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- 3030 Old Ranch Pkwy, Suite 430, Seal Beach, CA 90740
About Dr. Yang
Changgao Yang, MD practices anatomic & clinical pathology in Seal Beach, CA. Changgao is also listed as specializing in hematopathology and pathology. According to Medicare claims data, Changgao cared for 3,587 Medicare patients across 12,433 services. The services billed most often include flow cytometry technique for dna or cell analysis, each additional marker, special stained specimen slides to examine tissue including interpretation and report, and pathology examination of tissue using a microscope, intermediate complexity. The provider's National Provider Identifier (NPI) is 1366435638.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (562) 799-8900
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
3030 OLD RANCH PKWY SUITE 430
Seal Beach, CA 90740
Conditions Evaluated or Diagnosed
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.
Conditions
Autoimmune & Joint
- Autoimmune Disease Markers
- Gout
Blood cancer
- Lymphoma
- Multiple Myeloma
Blood chemistry
- High calcium
- Low sodium or electrolyte imbalance
Blood Disorders
- Bleeding Disorders
- Blood Clotting Gene Mutation
- Hemochromatosis
- High White Blood Cell Count
- Iron-deficiency anemia
Blood disorders
- High Platelet Count
- Low Platelets
- Low White Blood Cell Count
Cancer & Tumors
- Breast Cancer Biopsy Findings
- Leukemia
- Lipoma
- Prostate Cancer Biopsy Results
- Suspicious Lung Spot
- Swollen Lymph Nodes
Cervical & Women's Health
- Endometrial hyperplasia
Cervical Health
- Abnormal cervical cells and cervical dysplasia
Digestive pathology
- Barrett's esophagus
Digestive System
- Abnormal Liver Enzymes
- Celiac disease
- H. pylori infection
- Inflammatory bowel disease
- Precancerous Colon Polyps
Hormones
Hormones & Metabolism
- High cholesterol
- Hypothyroidism
- Prediabetes
- Thyroid nodules
- Vitamin D deficiency
Infections
- Sepsis or blood infection
- Sexually transmitted infections
- UTI
Infectious disease
- HPV infection risk
- Lyme disease
Kidney & Urinary
- Bladder cancer
- High creatinine levels
Liver pathology
Prostate
- High PSA levels
Skin
Skin pathology
Urine & kidney
- Blood in the urine
- Kidney Disease
Procedures & services
Pathology Consultations
- Biopsy Second Opinion
- Second Opinion For Cancer
Biopsy & Tissue Testing
- Bone Marrow Biopsy Testing
- Colon Polyp Biopsy Examination
- Fine Needle Aspiration Biopsy
- Frozen Section During Surgery
- Skin Biopsy Lab Review
- Special Tissue Staining
- Thyroid Biopsy Examination
Blood chemistry
- Iron Level Blood Test
Cancer & Genetic Testing
- Chromosome And Genetic Testing
- Flow Cytometry Test
- Liquid Biopsy
- Tumor Biomarker Testing
- Tumor Marker Testing
Cancer screening
- Prostate cancer blood test
Cardiac testing
- Troponin blood test
Cervical & Women's Health
- Pap Smear Test
Fertility testing
- Sperm count test
Hormone testing
- Cortisol blood test
- Testosterone blood test
Immunology
- Immune System Blood Test
Infection & Microbiology Tests
- Blood Culture Test
- Colon cancer screening consult
- H. Pylori Breath Test
- STI and STD Screening
- Urine sediment test
Infectious disease
- Lyme disease test
Inflammation testing
- Inflammation Blood Tests
- Sed rate inflammation test
Post-Mortem & Forensic
- Paternity DNA Test
- Private Autopsy Service
Routine blood testing
- Basic metabolic panel
- Complete Blood Count
- Comprehensive Metabolic Panel
Routine Blood Tests
- Blood Clotting Test
- Cholesterol screening
- Hemoglobin A1c Test
- Kidney Function Blood Test
- Liver Function Blood Test
- Routine blood work
- Thyroid Blood Test
Specialty Lab Panels
- Allergy Blood Testing
- Autoimmune Blood Panel
- Celiac Disease Blood Test
- Urine Drug Screen
Tissue biopsy
- Breast tissue biopsy test
- Cervical biopsy test
- Lymph node biopsy review
Toxicology
- Heavy metals blood test
Transfusion testing
- Blood Type Test
Urine testing
Procedures Most Often Billed to Medicare
12,433 services · 3,587 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Flow cytometry technique for dna or cell analysis, each additional marker | Lab test | 88185 |
4,778 | More often than most peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to examine tissue including interpretation and report | Lab test | 88313 |
1,445 | More than most peers in Anatomic & Clinical Pathology |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
978 | More often than most peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
786 | More than most peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to examine tissue, each multiplex procedure | Lab test | 88344 |
742 | More than most peers in Anatomic & Clinical Pathology |
| Chromosome analysis for genetic defects, additional specialized banding technique | Lab test | 88283 |
581 | Too few peers to compare |
| Special stained specimen slides to identify organisms including interpretation and report | Lab test | 88312 |
545 | More than most peers in Anatomic & Clinical Pathology |
| Microscopic genetic analysis of tissue, manual, each additional multiplex stain procedure | Lab test | 88377 |
454 | More than most peers in Anatomic & Clinical Pathology |
| Tissue culture for tumor disorders of bone marrow and blood cells | Lab test | 88237 |
284 | Too few peers to compare |
| Cell examination of specimen, selective cellular enhancement technique | Lab test | 88112 |
216 | More often than most peers in Anatomic & Clinical Pathology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other anatomic & clinical pathology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1982 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Yang's specialty?
Dr. Yang is an anatomic & clinical pathology in Seal Beach, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Yang?
Dr. Yang is listed at 3030 Old Ranch Pkwy Suite 430, Seal Beach, CA 90740. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Yang?
The number on file is (562) 799-8900. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Yang's NPI number?
Dr. Yang's National Provider Identifier is 1366435638. 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
What is Dr. Yang's medical education?
Dr. Yang attended Other, graduating in 1982. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Yang been practicing?
Dr. Yang has 44 years experience. Calculated from a graduation year of 1982, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Yang known for?
According to Medicare billing data, Dr. Yang 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
Has Dr. Yang confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Yang. If this is you, claiming it is free.
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Guide.md listings do not constitute medical advice or an endorsement.