Dr. Michael Peter O'Neil II, MD
- Medicare services, 2024
- 163
- Medicare patients, 2024
- 186
- Hospital affiliations
- 2
- Industry payments
- $789
- Medical groups
- 2
- Practice address
- 214 East 23rd Street, Cheyenne, WY 82001
- Practice phone
- Call (307) 633-2273
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. O'Neil'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. Michael Peter O'Neil II is an anesthesiologist in Cheyenne, Wyoming
Dr. O'Neil practices at Cheyenne Regional Medical Center in Cheyenne, Wyoming, part of Laramie County Shooting Sports Complex.
Dr. O'Neil's NPI, 1336160068, was assigned on July 21, 2006. Dr. O'Neil graduated from University of Washington School of Medicine in 1993. Dr. O'Neil holds Montana license 11143.
- NPI
- 1336160068NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527970383
- NPI enumeration date
- July 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (307) 633-2273
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Peter O'Neil II practices at Cheyenne Regional Medical Center in Cheyenne, Wyoming
Dr. O'Neil's primary practice is Cheyenne Regional Medical Center, at 214 East 23rd Street, Cheyenne, WY 82001 in Laramie County. The practice phone is (307) 633-2273.
- Cheyenne Regional Medical Center214 East 23rd Street, Cheyenne, WY 82001 · Laramie CountyPhone(307) 633-2273
Source: Dmand AI Affiliation Data
Dr. Michael Peter O'Neil II is affiliated with 2 sites of care and 2 medical groups
Dr. O'Neil's primary practice is Cheyenne Regional Medical Center in Cheyenne, Wyoming, part of Laramie County Shooting Sports Complex. Dr. O'Neil is also affiliated with UCHealth Medical Center of the Rockies. The medical group on file is Anesthesia Consultants of Cheyenne, LLC. Dmand AI also links Dr. O'Neil to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael Peter O'Neil II's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Neil practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cheyenne Regional Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Laramie County Shooting Sports Complex and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Michael Peter O'Neil II is one of 76 anesthesiologists in Wyoming
Anesthesiology is Dr. O'Neil's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. O'Neil is licensed in Montana.
Specialties and state licenses
- Anesthesiology, MontanaPrimary
Anesthesiologists near Dr. O'Neil
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. Michael Peter O'Neil II billed Medicare for 163 services in 2024
CMS data shows 163 Medicare services from Dr. O'Neil across 6 procedure codes in 2024, for 186 Medicare patients. Medicare paid $25,584 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. O'Neil's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1192024: 8727%
- Surgery
- 2023: 792024: 5827%
- Imaging
- 2023: 212024: 1814%
Dr. O'Neil compared with the Wyoming median for anesthesiologists, 2024
- Dr. O'Neil
- Wyoming median
- Medicare services
- 163vs 9473% above
- Medicare patients
- 186vs 15818% above
Medians across 83 anesthesiologists in Wyoming with Dmand AI profiles that report each measure.
Dr. O'Neil'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. O'Neil and other anesthesiologists in Wyoming.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Peter O'Neil II treated 186 Medicare patients in 2024, average age 77
CMS counts 186 Medicare patients who saw Dr. O'Neil in 2024. The largest group is 75 to 84, with 87 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.79, 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. O'Neil's median patient age at 69, with 49% women.
Dr. O'Neil's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. O'Neil's Medicare patients by sex, 2024
- Women8847%
- Men9853%
Chronic conditions among Dr. O'Neil's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease63%
- Atrial fibrillation57%
- Heart failure54%
- Arthritis53%
- Chronic kidney disease42%
- Diabetes30%
Share of Medicare patients with each condition. A patient can have several.
Dr. O'Neil's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Michael Peter O'Neil II takes part in Medicare
Dr. O'Neil accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Upper gastrointestinal (GI) endoscopy for acid reflux: 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. Michael Peter O'Neil II received $789 in industry payments from 2016 to 2025
CMS Open Payments shows 21 general payments to Dr. O'Neil from 2 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 76% of the total. Edwards Lifesciences Corporation paid the most, $771.
General payments to Dr. O'Neil by program year, 2016 to 2025
General payments to Dr. O'Neil by kind, 2016 to 2025
- Food and beverage$60376%
- Travel and lodging$18724%
Companies that paid Dr. O'Neil 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. Michael Peter O'Neil II graduated from University of Washington School of Medicine
Dr. O'Neil graduated from University of Washington School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael Peter O'Neil II'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) |
| 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. Michael Peter O'Neil II
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. Michael Peter O'Neil II's NPI number?
Dr. Michael Peter O'Neil II's NPI number is 1336160068. It was assigned on July 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Peter O'Neil II?
Dr. Michael Peter O'Neil II is an anesthesiologist in Cheyenne, Wyoming. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Michael Peter O'Neil II practice?
Dr. O'Neil practices at 214 East 23rd Street, Cheyenne, WY 82001. Dr. O'Neil's primary practice is Cheyenne Regional Medical Center in Cheyenne, Wyoming, part of Laramie County Shooting Sports Complex. Dmand AI also links Dr. O'Neil to 1 medical group.
What is Dr. Michael Peter O'Neil II's office phone number?
The practice phone on file for Dr. O'Neil is (307) 633-2273.
What is Dr. Michael Peter O'Neil II's medical license number?
Dr. O'Neil holds Montana license 11143.
Which hospitals is Dr. Michael Peter O'Neil II affiliated with?
Dr. O'Neil practices at Cheyenne Regional Medical Center in Cheyenne, Wyoming. Dr. O'Neil is also affiliated with UCHealth Medical Center of the Rockies.
What medical group is Dr. Michael Peter O'Neil II part of?
Dr. O'Neil is linked to Anesthesia Consultants of Cheyenne, LLC. Dmand AI links Dr. O'Neil to 1 more medical group.
Does Dr. Michael Peter O'Neil II accept Medicare?
Yes. CMS data shows Dr. O'Neil billed Medicare for 163 services in 2024, and Dr. O'Neil accepts Medicare assignment.
How many Medicare patients does Dr. Michael Peter O'Neil II see?
CMS counts 186 Medicare patients who saw Dr. O'Neil in 2024, with an average age of 77.
What services does Dr. Michael Peter O'Neil II bill to Medicare?
In 2024, Dr. O'Neil's most billed Medicare services were anesthesia (00560), surgery: heart and blood vessels (36620) and anesthesia (01922).
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Where did Dr. Michael Peter O'Neil II go to medical school?
Dr. O'Neil graduated from University of Washington School of Medicine in 1993.
Has Dr. Michael Peter O'Neil II received payments from drug or device companies?
CMS Open Payments shows $789 in general payments to Dr. O'Neil from 2 companies from 2016 to 2025. The largest total came from Edwards Lifesciences Corporation.
How long has Dr. Michael Peter O'Neil II been practicing?
Dr. O'Neil graduated from medical school in 1993, 33 years ago.
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