Biol Blood Marrow Transplant
Antineoplastic AgentsBortezomibHematopoietic Stem Cell Transplantation
Dr. Ilka Decker, MD
NPI1891138616PAC ID8820391402
- Medicare services, 2024
- 498
- Medicare patients, 2024
- 154
- Part D claims, 2024
- 667
- Publications
- 3
- Hospital affiliations
- 2
- Practice address
- 1500 E Medical Center Dr, Ann Arbor, MI 48109
- Practice phone
- Call (734) 936-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Hospital
School-Based Health Center · Ann Arbor, Michigan
Find Dr. Decker's professional email, personal email and mobile number
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Dr. Ilka Decker is a nephrologist in Ann Arbor, Michigan
Dr. Decker practices at University Hospital in Ann Arbor, Michigan.
Dr. Decker's NPI, 1891138616, was assigned on April 11, 2013. Dr. Decker graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 2013. Dr. Decker holds Michigan license 4301109103.
NPI and contact details
- NPI
- 1891138616NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820391402
- NPI enumeration date
- April 11, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (734) 936-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ilka Decker practices at University Hospital in Ann Arbor, Michigan
Dr. Decker's primary practice is University Hospital, at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The practice phone is (734) 936-4000.
- University Hospital1500 E Medical Center Dr, Ann Arbor, MI 48109Phone(734) 936-4000
Source: Dmand AI Affiliation Data
Dr. Ilka Decker is affiliated with 4 sites of care and 1 medical group
Dr. Decker's primary practice is University Hospital in Ann Arbor, Michigan. Dr. Decker is also affiliated with University Hospital. The medical group on file is University of Michigan Health. Dmand AI also links Dr. Decker to 1 more hospital and 1 dialysis center, each named with a free account. Dr. Decker's employer is on file too: a school & student health.
University HospitalPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ilka Decker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Decker practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ilka Decker is one of 310 nephrologists in Michigan
Nephrology is Dr. Decker's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Decker is licensed in Michigan.
Specialties and state licenses
- Nephrology, MichiganPrimary
Nephrologists near Dr. Decker
Counts of nephrologists 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. Ilka Decker billed Medicare for 498 services in 2024
CMS data shows 498 Medicare services from Dr. Decker across 6 procedure codes in 2024, for 154 Medicare patients. Medicare paid $63,823 for them.
Medicare services, 2024498
Medicare patients154
Paid by Medicare$63,823
Procedure codes6
Dr. Decker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4982024: 28243%
- Tests and treatments
- 2023: 1802024: 13923%
- Other services
- 2023: 02024: 77
Where Dr. Decker's Medicare services took place, 2024
- In an office13928%
- In a facility35972%
Dr. Decker compared with the Michigan median for nephrologists, 2024
- Dr. Decker
- Michigan median
- Medicare services
- 498vs 84941% below
- Medicare patients
- 154vs 26943% below
- Part D claims
- 527vs 5748% below
Medians across 310 nephrologists in Michigan with Dmand AI profiles that report each measure.
Dr. Decker'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.
Need commercial claims for Dr. Decker?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Decker and other nephrologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ilka Decker treated 154 Medicare patients in 2024, average age 69
CMS counts 154 Medicare patients who saw Dr. Decker in 2024. The largest group is 65 to 74, with 65 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. 27% are also on Medicaid. Their average risk score is 4.51, 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. Decker's median patient age at 65, with 50% women.
Medicare patients, 2024154
Average age69
Average risk score4.51
Also on Medicaid27%
Dr. Decker's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Decker's Medicare patients by sex, 2024
- Women7649%
- Men7851%
Chronic conditions among Dr. Decker's Medicare patients, 2024
- Chronic kidney disease75%
- High blood pressure75%
- High cholesterol74%
- Diabetes59%
- Heart failure51%
- Ischemic heart disease48%
- Arthritis45%
- Mood disorders40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Decker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women50%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ilka Decker wrote 667 Medicare Part D claims in 2024
In 2024, Dr. Decker wrote 667 Medicare Part D claims for 99 patients. 89% of them were for generic drugs. CMS names the drug for 527 of them, across 21 drugs with 11 or more claims each, at $42,292 in total drug cost. In 2023, CMS named 461 claims across 19 drugs.
Part D claims, 2024667
Drugs named by CMS21
Total drug cost$42,292
Part D patients99
Dr. Decker's Part D claims by kind of drug, 2024
- Generic595 claims89%
- Brand-name72 claims11%
Dr. Decker'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. Decker's Part D claims, 2024
- Antibiotics4%29 of 667 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: 4612024: 52714%
Drugs named by CMS: 21 in 2024, 19 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. Ilka Decker offers telehealth to Medicare patients
Dr. Decker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Decker as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ilka Decker has 3 publications on record
Dmand AI links 3 papers to Dr. Decker, published from 2014 to 2017. 2017 was the busiest year, with 2. The most frequent topics are Antineoplastic Agents. Dr. Decker's most frequent co-authors are Stacey Goodman, MD, Daniel J. Lenihan, MD and Beatrice L. Concepcion, MD.
Papers3
Years published2014 to 2017
Topics Dr. Decker writes about most
- Antineoplastic Agents
Dr. Decker's most frequent co-authors
- Stacey Goodman, MD2 shared papers
- Daniel J. Lenihan, MD2 shared papers
- Beatrice L. Concepcion, MD1 shared paper
Recent publications by Dr. Decker
AmyloidosisAntineoplastic AgentsAntineoplastic Combined Chemotherapy Protocols
See who Dr. Decker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Decker works with, so you can find a warm path to the right nephrologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ilka Decker received $45 in industry payments from 2021 to 2022
CMS Open Payments shows 2 general payments to Dr. Decker from 2 drug and device companies from 2021 to 2022. Education make up the largest share, 100% of the total. Relypsa, Inc. paid the most, $44.
General payments to Dr. Decker by program year, 2021 to 2022
Companies that paid Dr. Decker the most, 2021 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ilka Decker graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University
Dr. Decker graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ilka Decker'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 | Dmand AI Affiliation 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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. Ilka Decker
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. Ilka Decker's NPI number?
Dr. Ilka Decker's NPI number is 1891138616. It was assigned on April 11, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Ilka Decker?
Dr. Ilka Decker is a nephrologist in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Ilka Decker practice?
Dr. Decker practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. Dr. Decker's primary practice is University Hospital in Ann Arbor, Michigan. Dmand AI also links Dr. Decker to 1 hospital and 1 dialysis center.
What is Dr. Ilka Decker's office phone number?
The practice phone on file for Dr. Decker is (734) 936-4000.
What is Dr. Ilka Decker's medical license number?
Dr. Decker holds Michigan license 4301109103.
Which hospitals is Dr. Ilka Decker affiliated with?
Dr. Decker is affiliated with University Hospital. Dmand AI links Dr. Decker to 1 more hospital.
What medical group is Dr. Ilka Decker part of?
Dr. Decker is linked to University of Michigan Health.
Does Dr. Ilka Decker accept Medicare?
Yes. CMS data shows Dr. Decker billed Medicare for 498 services in 2024, and Dr. Decker accepts Medicare assignment.
Does Dr. Ilka Decker offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Decker as offering telehealth services.
How many Medicare patients does Dr. Ilka Decker see?
CMS counts 154 Medicare patients who saw Dr. Decker in 2024, with an average age of 69.
Show 7 more questionsShow fewer questions
What services does Dr. Ilka Decker bill to Medicare?
In 2024, Dr. Decker's most billed Medicare services were dialysis (90960), hospital inpatient care (99233) and medicare service (G2211).
Where did Dr. Ilka Decker go to medical school?
Dr. Decker graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 2013.
What drugs does Dr. Ilka Decker prescribe most?
In 2024 Medicare Part D data, Dr. Decker's most prescribed drugs by claims were Amlodipine Besylate, Potassium Citrate ER and Losartan Potassium.
Has Dr. Ilka Decker received payments from drug or device companies?
CMS Open Payments shows $45 in general payments to Dr. Decker from 2 companies from 2021 to 2022. The largest total came from Relypsa, Inc.
How long has Dr. Ilka Decker been practicing?
Dr. Decker graduated from medical school in 2013, 13 years ago.
Does Dr. Ilka Decker do research?
Dmand AI links 3 publications to Dr. Decker, published from 2014 to 2017.
Who does Dr. Ilka Decker publish with?
Dr. Decker's most frequent co-authors are Stacey Goodman, MD (2 shared papers), Daniel J. Lenihan, MD (2 shared papers) and Beatrice L. Concepcion, MD (1 shared paper).
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