Doctor profile · Federal record
Dr. Alexa Siddon, M.D.
Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · New Haven, CT
- NPI 1720240302
- Accepts Medicare
- MIPS 71.7 / 100 · 2023
- 18 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
20 York St, T-209
New Haven, CT 065103220
(203) 688-2259
fax (203) 688-5599
Credentials & registration
- NPI registered
- June 2008 — 18 yrs on file
- Profile last updated
- August 29, 2013
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 207ZP0102X — NUCC code
- State license (1)
- Connecticut #050417
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1720240302. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,769
Distinct HCPCS
10
Medicare allowed
$85,071
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
85390 |
Coagulation function screening test with interpretation and report | 514 | 334 | $38 | |
G0452 |
Molecular pathology procedure; physician interpretation and report | 283 | 205 | $49 | |
88189 |
Flow cytometry technique for dna or cell analysis, 16 or more markers | 270 | 242 | $87 | |
88188 |
Flow cytometry technique for dna or cell analysis, 9 to 15 markers | 181 | 165 | $65 | |
88341 |
Special stained specimen slides to examine tissue, each additional procedure | 104 | 29 | $29 | |
88187 |
Flow cytometry technique for dna or cell analysis, 2 to 8 markers | 88 | 75 | $37 | |
88305 |
Pathology examination of tissue using a microscope, intermediate complexity | 63 | 37 | $39 | |
88313 |
Special stained specimen slides to examine tissue including interpretation and report | 63 | 27 | $12 | |
88360 |
Microscopic genetic analysis of tumor, manual | 58 | 31 | $43 | |
85060 |
Blood smear interpretation by physician with written report | 55 | 54 | $25 |
In context: peer comparison
Among 21 peers in New Haven Anatomic Pathology & Clinical Pathology Physician, average services per provider: 136. This provider delivers 13× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Alexa Siddon's medical specialty?
Dr. Alexa Siddon practices Anatomic Pathology & Clinical Pathology Physician in New Haven, CT.
Where does Dr. Alexa Siddon practice?
Dr. Alexa Siddon practices at 20 York St, New Haven, CT 065103220. Office phone: 2036882259.
What is Dr. Alexa Siddon's NPI?
Dr. Alexa Siddon's National Provider Identifier (NPI) is 1720240302, issued by NPPES.
Does Dr. Alexa Siddon accept Medicare assignment?
Yes. Dr. Alexa Siddon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alexa Siddon commonly perform?
Top Medicare-reported procedures in 2023: Coagulation function screening test with interpretation and report (HCPCS 85390); Molecular pathology procedure; physician interpretation and report (HCPCS G0452); Flow cytometry technique for dna or cell analysis, 16 or more markers (HCPCS 88189). Source: CMS Medicare Physician & Other Practitioners file.