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Edit this profileAt a glance
- 20 York St, T-209, New Haven, CT 06510
About Dr. Siddon
Based in New Haven, CT, Alexa J. Siddon, M.D. is listed in the NPI registry under anatomic & clinical pathology. According to Medicare claims data, Alexa cared for 1,363 Medicare patients across 1,893 services. The services billed most often include coagulation function screening test with interpretation and report, molecular pathology procedure; physician interpretation and report, and flow cytometry technique for dna or cell analysis, 16 or more markers. NPI 1720240302 identifies this record in the national registry.
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) 688-2259
- Email not available
Practice Locations
20 YORK ST T-209
New Haven, CT 06510
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
Pathology Consultations
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
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
1,893 services · 1,363 patients · 14 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Coagulation function screening test with interpretation and report | Lab test | 85390 |
502 | More than most peers in Anatomic & Clinical Pathology |
| Molecular pathology procedure; physician interpretation and report | Billing code | G0452 |
310 | More often than most peers in Anatomic & Clinical Pathology |
| Flow cytometry technique for dna or cell analysis, 16 or more markers | Lab test | 88189 |
267 | More than most peers in Anatomic & Clinical Pathology |
| Flow cytometry technique for dna or cell analysis, 9 to 15 markers | Lab test | 88188 |
174 | More than most peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to examine tissue, each additional procedure | Lab test | 88341 |
132 | Less often than most peers in Anatomic & Clinical Pathology |
| Flow cytometry technique for dna or cell analysis, 2 to 8 markers | Lab test | 88187 |
95 | More than most peers in Anatomic & Clinical Pathology |
| Special stained specimen slides to examine tissue including interpretation and report | Lab test | 88313 |
78 | As often as other peers in Anatomic & Clinical Pathology |
| Pathology examination of tissue using a microscope, intermediate complexity | Lab test | 88305 |
78 | Less often than most peers in Anatomic & Clinical Pathology |
| Microscopic genetic analysis of tumor, manual | Lab test | 88360 |
66 | As often as other peers in Anatomic & Clinical Pathology |
| Blood smear interpretation by physician with written report | Lab test | 85060 |
56 | 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.
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 New Haven 8
Same specialty, same city.
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 2008 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Alexa J. Siddon's specialty?
Alexa J. Siddon is an anatomic & clinical pathology in New Haven, CT. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Alexa J. Siddon?
Alexa J. Siddon is listed at 20 York St T-209, New Haven, CT 06510. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Alexa J. Siddon?
The number on file is (203) 688-2259. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Alexa J. Siddon's NPI number?
Alexa J. Siddon's National Provider Identifier is 1720240302. 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 Alexa J. Siddon's education?
Alexa J. Siddon attended Other, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How long has Alexa J. Siddon been practicing?
Alexa J. Siddon has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What is Alexa J. Siddon known for?
According to Medicare billing data, Alexa J. Siddon 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 Alexa J. Siddon confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Alexa J. Siddon. If this is you, claiming it is free.
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