Dr. Stephen Douglas Cahill, DO
- Medicare services, 2024
- 496
- Medicare patients, 2024
- 237
- Part D claims, 2024
- 93
- Hospital affiliations
- 2
- Industry payments
- $12,329
- Practice address
- 1000 Harrington St, Mount Clemens, MI 48043
- Practice phone
- Call (586) 493-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
McLaren Macomb Hospital
Mount Clemens, Michigan
Find Dr. Cahill'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. Stephen Douglas Cahill is a general surgeon in Mount Clemens, Michigan
Dr. Cahill practices at McLaren Macomb Hospital in Mount Clemens, Michigan.
Dr. Cahill's NPI, 1295725620, was assigned on October 26, 2005. Dr. Cahill graduated from Philadelphia College of Osteopathic Medicine in 1981. Dr. Cahill holds Michigan license 5101008358.
- NPI
- 1295725620NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981692415
- NPI enumeration date
- October 26, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (586) 493-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen Douglas Cahill practices at McLaren Macomb Hospital in Mount Clemens, Michigan
Dr. Cahill's primary practice is McLaren Macomb Hospital, at 1000 Harrington St, Mount Clemens, MI 48043 in Macomb County. The practice phone is (586) 493-8000.
- McLaren Macomb Hospital1000 Harrington St, Mount Clemens, MI 48043 · Macomb CountyPhone(586) 493-8000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stephen Douglas Cahill is affiliated with 6 sites of care and 2 medical groups
Dr. Cahill's primary practice is McLaren Macomb Hospital in Mount Clemens, Michigan. Dr. Cahill is also affiliated with McLaren Macomb. The medical group on file is McLaren Macomb Medical Center. Dmand AI also links Dr. Cahill to 1 more hospital, 2 group practices and clinics, 1 physician office and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Stephen Douglas Cahill's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cahill practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| McLaren Macomb Hospital | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen Douglas Cahill is one of 1,095 general surgeons in Michigan
Surgery is Dr. Cahill's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Cahill is licensed in Michigan.
Specialties and state licenses
- Surgery, MichiganPrimary
General surgeons near Dr. Cahill
Counts of general surgeons 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. Stephen Douglas Cahill billed Medicare for 496 services in 2024
CMS data shows 496 Medicare services from Dr. Cahill across 10 procedure codes in 2024, for 237 Medicare patients. Medicare paid $40,183 for them.
Dr. Cahill's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5442024: 48411%
- Imaging
- 2023: 242024: 1250%
Where Dr. Cahill's Medicare services took place, 2024
- In an office29259%
- In a facility20441%
Dr. Cahill compared with the Michigan median for general surgeons, 2024
- Dr. Cahill
- Michigan median
- Medicare services
- 496vs 1263.9 times
- Medicare patients
- 237vs 1072.2 times
- Part D claims
- 13vs 3057% below
Medians across 1,046 general surgeons in Michigan with Dmand AI profiles that report each measure.
Dr. Cahill'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. Cahill and other general surgeons in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen Douglas Cahill treated 237 Medicare patients in 2024, average age 74
CMS counts 237 Medicare patients who saw Dr. Cahill in 2024. The largest group is 65 to 74, with 95 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.63, 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. Cahill's median patient age at 67, with 67% women.
Dr. Cahill's Medicare patients by age, 2024
Dr. Cahill's Medicare patients by sex, 2024
- Women16871%
- Men6929%
Chronic conditions among Dr. Cahill's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Cancer47%
- Diabetes41%
- Ischemic heart disease40%
- Anxiety36%
- Mood disorders33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Cahill's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women67%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen Douglas Cahill wrote 93 Medicare Part D claims in 2024
In 2024, Dr. Cahill wrote 93 Medicare Part D claims for 50 patients. 98% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $24 in total drug cost. In 2019, CMS named 11 claims across 1 drug.
Dr. Cahill's Part D claims by kind of drug, 2024
- Generic91 claims98%
- Brand-name and other2 claims2%
Dr. Cahill'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.
Drug classes CMS tracks in Dr. Cahill's Part D claims, 2024
- Opioids17%16 of 93 claims
- Antibiotics33%31 of 93 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, 2019 to 2023
- 2019
- 2023
- Claims for drugs CMS names
- 2019: 112023: 1318%
Drugs named by CMS: 1 in 2023, 1 in 2019.
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. Stephen Douglas Cahill ranks in the 77th percentile for mastectomy in Medicare
Dr. Cahill accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 19 procedures of mastectomy by Dr. Cahill, more than 77% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Cahill ranks in Medicare procedure volume
- Mastectomy
- 77th percentile19 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Stephen Douglas Cahill received $12,329 in industry payments from 2016 to 2025
CMS Open Payments shows 105 general payments to Dr. Cahill from 37 drug and device companies from 2016 to 2025. Education make up the largest share, 66% of the total. Intuitive Surgical, Inc. paid the most, $8,663.
General payments to Dr. Cahill by program year, 2016 to 2025
General payments to Dr. Cahill by kind, 2016 to 2025
- Education$8,14066%
- Food and beverage$3,23726%
- Travel and lodging$8527%
- Consulting fees$1001%
Companies that paid Dr. Cahill the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen Douglas Cahill graduated from Philadelphia College of Osteopathic Medicine
Dr. Cahill graduated from Philadelphia College of Osteopathic Medicine in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen Douglas Cahill'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 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)Doctors and Clinicians Utilization Data (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. Stephen Douglas Cahill
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. Stephen Douglas Cahill's NPI number?
Dr. Stephen Douglas Cahill's NPI number is 1295725620. It was assigned on October 26, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen Douglas Cahill?
Dr. Stephen Douglas Cahill is a general surgeon in Mount Clemens, Michigan. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Stephen Douglas Cahill practice?
Dr. Cahill practices at 1000 Harrington St, Mount Clemens, MI 48043. Dr. Cahill's primary practice is McLaren Macomb Hospital in Mount Clemens, Michigan. Dmand AI also links Dr. Cahill to 1 hospital, 2 group practices and clinics, 1 physician office and 1 medical group.
What is Dr. Stephen Douglas Cahill's office phone number?
The practice phone on file for Dr. Cahill is (586) 493-8000.
What is Dr. Stephen Douglas Cahill's medical license number?
Dr. Cahill holds Michigan license 5101008358.
Which hospitals is Dr. Stephen Douglas Cahill affiliated with?
Dr. Cahill is affiliated with McLaren Macomb. Dmand AI links Dr. Cahill to 1 more hospital.
What medical group is Dr. Stephen Douglas Cahill part of?
Dr. Cahill is linked to McLaren Macomb Medical Center. Dmand AI links Dr. Cahill to 1 more medical group.
Does Dr. Stephen Douglas Cahill accept Medicare?
Yes. CMS data shows Dr. Cahill billed Medicare for 496 services in 2024, and Dr. Cahill accepts Medicare assignment.
How many Medicare patients does Dr. Stephen Douglas Cahill see?
CMS counts 237 Medicare patients who saw Dr. Cahill in 2024, with an average age of 74.
What services does Dr. Stephen Douglas Cahill bill to Medicare?
In 2024, Dr. Cahill's most billed Medicare services were office visit, established patient (99213), hospital inpatient care (99232) and hospital inpatient care (99223).
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Where did Dr. Stephen Douglas Cahill go to medical school?
Dr. Cahill graduated from Philadelphia College of Osteopathic Medicine in 1981.
What drugs does Dr. Stephen Douglas Cahill prescribe most?
In 2023 Medicare Part D data, Dr. Cahill's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Stephen Douglas Cahill received payments from drug or device companies?
CMS Open Payments shows $12,329 in general payments to Dr. Cahill from 37 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Stephen Douglas Cahill been practicing?
Dr. Cahill graduated from medical school in 1981, 45 years ago.
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