Stephen Michaelson, M.D.
NPI 1457455180 · Cardiovascular Disease Physician · Norwalk, CT
Stephen Michaelson, M.D. is a Cardiovascular Disease Physician provider in Norwalk, CT (NPI 1457455180).
Provider details
- NPI number
- 1457455180
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 017282 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$69 across 3 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
- 2006-09-12
- Last updated
- 2026-05-24
Frequently asked questions
- What is Stephen Michaelson's NPI number?
- Stephen Michaelson's National Provider Identifier (NPI) is 1457455180, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Michaelson's specialty?
- Stephen Michaelson is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Michaelson located?
- Stephen Michaelson's practice location on file with NPPES is 40 Cross St, Norwalk, CT 06851-4647.
- What is Stephen Michaelson's phone number?
- The practice phone number listed in the NPPES registry for Stephen Michaelson is (203) 845-2160.
- Is Stephen Michaelson's NPI active?
- Yes — Stephen Michaelson's NPI (1457455180) is active in the NPPES registry as of the last update on 2026-05-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.