Stephen Cassivi, M.D.
NPI 1659350833 · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Rochester, MN
Enrolled with Medicare as Practitioner - Thoracic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Cassivi, M.D. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider in Rochester, MN (NPI 1659350833).
Provider details
- NPI number
- 1659350833
- Entity type
- Individual
- Primary specialty
- Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 44927 (MN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
151 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 45 | $112 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 29 | $92 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 20 | $130 |
| Initial Removal of Wedge of Lung Tissue Using an Endoscope32666 | 18 | $798 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 14 | $58 |
| Exam of Chest With Biopsy of Lymph Node Using an Endoscope39402 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$6,534 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-16
- Last updated
- 2020-08-12
- Certified
- 2020-08-12
Frequently asked questions
- What is Stephen Cassivi's NPI number?
- Stephen Cassivi's National Provider Identifier (NPI) is 1659350833, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Cassivi's specialty?
- Stephen Cassivi is listed in the NPPES registry with a primary specialty of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Cassivi located?
- Stephen Cassivi's practice location on file with NPPES is 200 1st St Sw, Rochester, MN 55905-0001.
- What is Stephen Cassivi's phone number?
- The practice phone number listed in the NPPES registry for Stephen Cassivi is (507) 284-2511.
- Does Stephen Cassivi accept Medicare?
- Stephen Cassivi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Cassivi's NPI active?
- Yes — Stephen Cassivi's NPI (1659350833) is active in the NPPES registry as of the last update on 2020-08-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.