Boguslaw Bonczak, M.D.
NPI 1881893303 · Family Medicine Physician · Mchenry, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Boguslaw Bonczak, M.D. is a Family Medicine Physician provider in Mchenry, IL (NPI 1881893303).
Provider details
- NPI number
- 1881893303
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 125053459 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
5 documented practice locations
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 · 3 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Amlodipine Besylate | 14 |
| Atorvastatin Calcium | 13 |
| Losartan Potassium | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (4)
- 2971 W Algonquin RdSte 105Algonquin, IL 60102-9406Phone: (847) 854-5490Fax: (847) 854-8257
- 650 Dakota St Ste aCrystal Lake, IL 60012Phone: (815) 455-6000Fax: (815) 356-1104
- 360 Station Dr Fl 3Crystal Lake, IL 60014Phone: (815) 338-6600Fax: (815) 356-2320
- 235 S Rand RdLake Zurich, IL 60047-2273Phone: (847) 438-3770
Registry dates
- Enumerated
- 2007-07-13
- Last updated
- 2024-02-27
- Certified
- 2024-02-27
Frequently asked questions
- What is Boguslaw Bonczak's NPI number?
- Boguslaw Bonczak's National Provider Identifier (NPI) is 1881893303, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Boguslaw Bonczak's specialty?
- Boguslaw Bonczak is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Boguslaw Bonczak located?
- Boguslaw Bonczak's practice location on file with NPPES is 3715 Municipal Dr, Mchenry, IL 60050-5483.
- What is Boguslaw Bonczak's phone number?
- The practice phone number listed in the NPPES registry for Boguslaw Bonczak is (815) 759-1953.
- Does Boguslaw Bonczak accept Medicare?
- Boguslaw Bonczak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Boguslaw Bonczak's NPI active?
- Yes — Boguslaw Bonczak's NPI (1881893303) is active in the NPPES registry as of the last update on 2024-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.