Fabian Nalichowski, MD
NPI 1689297996 · Internal Medicine Physician · Owosso, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Fabian Nalichowski, MD is a Internal Medicine Physician provider in Owosso, MI (NPI 1689297996).
Provider details
- NPI number
- 1689297996
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036176782 (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 tenure28% of score
6 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
515 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 204 | $75 |
| Critical Care, First 30-74 Minutes99291 | 106 | $205 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 | 86 | $77 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 63 | $113 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 31 | $125 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 25 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 18 | 17 |
| Levofloxacin | 17 | 17 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 13 | 12 |
| Apixabanbrand: Eliquis | 11 | 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 (2)
- 1 Kish Hospital DrDekalb, IL 60115-9602Phone: (815) 756-1521Fax: (815) 748-5789
- 1302 N Main StSandwich, IL 60548-2587Phone: (815) 786-8484Fax: (815) 981-7356
Registry dates
- Enumerated
- 2020-05-20
- Last updated
- 2025-08-28
- Certified
- 2025-08-28
Frequently asked questions
- What is Fabian Nalichowski's NPI number?
- Fabian Nalichowski's National Provider Identifier (NPI) is 1689297996, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Fabian Nalichowski's specialty?
- Fabian Nalichowski is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Fabian Nalichowski located?
- Fabian Nalichowski's practice location on file with NPPES is 826 W King St, Owosso, MI 48867-2120.
- What is Fabian Nalichowski's phone number?
- The practice phone number listed in the NPPES registry for Fabian Nalichowski is (989) 729-4977.
- Does Fabian Nalichowski accept Medicare?
- Fabian Nalichowski is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Fabian Nalichowski's NPI active?
- Yes — Fabian Nalichowski's NPI (1689297996) is active in the NPPES registry as of the last update on 2025-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.