Dr. Steven William McCornack, DO
- Medicare services, 2024
- 72
- Medicare patients, 2024
- 164
- Hospital affiliations
- 4
- Industry payments
- $23
- Medical groups
- 13
- Practice address
- 1375 N Main St, Lapeer, MI 48446
- Practice phone
- Call (810) 667-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
McLaren Lapeer Region Hospital
Lapeer, Michigan
Find Dr. McCornack'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. Steven William McCornack is an anesthesiologist in Lapeer, Michigan
Dr. McCornack practices at McLaren Lapeer Region Hospital in Lapeer, Michigan.
Dr. McCornack's NPI, 1669459772, was assigned on December 29, 2005. Dr. McCornack graduated from University of Michigan Homeopathic Medical School in 1983. Dr. McCornack holds Ohio license 34005869.
- NPI
- 1669459772NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204885718
- NPI enumeration date
- December 29, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (810) 667-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Steven William McCornack practices at McLaren Lapeer Region Hospital in Lapeer, Michigan
Dr. McCornack's primary practice is McLaren Lapeer Region Hospital, at 1375 N Main St, Lapeer, MI 48446 in Lapeer County. The practice phone is (810) 667-5500.
- McLaren Lapeer Region Hospital1375 N Main St, Lapeer, MI 48446 · Lapeer CountyPhone(810) 667-5500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Steven William McCornack is affiliated with 5 sites of care and 13 medical groups
Dr. McCornack's primary practice is McLaren Lapeer Region Hospital in Lapeer, Michigan. Dr. McCornack is also affiliated with McLaren Lapeer Region. The medical group on file is Anesthesia Associates of Ann Arbor (A4). Dmand AI also links Dr. McCornack to 3 more hospitals and 12 medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Steven William McCornack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McCornack practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| McLaren Lapeer Region Hospital | Available with a free account |
| +4 more sites and 12 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Steven William McCornack is one of 1,302 anesthesiologists in Michigan
Anesthesiology is Dr. McCornack's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. McCornack is licensed in Ohio.
Specialties and state licenses
- Anesthesiology, OhioPrimary
Anesthesiologists near Dr. McCornack
Counts of anesthesiologists 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. Steven William McCornack billed Medicare for 72 services in 2024
CMS data shows 72 Medicare services from Dr. McCornack across 4 procedure codes in 2024, for 164 Medicare patients. Medicare paid $3,546 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. McCornack's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 472024: 7253%
Dr. McCornack compared with the Michigan median for anesthesiologists, 2024
- Dr. McCornack
- Michigan median
- Medicare services
- 72vs 8919% below
- Medicare patients
- 164vs 1777% below
Medians across 1,283 anesthesiologists in Michigan with Dmand AI profiles that report each measure.
Dr. McCornack'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. McCornack and other anesthesiologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Steven William McCornack treated 164 Medicare patients in 2024, average age 75
CMS counts 164 Medicare patients who saw Dr. McCornack in 2024. The largest group is 65 to 74, with 62 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 20% are also on Medicaid. Their average risk score is 1.90, 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. McCornack's median patient age at 64, with 52% women.
Dr. McCornack's Medicare patients by age, 2024
Dr. McCornack's Medicare patients by sex, 2024
- Women8451%
- Men8049%
Chronic conditions among Dr. McCornack's Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Arthritis54%
- Diabetes40%
- Chronic kidney disease38%
- COPD37%
- Ischemic heart disease37%
- Mood disorders34%
Share of Medicare patients with each condition. A patient can have several.
Dr. McCornack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Steven William McCornack takes part in Medicare
Dr. McCornack 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. Steven William McCornack received $23 in industry payments in 2019
CMS Open Payments shows 1 general payment to Dr. McCornack from 1 drug or device company in 2019. Food and beverage make up the largest share, 100% of the total. Pacira Pharmaceuticals Incorporated paid the most, $23.
Companies that paid Dr. McCornack the most, 2019 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Steven William McCornack graduated from University of Michigan Homeopathic Medical School
Dr. McCornack graduated from University of Michigan Homeopathic Medical School in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Steven William McCornack'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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. Steven William McCornack
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What is Dr. Steven William McCornack's NPI number?
Dr. Steven William McCornack's NPI number is 1669459772. It was assigned on December 29, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Steven William McCornack?
Dr. Steven William McCornack is an anesthesiologist in Lapeer, Michigan. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Steven William McCornack practice?
Dr. McCornack practices at 1375 N Main St, Lapeer, MI 48446. Dr. McCornack's primary practice is McLaren Lapeer Region Hospital in Lapeer, Michigan. Dmand AI also links Dr. McCornack to 3 hospitals and 12 medical groups.
What is Dr. Steven William McCornack's office phone number?
The practice phone on file for Dr. McCornack is (810) 667-5500.
What is Dr. Steven William McCornack's medical license number?
Dr. McCornack holds Ohio license 34005869.
Which hospitals is Dr. Steven William McCornack affiliated with?
Dr. McCornack is affiliated with McLaren Lapeer Region. Dmand AI links Dr. McCornack to 3 more hospitals.
What medical group is Dr. Steven William McCornack part of?
Dr. McCornack is linked to Anesthesia Associates of Ann Arbor (A4). Dmand AI links Dr. McCornack to 12 more medical groups.
Does Dr. Steven William McCornack accept Medicare?
Yes. CMS data shows Dr. McCornack billed Medicare for 72 services in 2024, and Dr. McCornack accepts Medicare assignment.
How many Medicare patients does Dr. Steven William McCornack see?
CMS counts 164 Medicare patients who saw Dr. McCornack in 2024, with an average age of 75.
What services does Dr. Steven William McCornack bill to Medicare?
In 2024, Dr. McCornack's most billed Medicare services were anesthesia (00142), anesthesia (00731) and anesthesia (00811).
Show 3 more questionsShow fewer questions
Where did Dr. Steven William McCornack go to medical school?
Dr. McCornack graduated from University of Michigan Homeopathic Medical School in 1983.
Has Dr. Steven William McCornack received payments from drug or device companies?
CMS Open Payments shows $23 in general payments to Dr. McCornack from 1 company from 2019 to 2019. The largest total came from Pacira Pharmaceuticals Incorporated.
How long has Dr. Steven William McCornack been practicing?
Dr. McCornack graduated from medical school in 1983, 43 years ago.
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