Jonathan Makielski, MD
NPI 1255308193 · Cardiovascular Disease Physician · Fitchburg, WI
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jonathan Makielski, MD is a Cardiovascular Disease Physician provider in Fitchburg, WI (NPI 1255308193).
Provider details
- NPI number
- 1255308193
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 36851 (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
- 2006-02-28
- Last updated
- 2020-06-17
- Certified
- 2020-06-17
Frequently asked questions
- What is Jonathan Makielski's NPI number?
- Jonathan Makielski's National Provider Identifier (NPI) is 1255308193, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jonathan Makielski's specialty?
- Jonathan Makielski is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Jonathan Makielski located?
- Jonathan Makielski's practice location on file with NPPES is 2738 Richardson St, Fitchburg, WI 53711-5292.
- What is Jonathan Makielski's phone number?
- The practice phone number listed in the NPPES registry for Jonathan Makielski is (608) 276-4070.
- Does Jonathan Makielski accept Medicare?
- Jonathan Makielski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jonathan Makielski's NPI active?
- Yes — Jonathan Makielski's NPI (1255308193) is active in the NPPES registry as of the last update on 2020-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.