Dr. Ian Frederick Slack, MD
- Part D claims, 2024
- 14
- Publications
- 6
- Hospital affiliations
- 1
- Industry payments
- $2,429
- Medical group
- 1
- 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. Slack's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Ian Frederick Slack is an allergist and immunologist in Ann Arbor, Michigan
Dr. Slack practices at University Hospital in Ann Arbor, Michigan.
Dr. Slack's NPI, 1295184075, was assigned on June 13, 2016. Dr. Slack holds Michigan license 4301504878.
- NPI
- 1295184075NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234520479
- NPI enumeration date
- June 13, 2016
- 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
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ian Frederick Slack practices at University Hospital in Ann Arbor, Michigan
Dr. Slack'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. Ian Frederick Slack is affiliated with 3 sites of care and 1 medical group
Dr. Slack's primary practice is University Hospital in Ann Arbor, Michigan. Dr. Slack is also affiliated with University Hospital. The medical group on file is University of Michigan Health. Dmand AI also links Dr. Slack to 1 more group practice or clinic, named with a free account. Dr. Slack's employer is on file too: a school & student health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ian Frederick Slack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Slack practices, 3 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 |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ian Frederick Slack is one of 118 allergists and immunologists in Michigan
Allergy and immunology is Dr. Slack's primary specialty in the NPI Registry, under taxonomy code 207K00000X. Dr. Slack is licensed in Michigan.
Specialties and state licenses
- Allergy and immunology, MichiganPrimary
Allergists and immunologists near Dr. Slack
Counts of allergists and immunologists 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. Ian Frederick Slack's patients have a median age of 16
Across all payers, Dmand AI patient panel data puts Dr. Slack's median patient age at 16, with 53% women.
Dr. Slack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 16
Patient panel by sex, all payers
- Women53%
- Men47%
Source: Dmand AI Patient Panel Data
Dr. Ian Frederick Slack wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Slack wrote 14 Medicare Part D claims. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $4,884 in total drug cost. In 2022, CMS named 12 claims across 1 drug.
Dr. Slack's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 122023: 118%
Drugs named by CMS: 1 in 2023, 1 in 2022.
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. Ian Frederick Slack offers telehealth to Medicare patients
Dr. Slack accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Slack as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ian Frederick Slack has 6 publications on record
Dmand AI links 6 papers to Dr. Slack, published from 2018 to 2025. 2020 was the busiest year, with 2. Dr. Slack has published most often in J Allergy Clin Immunol Glob. Dr. Slack's most frequent co-authors are Kelly Marie O'Shea, MD, Georgiana M. Sanders, MD and Juan Pablo Abonia, MD.
Dr. Slack's papers by year, 2018 to 2025
Dr. Slack's most frequent co-authors
- Kelly Marie O'Shea, MD2 shared papers
- Georgiana M. Sanders, MD2 shared papers
- Juan Pablo Abonia, MD1 shared paper
Recent publications by Dr. Slack
J Allergy Clin Immunol Glob
J Allergy Clin Immunol Pract
Curr Allergy Asthma Rep
See who Dr. Slack researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Slack works with, so you can find a warm path to the right allergists and immunologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ian Frederick Slack received $2,429 in industry payments from 2019 to 2024
CMS Open Payments shows 13 general payments to Dr. Slack from 7 drug and device companies from 2019 to 2024. Travel and lodging make up the largest share, 46% of the total. AstraZeneca Pharmaceuticals LP paid the most, $1,326.
General payments to Dr. Slack by program year, 2019 to 2024
General payments to Dr. Slack by kind, 2019 to 2024
- Travel and lodging$1,12946%
- Grants$70029%
- Food and beverage$51021%
- Education$894%
Companies that paid Dr. Slack the most, 2019 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ian Frederick Slack'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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. Ian Frederick Slack
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. Ian Frederick Slack's NPI number?
Dr. Ian Frederick Slack's NPI number is 1295184075. It was assigned on June 13, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Ian Frederick Slack?
Dr. Ian Frederick Slack is an allergist and immunologist in Ann Arbor, Michigan. The primary specialty in the NPI Registry is Allergy & Immunology Physician (taxonomy code 207K00000X).
Where does Dr. Ian Frederick Slack practice?
Dr. Slack practices at 1500 E Medical Center Dr, Ann Arbor, MI 48109. Dr. Slack's primary practice is University Hospital in Ann Arbor, Michigan. Dmand AI also links Dr. Slack to 1 group practice or clinic.
What is Dr. Ian Frederick Slack's office phone number?
The practice phone on file for Dr. Slack is (734) 936-4000.
What is Dr. Ian Frederick Slack's medical license number?
Dr. Slack holds Michigan license 4301504878.
Which hospitals is Dr. Ian Frederick Slack affiliated with?
Dr. Slack is affiliated with University Hospital.
What medical group is Dr. Ian Frederick Slack part of?
Dr. Slack is linked to University of Michigan Health.
Does Dr. Ian Frederick Slack accept Medicare?
Yes. CMS lists Dr. Slack as accepting Medicare assignment.
Does Dr. Ian Frederick Slack offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Slack as offering telehealth services.
What drugs does Dr. Ian Frederick Slack prescribe most?
In 2023 Medicare Part D data, Dr. Slack's most prescribed drugs by claims were Breo Ellipta.
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Has Dr. Ian Frederick Slack received payments from drug or device companies?
CMS Open Payments shows $2,429 in general payments to Dr. Slack from 7 companies from 2019 to 2024. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Ian Frederick Slack been practicing?
Dr. Slack graduated from medical school in 2016, 10 years ago.
Does Dr. Ian Frederick Slack do research?
Dmand AI links 6 publications to Dr. Slack, published from 2018 to 2025.
Who does Dr. Ian Frederick Slack publish with?
Dr. Slack's most frequent co-authors are Kelly Marie O'Shea, MD (2 shared papers), Georgiana M. Sanders, MD (2 shared papers) and Juan Pablo Abonia, MD (1 shared paper).
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