MICHAEL PETER O'NEIL II M.D.
NPI 1336160068
Anesthesiology in Billings, MT

Active since July 21, 2006PECOS EnrolledAccepts Medicare Assignment
2800 10TH AVE N, BILLINGS, MT 59101(406) 896-2447 Get Directions Write a Review

NPPES record last updated: January 29, 2020. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 29, 2020, Jan 30, 2019 (2 updates tracked since 2019).

About Michael Peter O'neil Ii M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MICHAEL PETER O'NEIL II M.D. (NPI 1336160068) is an individual anesthesiology provider in Billings, Montana, licensed in Montana (11143) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Cheyenne Regional Medical Center, and is a graduate of University Of Washington School Of Medicine (1993).

NPPES Registry Identity

NPI1336160068
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameMICHAEL PETER O'NEIL IICredential: M.D.
Location Address2800 10TH AVE NBillings, MT 59101-0703
Mailing AddressPo Box 1155Billings, MT 59103-1155 · (406) 248-3290 · Fax (406) 248-3346
Sole ProprietorNo
Medical School CMSUniversity Of Washington School Of MedicineGraduated 1993
Enumeration DateJuly 21, 2006
Last NPPES UpdateJanuary 29, 20202 updates tracked since enumeration
NPI 1336160068 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License Licensed in MT · 11143
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
2800 10TH AVE N, Billings, MT 59101

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Michael Peter O'neil Ii M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8527970383
PECOS Enrollment IDI20200921000272, I20260408003696
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for procedure on heart and large blood vessels 00560
Anesthesia for heart and large blood vessel procedures involves using medications to block sensation, ensuring you don't feel pain during surgery. It can be general (you're asleep) or regional (part of your body is numbed). It helps ensure comfort and safety throughout the operation.
44 services44 patients
Insertion of artery tube for blood sampling or infusion through skin 36620
This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.
42 services40 patients
Anesthesia for x-ray or radiation therapy 01922
Anesthesia for x-ray or radiation therapy involves administering medication to help you relax or sleep during the procedure. It's used to ensure comfort, minimize movement, and reduce anxiety. The type of anesthesia used depends on the procedure and patient's health.
30 services30 patients
Ultrasonic guidance for blood vessel access 76937
Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.
18 services18 patients
Insertion of non-tunneled central venous tube for infusion (5 years or older) 36556
This procedure involves placing a thin tube into a large vein, usually in the neck or chest, to administer medication or fluids. It's done under local anesthesia to minimize discomfort. It's a standard, safe procedure for individuals aged 5 and above.
16 services16 patients
Anesthesia for x-ray on artery of brain, heart, or chest 01926
Anesthesia is given before an x-ray of the brain, heart, or chest artery to ensure comfort and stillness. It helps to eliminate discomfort or pain during the procedure. It's administered by a trained professional, ensuring a safe and smooth procedure.
13 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Cheyenne Regional Medical Center

Acute Care Hospitals · Cheyenne, WY
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number530014
Location214 East 23rd StreetCheyenne, WY 82001 · Laramie County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner (Family)
2800 10TH AVE N
BILLINGS, MT 59101
Hospitalist
2800 10TH AVE N
BILLINGS, MT 59101
Pharmacy (Community/Retail Pharmacy)
2800 10TH AVE N
BILLINGS, MT 59101
Nursing Facility/Intermediate Care Facility
2800 10TH AVE N
BILLINGS, MT 59101
Radiology (Diagnostic Radiology)
2800 10TH AVE N
BILLINGS, MT 59101
Nurse Practitioner (Psychiatric/Mental Health)
2800 10TH AVE N
BILLINGS, MT 59101
Speech-Language Pathologist
2800 10TH AVE N
BILLINGS, MT 59101
Registered Nurse (Critical Care Medicine)
2800 10TH AVE N
BILLINGS, MT 59101

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Michael O'neil's NPI number?

The NPI number for Michael O'neil is 1336160068. It was assigned to this individual provider in the NPPES registry on July 21, 2006.

Where is Michael O'neil located?

Michael O'neil practices at 2800 10th Ave N, Billings, MT 59101. The listed phone number is (406) 896-2447.

What is Michael O'neil's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Michael O'neil enrolled in Medicare?

Yes. Michael O'neil is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Michael O'neil accept?

Health plans from Mountain Health CO-OP list Michael O'neil as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Michael O'neil affiliated with any hospitals?

According to CMS data, Michael O'neil is affiliated with Cheyenne Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Michael O'neil was last updated on January 29, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.