Physician Profile
Marissa M. Sansone, M.D. practices rheumatology in New Haven, CT. Marissa is also listed as specializing in internal medicine and student in an organized health care education program. Medicare claims data shows Marissa provided 456 services to 397 patients. The services billed most often include new patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and insertion of needle into vein for collection of blood sample.
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.
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.
20 YORK ST
New Haven, CT 06510
Within Rheumatology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Autoimmune
Bone
Bone Health
Connective Tissue
Genetic & Connective Tissue
Inflammatory
Joints
Nerve & Tendon
Skin & Soft Tissue
Skin & Vascular
Soft Tissue
Spine & Back
Vascular
Most searched procedures
Consultation
Consultations
Diagnostics & Injections
Education & Support
Imaging
Injections
Lab & Diagnostics
Lab Work
Medication Management
Pain Relief
Regenerative Medicine
456 services · 397 patients · 6 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
88 | Less often than most peers in Rheumatology |
| X-ray of hand, minimum of 3 views | Imaging | 73130 |
27 | Less often than most peers in Rheumatology |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
114 | More than most peers in Rheumatology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
95 | Less often than most peers in Rheumatology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
87 | More often than most peers in Rheumatology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
45 | As often as other peers in Rheumatology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Marissa M. Sansone is a rheumatologist in New Haven, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Rheumatology”.
NPI registry
Marissa M. Sansone is listed at 20 York St, New Haven, CT 06510. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (203) 688-4242. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Marissa M. Sansone's National Provider Identifier is 1063874063. 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
Marissa M. Sansone attended Other, graduating in 2016. This comes from the CMS National Downloadable File.
CMS public data
Marissa M. Sansone has 10 years experience. Calculated from a graduation year of 2016, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Marissa M. Sansone performs procedures including insertion of needle into vein for collection of blood sample; reads or performs imaging such as x-ray of hand, minimum of 3 views, 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 Marissa M. Sansone. 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.