Ruben Lewin, MD
NPI 1952365728 · Cardiovascular Disease Physician · Greenfield, WI
Ruben Lewin, MD is a Cardiovascular Disease Physician provider in Greenfield, WI (NPI 1952365728).
Provider details
- NPI number
- 1952365728
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 28898020 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-17
- Last updated
- 2011-03-11
Frequently asked questions
- What is Ruben Lewin's NPI number?
- Ruben Lewin's National Provider Identifier (NPI) is 1952365728, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ruben Lewin's specialty?
- Ruben Lewin is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Ruben Lewin located?
- Ruben Lewin's practice location on file with NPPES is 4931 S 27th St, Greenfield, WI 53221.
- What is Ruben Lewin's phone number?
- The practice phone number listed in the NPPES registry for Ruben Lewin is (414) 672-7200.
- Is Ruben Lewin's NPI active?
- Yes — Ruben Lewin's NPI (1952365728) is active in the NPPES registry as of the last update on 2011-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.