Physician Profile
Dianna Ng, MD is a healthcare provider in San Francisco, CA specializing in anatomic & clinical pathology. Dianna trained at New York University School of Medicine, graduating in 2011. Medicare claims data shows Dianna provided 1,469 services to 1,093 patients. The services billed most often include pathology examination of tissue using a microscope, intermediate complexity, cell examination of specimen, selective cellular enhancement technique, and special stained specimen slides to examine tissue, each additional procedure.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
185 BERRY ST SUITE 100
San Francisco, CA 94107
400 Parnassus Ave
San Francisco, CA 94143
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
1,469 services · 1,093 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Fine needle aspiration biopsy using ultrasound guidance, first growth | Procedure | 10005 |
43 | More often than most peers in Anatomic & Clinical Pathology |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
245 | Less often than most peers in Anatomic & Clinical Pathology |
| Cell examination of specimen, selective cellular enhancement technique | Lab test | 88112 |
199 | More often than most peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
163 | As often as other peers in Anatomic & Clinical Pathology |
| Evaluation of fine needle aspirate with interpretation and report | Lab test | 88173 |
142 | More than most peers in Anatomic & Clinical Pathology |
| Evaluation of fine needle aspirate | Lab test | 88172 |
128 | More than most peers in Anatomic & Clinical Pathology |
| Pathology cytologic examination of specimen during surgery, initial site | Lab test | 88333 |
123 | More than most peers in Anatomic & Clinical Pathology |
| Cell examination of specimen, concentration technique | Lab test | 88108 |
105 | More often than most peers in Anatomic & Clinical Pathology |
| Pap test, evaluation of fine needle aspirate, immediate, each additional evaluation episode | Lab test | 88177 |
102 | More often than most peers in Anatomic & Clinical Pathology |
| Pathology cytologic examination of specimen during surgery, each additional site | Lab test | 88334 |
75 | 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.
Dr. Ng is an anatomic & clinical pathology in San Francisco, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Dr. Ng is listed at 185 Berry St Suite 100, San Francisco, CA 94107. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (415) 353-7359. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Ng's National Provider Identifier is 1942599873. 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. Ng attended New York University School of Medicine, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
Dr. Ng has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Ng performs procedures including fine needle aspiration biopsy using ultrasound guidance, first growth, alongside routine visits and testing. 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. Ng. 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.