Jack Bartoszek, D.O.
NPI 1093714818 · Geriatric Medicine (Family Medicine) Physician · Mishawaka, IN
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Bartoszek, D.O. is a Geriatric Medicine (Family Medicine) Physician provider in Mishawaka, IN (NPI 1093714818).
Provider details
- NPI number
- 1093714818
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 02001105 (IN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 91 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 235 | 38 |
| Sertraline Hcl | 162 | 25 |
| Furosemide | 145 | 21 |
| Amlodipine Besylate | 126 | 19 |
| Levothyroxine Sodium | 126 | 20 |
| Carvedilol | 105 | 14 |
| Gabapentin | 104 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$766 across 13 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
- 2005-07-14
- Last updated
- 2013-09-20
Frequently asked questions
- What is Jack Bartoszek's NPI number?
- Jack Bartoszek's National Provider Identifier (NPI) is 1093714818, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Bartoszek's specialty?
- Jack Bartoszek is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Jack Bartoszek located?
- Jack Bartoszek's practice location on file with NPPES is 615 Fulmer Rd, Mishawaka, IN 46544-6911.
- What is Jack Bartoszek's phone number?
- The practice phone number listed in the NPPES registry for Jack Bartoszek is (574) 252-3085.
- Does Jack Bartoszek accept Medicare?
- Jack Bartoszek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jack Bartoszek's NPI active?
- Yes — Jack Bartoszek's NPI (1093714818) is active in the NPPES registry as of the last update on 2013-09-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.