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MICHAEL J O'NEILL M.D.
NPI 1083655245
Psychiatry & Neurology - Psychiatry in Keshena, WI

Active since June 09, 2006PECOS EnrolledAccepts Medicare Assignment
W3275 WOLF RIVER ROAD, KESHENA, WI 54135(715) 799-3361(715) 799-3099 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Michael J O'neill M.d. NPPES

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

MICHAEL J O'NEILL M.D. (NPI 1083655245) is an individual psychiatry provider in Keshena, Wisconsin, licensed in Wisconsin (18117-020) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with St Vincent Hospital, and is a graduate of University Of Chicago, Pritzker School Of Medicine (1969).

NPPES Registry Identity

NPI1083655245
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameMICHAEL J O'NEILLCredential: M.D.
Location AddressW3275 WOLF RIVER ROADKeshena, WI 54135
Mailing AddressPo Box 970Keshena, WI 54135-0970 · (715) 799-3361 · Fax (715) 799-3099
Phone(715) 799-3361
Fax(715) 799-3099
Sole ProprietorNo
Medical School CMSUniversity Of Chicago, Pritzker School Of MedicineGraduated 1969
Enumeration DateJune 9, 2006
Last NPPES UpdateMarch 7, 2023
✔ NPI 1083655245 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in WI · 18117-020
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
W3275 WOLF RIVER ROAD, Keshena, WI 54135
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Other Identifiers 1

Medicaid30979000WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Security Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Michael J O'neill 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 ID2769430297
PECOS Enrollment IDI20050111000490
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Michael O'neill reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Menominee Indian Tribe Of Wisconsin
Same address
Family Medicine
W3275 WOLF RIVER ROAD
Keshena, WI 54135
  • Reassigned Medicare billing, Wisconsin enrollment
  • 25 clinicians in this Medicare group
NPI 1568404721 (715) 799-3361
Oneida Nation
36 mi
Clinic/Center
525 AIRPORT DR
Oneida, WI 54155
  • Reassigned Medicare billing, Wisconsin enrollment
  • 78 clinicians in this Medicare group
NPI 1740278308 (920) 869-2711

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

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.

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
13 services13 patients

Hospital Affiliations CMS Care Compare

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

St Vincent Hospital

Acute Care Hospitals · Green Bay, WI
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number520075
Location835 S Van Buren StGreen Bay, WI 54301 · Brown County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 54135 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$163.24 typical visit price
range $53.90 – $163.24
Typical copayment $40.81 (range $13.47 – $40.81)
Most-billed visit code 99205
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

PETER C. KEENAN M.D.
Family Medicine
W3275 WOLF RIVER ROAD
KESHENA, WI 54135
Menominee County (715) 799-3361
SUE C WESO APNP
Nurse Practitioner (Family)
W3275 WOLF RIVER ROAD
KESHENA, WI 54135
Menominee County (715) 799-3361
LEAH ROUSE
Psychologist
W3275 WOLF RIVER ROAD
KESHENA, WI 54135
Menominee County (715) 799-5451
MENOMINEE INDIAN TRIBE OF WISCONSIN
Clinic/Center (Mental Health (Including Community Mental Health Center))
W3275 WOLF RIVER ROAD
KESHENA, WI 54135
Menominee County (715) 799-3361
DR. THOMAS WALCZYK DDS
Dentist (General Practice)
W3275 WOLF RIVER ROAD, MENOMINEE TRIBAL CLINIC
KESHENA, WI 54135
Menominee County (715) 799-3361
MENOMINEE INDIAN TRIBE OF WISCONSIN
Clinic/Center (Family Planning, Non-Surgical)
W3275 WOLF RIVER ROAD
KESHENA, WI 54135
Menominee County (715) 799-3361
DR. ROBERT P CHELBERG O.D.
Optometrist
W3275 WOLF RIVER ROAD
KESHENA, WI 54135
Menominee County (715) 799-5482
AMY J. SLAGLE M.D.
Family Medicine
W3275 WOLF RIVER ROAD
KESHENA, WI 54135
Menominee County (715) 799-3361

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'neill's NPI number?

The NPI number for Michael O'neill is 1083655245. It was assigned to this individual provider in the NPPES registry on June 9, 2006.

Where is Michael O'neill located?

Michael O'neill practices at W3275 Wolf River Road, Keshena, WI 54135. The listed phone number is (715) 799-3361.

What is Michael O'neill's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Michael O'neill enrolled in Medicare?

Yes. Michael O'neill 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.

Which organizations bill Medicare for Michael O'neill's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael O'neill reassigns Medicare benefits to 2 organizations: Menominee Indian Tribe Of Wisconsin (Keshena, WI) and Oneida Nation (Oneida, WI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael O'neill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael O'neill accept?

Health plans from Anthem Blue Cross and Blue Shield and Security Health Plan list Michael O'neill 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'neill affiliated with any hospitals?

According to CMS data, Michael O'neill is affiliated with St Vincent Hospital.

When was this NPI record last updated?

The NPPES record for Michael O'neill was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.