Medicine. William is also listed as specializing in specialist. According to Medicare claims data, William cared for 396 Medicare patients across 911 services. The services billed most often include antibody evaluation, each additional single antibody stain procedure, special stained specimen slides to examine tissue, each additional procedure, and pathology examination of tissue using a microscope, intermediate complexity.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
10833 LE CONTE AVE CHS B-186
Los Angeles, CA 90095
Within Anatomic & Clinical Pathology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Autoimmune & Joint
Blood cancer
Blood chemistry
Blood Disorders
Blood disorders
Cancer & Tumors
Cervical & Women's Health
Cervical Health
Digestive pathology
Digestive System
Hormones
Hormones & Metabolism
Infections
Infectious disease
Kidney & Urinary
Liver pathology
Prostate
Skin
Skin pathology
Urine & kidney
Biopsy & Tissue Testing
Blood chemistry
Cancer & Genetic Testing
Cancer screening
Cardiac testing
Cervical & Women's Health
Fertility testing
Hormone testing
Immunology
Infection & Microbiology Tests
Infectious disease
Inflammation testing
Pathology Consultations
Post-Mortem & Forensic
Routine blood testing
Routine Blood Tests
Specialty Lab Panels
Tissue biopsy
Toxicology
Transfusion testing
Urine testing
911 services · 396 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Antibody evaluation, each additional single antibody stain procedure | Lab test | 88350 |
255 |
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
121 |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
109 |
| Special stained specimen slides to examine tissue including interpretation and report | Lab test | 88313 |
100 |
| Special stained specimen slides to examine tissue, initial procedure | Lab test | 88342 |
68 |
| Pathology examination of tissue using a microscope, moderately high complexity | Lab test | 88307 |
62 |
| Preparation of tissue for examination by removing any calcium present | Lab test | 88311 |
52 |
| Electron microscopy for diagnosis | Lab test | 88348 |
31 |
| Antibody evaluation, initial single antibody stain procedure | Lab test | 88346 |
31 |
| Special stained specimen slides to examine tissue and frozen preparation of specimen including interpretation and report | Lab test | 88314 |
28 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Yong is an anatomic & clinical pathology in Los Angeles, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Yong is listed at 10833 Le Conte Ave Chs B-186, Los Angeles, CA 90095. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (310) 794-1355. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Yong's National Provider Identifier is 1578560520. 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. Yong attended University of California, Geffen School of Medicine, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
Dr. Yong has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Yong 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. Yong. 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.