West J Emerg Med
Clinical CompetenceCurriculumEducation, Medical, Graduate
Dr. Ian Walker, DO
NPI1427444843PAC ID1052612629
- Medicare services, 2024
- 505
- Medicare patients, 2024
- 302
- Part D claims, 2024
- 102
- Publications
- 2
- Hospital affiliations
- 2
- Practice address
- 6071 W Outer Drive, Detroit, MI 48235
- Practice phone
- Call (313) 966-3300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Walker's professional email, personal email and mobile number
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Dr. Ian Walker is an emergency medicine physician in Detroit, Michigan
Dr. Walker practices at DMC Sinai-Grace Hospital in Detroit, Michigan, part of Tenet Healthcare.
Dr. Walker's NPI, 1427444843, was assigned on April 13, 2015. Dr. Walker holds Michigan license 5101021923.
NPI and contact details
- NPI
- 1427444843NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1052612629
- NPI enumeration date
- April 13, 2015
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (313) 966-3300
- 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. Ian Walker practices at DMC Sinai-Grace Hospital in Detroit, Michigan
Dr. Walker's primary practice is DMC Sinai-Grace Hospital, at 6071 W Outer Drive, Detroit, MI 48235 in Wayne County. The practice phone is (313) 966-3300.
- DMC Sinai-Grace Hospital6071 W Outer Drive, Detroit, MI 48235 · Wayne CountyPhone(313) 966-3300
Source: Dmand AI Affiliation Data
Dr. Ian Walker is affiliated with 2 sites of care and 1 medical group
Dr. Walker's primary practice is DMC Sinai-Grace Hospital in Detroit, Michigan, part of Tenet Healthcare. Dr. Walker is also affiliated with DMC Huron Valley-Sinai Hospital. The medical group on file is Medical Center Emergency Services.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ian Walker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| DMC Sinai-Grace Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ian Walker is one of 2,045 emergency medicine physicians in Michigan
Emergency medicine is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Walker is licensed in Michigan.
Specialties and state licenses
- Emergency medicine, MichiganPrimary
Emergency medicine physicians near Dr. Walker
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
2,045emergency medicine physicians in Michigan265emergency medicine physicians in Detroit29emergency medicine physicians at DMC Sinai-Grace Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ian Walker billed Medicare for 505 services in 2024
CMS data shows 505 Medicare services from Dr. Walker across 4 procedure codes in 2024, for 302 Medicare patients. Medicare paid $41,672 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024505
Medicare patients302
Paid by Medicare$41,672
Procedure codes4
Dr. Walker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3002024: 3052%
- Tests and treatments
- 2023: 1852024: 2008%
Dr. Walker compared with the Michigan median for emergency medicine physicians, 2024
- Dr. Walker
- Michigan median
- Medicare services
- 505vs 2342.2 times
- Medicare patients
- 302vs 21441% above
- Part D claims
- 29vs 4637% below
Medians across 1,937 emergency medicine physicians in Michigan with Dmand AI profiles that report each measure.
Dr. Walker'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. Walker?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Walker and other emergency medicine physicians in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ian Walker treated 302 Medicare patients in 2024, average age 73
CMS counts 302 Medicare patients who saw Dr. Walker in 2024. The largest group is 65 to 74, with 95 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 38% are also on Medicaid. Their average risk score is 2.27, 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. Walker's median patient age at 42, with 54% women.
Medicare patients, 2024302
Average age73
Average risk score2.27
Also on Medicaid38%
Dr. Walker's Medicare patients by age, 2024
Dr. Walker's Medicare patients by sex, 2024
- Women17859%
- Men12441%
Chronic conditions among Dr. Walker's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Ischemic heart disease50%
- Diabetes45%
- Heart failure44%
- Chronic kidney disease42%
- Anxiety41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Walker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 42
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ian Walker wrote 102 Medicare Part D claims in 2024
In 2024, Dr. Walker wrote 102 Medicare Part D claims for 61 patients. 91% of them were for generic drugs. CMS names the drug for 29 of them, across 2 drugs with 11 or more claims each, at $90 in total drug cost. In 2023, CMS named 29 claims across 2 drugs.
Part D claims, 2024102
Drugs named by CMS2
Total drug cost$90
Part D patients61
Dr. Walker's Part D claims by kind of drug, 2024
- Generic93 claims91%
- Brand-name and other9 claims9%
Dr. Walker'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. Walker's Part D claims, 2024
- Antibiotics25%25 of 102 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: 292024: 29No change
Drugs named by CMS: 2 in 2024, 2 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
How Dr. Ian Walker takes part in Medicare
Dr. Walker accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Ian Walker has 2 publications on record
Dmand AI links 2 papers to Dr. Walker, published from 2017 to 2018. Dr. Walker's most frequent co-authors are Jacob Lee Arnold, MD, Joshua James McKamie, MD and Jennifer M. Tango, MD.
Papers2
Years published2017 to 2018
Dr. Walker's most frequent co-authors
- Jacob Lee Arnold, MD1 shared paper
- Joshua James McKamie, MD1 shared paper
- Jennifer M. Tango, MD1 shared paper
Recent publications by Dr. Walker
See who Dr. Walker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Walker works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ian Walker received $144 in industry payments from 2024 to 2025
CMS Open Payments shows 8 general payments to Dr. Walker from 5 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Biogen, Inc. paid the most, $62.
General payments to Dr. Walker by program year, 2024 to 2025
Companies that paid Dr. Walker the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ian Walker'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) |
| 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 Walker
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 Walker's NPI number?
Dr. Ian Walker's NPI number is 1427444843. It was assigned on April 13, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Ian Walker?
Dr. Ian Walker is an emergency medicine physician in Detroit, Michigan. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Ian Walker practice?
Dr. Walker practices at 6071 W Outer Drive, Detroit, MI 48235. Dr. Walker's primary practice is DMC Sinai-Grace Hospital in Detroit, Michigan, part of Tenet Healthcare.
What is Dr. Ian Walker's office phone number?
The practice phone on file for Dr. Walker is (313) 966-3300.
What is Dr. Ian Walker's medical license number?
Dr. Walker holds Michigan license 5101021923.
Which hospitals is Dr. Ian Walker affiliated with?
Dr. Walker practices at DMC Sinai-Grace Hospital in Detroit, Michigan. Dr. Walker is also affiliated with DMC Huron Valley-Sinai Hospital.
What medical group is Dr. Ian Walker part of?
Dr. Walker is linked to Medical Center Emergency Services.
Does Dr. Ian Walker accept Medicare?
Yes. CMS data shows Dr. Walker billed Medicare for 505 services in 2024, and Dr. Walker accepts Medicare assignment.
How many Medicare patients does Dr. Ian Walker see?
CMS counts 302 Medicare patients who saw Dr. Walker in 2024, with an average age of 73.
What services does Dr. Ian Walker bill to Medicare?
In 2024, Dr. Walker's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Show 5 more questionsShow fewer questions
What drugs does Dr. Ian Walker prescribe most?
In 2024 Medicare Part D data, Dr. Walker's most prescribed drugs by claims were Ibuprofen and Cephalexin.
Has Dr. Ian Walker received payments from drug or device companies?
CMS Open Payments shows $144 in general payments to Dr. Walker from 5 companies from 2024 to 2025. The largest total came from Biogen, Inc.
How long has Dr. Ian Walker been practicing?
Dr. Walker graduated from medical school in 2015, 11 years ago.
Does Dr. Ian Walker do research?
Dmand AI links 2 publications to Dr. Walker, published from 2017 to 2018.
Who does Dr. Ian Walker publish with?
Dr. Walker's most frequent co-authors are Jacob Lee Arnold, MD (1 shared paper), Joshua James McKamie, MD (1 shared paper) and Jennifer M. Tango, MD (1 shared paper).
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