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Edit this profileWhere to find Fanni Ratzon, MD
- Greenwich location main office
5 Perryridge Rd, Greenwich, CT 06830 - Englewood location
350 Engle St, Englewood, NJ 07631
About Dr. Ratzon
Fanni Ratzon, MD practices anatomic & clinical pathology in Greenwich, CT. According to Medicare claims data, Fanni cared for 1,384 Medicare patients across 2,371 services. The services billed most often include pathology examination of tissue using a microscope, intermediate complexity, special stained specimen slides to examine tissue, each additional procedure, and special stained specimen slides to identify organisms including interpretation and report. The provider's National Provider Identifier (NPI) is 1316332752.
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
- (203) 785-7037
- Email not available
Practice Locations
5 PERRYRIDGE RD
Greenwich, CT 06830
350 Engle St
Englewood, NJ 07631
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
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
- High PSA levels
Skin
Skin pathology
Urine & kidney
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
Cancer & Genetic Testing
- Chromosome And Genetic Testing
- Flow Cytometry Test
- Liquid Biopsy
- Tumor Biomarker Testing
- Tumor Marker Testing
Cancer screening
Cardiac testing
- Troponin blood test
Cervical & Women's Health
Fertility testing
Hormone testing
- Cortisol blood test
- Testosterone blood test
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
Post-Mortem & Forensic
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
Tissue biopsy
- Breast tissue biopsy test
- Cervical biopsy test
- Lymph node biopsy review
Toxicology
- Heavy metals blood test
Transfusion testing
Urine testing
Procedures Most Often Billed to Medicare
2,371 services · 1,384 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Fine needle aspiration biopsy, first growth | Procedure | 10021 |
20 | Too few peers to compare |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
777 | More often than most peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
253 | As often as other peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to identify organisms including interpretation and report | Lab test | 88312 |
218 | More often than most peers in Anatomic & Clinical Pathology |
| Evaluation of fine needle aspirate with interpretation and report | Lab test | 88173 |
117 | More often than most peers in Anatomic & Clinical Pathology |
| Evaluation of fine needle aspirate | Lab test | 88172 |
116 | More than most peers in Anatomic & Clinical Pathology |
| Pathology examination of tissue using a microscope, moderately low complexity | Lab test | 88304 |
115 | More often than most peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to examine tissue, initial procedure | Lab test | 88342 |
105 | As often as other peers in Anatomic & Clinical Pathology |
| Pathology examination of tissue using a microscope, moderately high complexity | Lab test | 88307 |
104 | More often than most peers in Anatomic & Clinical Pathology |
| Microscopic genetic analysis of tumor, manual | Lab test | 88360 |
57 | 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 Greenwich 4
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2001 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Ratzon's specialty?
Dr. Ratzon is an anatomic & clinical pathology in Greenwich, CT. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Ratzon?
Dr. Ratzon is listed at 5 Perryridge Rd, Greenwich, CT 06830. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Ratzon?
The number on file is (203) 785-7037. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Ratzon's NPI number?
Dr. Ratzon's National Provider Identifier is 1316332752. 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. Ratzon's medical education?
Dr. Ratzon attended Other, graduating in 2001. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Ratzon been practicing?
Dr. Ratzon has 25 years experience. Calculated from a graduation year of 2001, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Ratzon known for?
According to Medicare billing data, Dr. Ratzon performs procedures including 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 Dr. Ratzon confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ratzon. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.