Physician Profile
Georgios Deftereos, M.D.
Unclaimed ProfileAbout Dr. Deftereos
Georgios Deftereos, M.D. practices anatomic & clinical pathology in San Francisco, CA. According to Medicare claims data, Georgios cared for 1,359 Medicare patients across 1,705 services. The services billed most often include cell examination of specimen, selective cellular enhancement technique, pathology examination of tissue using a microscope, intermediate complexity, 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 — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
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.
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
- (415) 353-7043
- Email not available
Practice Locations
1825 4TH STREET
San Francisco, CA 94143
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
Blood cancer
Blood chemistry
Blood Disorders
- Bleeding Disorders
- Blood Clotting Gene Mutation
- Hemochromatosis
- High White Blood Cell Count
- Iron-deficiency anemia
Blood disorders
Cancer & Tumors
- Breast Cancer Biopsy Findings
- Leukemia
- Lipoma
- Prostate Cancer Biopsy Results
- Suspicious Lung Spot
- Swollen Lymph Nodes
Cervical & Women's Health
Cervical Health
Digestive pathology
Digestive System
- Abnormal Liver Enzymes
- Celiac disease
- H. pylori infection
- Inflammatory bowel disease
- Precancerous Colon Polyps
Hormones
Hormones & Metabolism
Infections
Infectious disease
Kidney & Urinary
Liver pathology
Prostate
Skin
Skin pathology
Urine & kidney
Procedures & services
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
Cancer & Genetic Testing
- Chromosome And Genetic Testing
- Flow Cytometry Test
- Liquid Biopsy
- Tumor Biomarker Testing
- Tumor Marker Testing
Cancer screening
Cardiac testing
Cervical & Women's Health
Fertility testing
Hormone testing
Immunology
Infection & Microbiology Tests
- Blood Culture Test
- Colon cancer screening consult
- H. Pylori Breath Test
- STI and STD Screening
- Urine sediment test
Infectious disease
Inflammation testing
Pathology Consultations
Post-Mortem & Forensic
Routine blood testing
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
Tissue biopsy
Toxicology
Transfusion testing
Urine testing
Procedures Most Often Billed to Medicare
1,705 services · 1,359 patients · 18 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Fine needle aspiration biopsy using ultrasound guidance, first growth | Procedure | 10005 |
50 | More often than most peers in Anatomic & Clinical Pathology |
| Fine needle aspiration biopsy, first growth | Procedure | 10021 |
12 | Too few peers to compare |
| Cell examination of specimen, selective cellular enhancement technique | Lab test | 88112 |
377 | More than most peers in Anatomic & Clinical Pathology |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
198 | Less often than most peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
191 | As often as other peers in Anatomic & Clinical Pathology |
| Molecular pathology procedure; physician interpretation and report | Billing code | G0452 |
166 | More often than most peers in Anatomic & Clinical Pathology |
| Evaluation of fine needle aspirate with interpretation and report | Lab test | 88173 |
154 | More than most peers in Anatomic & Clinical Pathology |
| Evaluation of fine needle aspirate | Lab test | 88172 |
149 | More than most peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to examine tissue, initial procedure | Lab test | 88342 |
96 | As often as other peers in Anatomic & Clinical Pathology |
| Microscopic genetic analysis of tissue, computer-assisted technology, initial procedure, each multiplex procedure | Lab test | 88374 |
58 | As often as other 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 2
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other anatomic & clinical pathology specialists in San Francisco 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2005 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Fine needle aspiration biopsy using ultrasound guidance, first growth 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Georgios Deftereos specialize in?
Georgios Deftereos is an anatomic & clinical pathology in San Francisco, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Georgios Deftereos located?
Georgios Deftereos is listed at 1825 4Th Street, San Francisco, CA 94143. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Georgios Deftereos's phone number?
The number on file is (415) 353-7043. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Georgios Deftereos's NPI number?
Georgios Deftereos's National Provider Identifier is 1225384456. 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
Where did Georgios Deftereos train?
Georgios Deftereos attended Other, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How long has Georgios Deftereos been practicing?
Georgios Deftereos has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What does Georgios Deftereos do most often?
According to Medicare billing data, Georgios Deftereos performs procedures including fine needle aspiration biopsy using ultrasound guidance, first growth and fine needle aspiration biopsy, first growth, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Georgios Deftereos confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Georgios Deftereos. 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.