Dr. Fabian Nalichowski, MD
- Medicare services, 2024
- 515
- Medicare patients, 2024
- 167
- Part D claims, 2024
- 231
- MIPS score, 2024
- 83
- Hospital affiliations
- 3
- Practice address
- One Kish Hospital Drive, Dekalb, IL 60115
- Practice phone
- Call (815) 756-1521
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Nalichowski's professional email, personal email and mobile number
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Dr. Fabian Nalichowski is an internist in Dekalb, Illinois
Dr. Nalichowski practices at Northwestern Medicine Kishwaukee Hospital in Dekalb, Illinois, part of Northwestern Memorial HealthCare.
Dr. Nalichowski's NPI, 1689297996, was assigned on May 20, 2020. Dr. Nalichowski holds Michigan license 4301509670.
- NPI
- 1689297996NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678976883
- NPI enumeration date
- May 20, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (815) 756-1521
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Fabian Nalichowski practices at 2 locations in Dekalb, Illinois
Dr. Nalichowski's primary practice is Northwestern Medicine Kishwaukee Hospital, at One Kish Hospital Drive, Dekalb, IL 60115 in De Kalb County. The practice phone is (815) 756-1521. Dr. Nalichowski also practices at Northwestern Medicine Kishwaukee Hospital, 1 Kish Hospital Dr, Dekalb, IL 60115.
- Northwestern Medicine Kishwaukee HospitalPrimaryOne Kish Hospital Drive, Dekalb, IL 60115 · De Kalb CountyPhone(815) 756-1521
- Northwestern Medicine Kishwaukee Hospital1 Kish Hospital Dr, Dekalb, IL 60115 · Dekalb CountyPhone(815) 756-1521
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Fabian Nalichowski is affiliated with 3 sites of care and 2 medical groups
Dr. Nalichowski's primary practice is Northwestern Medicine Kishwaukee Hospital in Dekalb, Illinois, part of Northwestern Memorial HealthCare. Dr. Nalichowski is also affiliated with Memorial Healthcare. The medical group on file is Northwestern Medicine Regional Medical Group. Dmand AI also links Dr. Nalichowski to 1 more hospital and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Fabian Nalichowski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nalichowski practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Northwestern Medicine Kishwaukee Hospital | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Fabian Nalichowski is one of 5,652 internists in Illinois
Internal medicine is Dr. Nalichowski's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Nalichowski is licensed in Michigan.
Specialties and state licenses
- Internal medicine, MichiganPrimary
Internists near Dr. Nalichowski
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Fabian Nalichowski billed Medicare for 515 services in 2024
CMS data shows 515 Medicare services from Dr. Nalichowski across 6 procedure codes in 2024, for 167 Medicare patients. Medicare paid $46,421 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nalichowski's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 402024: 5151188%
Dr. Nalichowski compared with the Illinois median for internists, 2024
- Dr. Nalichowski
- Illinois median
- Medicare services
- 515vs 5669% below
- Medicare patients
- 167vs 20820% below
- Part D claims
- 59vs 28479% below
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Nalichowski's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nalichowski and other internists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Fabian Nalichowski treated 167 Medicare patients in 2024, average age 75
CMS counts 167 Medicare patients who saw Dr. Nalichowski in 2024. The largest group is 65 to 74, with 52 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 33% are also on Medicaid. Their average risk score is 2.05, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Nalichowski's median patient age at 75, with 48% women.
Dr. Nalichowski's Medicare patients by age, 2024
Dr. Nalichowski's Medicare patients by sex, 2024
- Women10160%
- Men6640%
Chronic conditions among Dr. Nalichowski's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- COPD53%
- Diabetes50%
- Ischemic heart disease50%
- Heart failure47%
- Chronic kidney disease44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nalichowski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Fabian Nalichowski wrote 231 Medicare Part D claims in 2024
In 2024, Dr. Nalichowski wrote 231 Medicare Part D claims for 133 patients. 93% of them were for generic drugs. CMS names the drug for 59 of them, across 4 drugs with 11 or more claims each, at $5,976 in total drug cost. In 2023, CMS named 13 claims across 1 drug.
Dr. Nalichowski's Part D claims by kind of drug, 2024
- Generic214 claims93%
- Brand-name17 claims7%
Dr. Nalichowski's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Nalichowski's Part D claims, 2024
- Opioids6%14 of 231 claims
- Antibiotics26%61 of 231 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 132024: 59354%
Drugs named by CMS: 4 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Fabian Nalichowski scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Nalichowski for performance year 2024, reported as part of a group. Dr. Nalichowski accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Nalichowski's MIPS scores, performance year 2024
- 83of 100Final score
- 58.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 74of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Fabian Nalichowski received $83 in industry payments in 2021
CMS Open Payments shows 1 general payment to Dr. Nalichowski from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) paid the most, $83.
Companies that paid Dr. Nalichowski the most, 2021 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Fabian Nalichowski's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Fabian Nalichowski
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Fabian Nalichowski's NPI number?
Dr. Fabian Nalichowski's NPI number is 1689297996. It was assigned on May 20, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Fabian Nalichowski?
Dr. Fabian Nalichowski is an internist in Dekalb, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Fabian Nalichowski practice?
Dr. Nalichowski practices at One Kish Hospital Drive, Dekalb, IL 60115. Dr. Nalichowski also practices at 1 Kish Hospital Dr, Dekalb, IL 60115. Dr. Nalichowski's primary practice is Northwestern Medicine Kishwaukee Hospital in Dekalb, Illinois, part of Northwestern Memorial HealthCare. Dmand AI also links Dr. Nalichowski to 1 hospital and 1 medical group.
What is Dr. Fabian Nalichowski's office phone number?
The practice phone on file for Dr. Nalichowski is (815) 756-1521.
What is Dr. Fabian Nalichowski's medical license number?
Dr. Nalichowski holds Michigan license 4301509670.
Which hospitals is Dr. Fabian Nalichowski affiliated with?
Dr. Nalichowski practices at Northwestern Medicine Kishwaukee Hospital in Dekalb, Illinois. Dr. Nalichowski is also affiliated with Memorial Healthcare. Dmand AI links Dr. Nalichowski to 1 more hospital.
What medical group is Dr. Fabian Nalichowski part of?
Dr. Nalichowski is linked to Northwestern Medicine Regional Medical Group. Dmand AI links Dr. Nalichowski to 1 more medical group.
Does Dr. Fabian Nalichowski accept Medicare?
Yes. CMS data shows Dr. Nalichowski billed Medicare for 515 services in 2024, and Dr. Nalichowski accepts Medicare assignment.
What is Dr. Fabian Nalichowski's MIPS score?
Dr. Nalichowski's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
How many Medicare patients does Dr. Fabian Nalichowski see?
CMS counts 167 Medicare patients who saw Dr. Nalichowski in 2024, with an average age of 75.
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What services does Dr. Fabian Nalichowski bill to Medicare?
In 2024, Dr. Nalichowski's most billed Medicare services were hospital inpatient care (99232), critical care (99291) and hospital inpatient care (99238).
What drugs does Dr. Fabian Nalichowski prescribe most?
In 2024 Medicare Part D data, Dr. Nalichowski's most prescribed drugs by claims were Prednisone, Levofloxacin and Hydrocodone-Acetaminophen.
Has Dr. Fabian Nalichowski received payments from drug or device companies?
CMS Open Payments shows $83 in general payments to Dr. Nalichowski from 1 company from 2021 to 2021. The largest total came from ZOLL Services LLC (A/K/A ZOLL LifeCor Corp).
How long has Dr. Fabian Nalichowski been practicing?
Dr. Nalichowski graduated from medical school in 2015, 11 years ago.
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