WILLIAM C. O'MEALLY M.D.
NPI 1992825582
Family Medicine in Milwaukee, WI
About William C. O'meally M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM C. O'MEALLY M.D. (NPI 1992825582) is an individual family medicine provider in Milwaukee, Wisconsin, licensed in Wisconsin (39590) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS and is a graduate of University Of Maryland School Of Medicine (1996).
NPPES Registry Identity
Specialties & Licenses 2
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
William C. O'meally 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.
Medicare Billing Reassignments
2Medicare enrollment records show William O'meally reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Gaithersburg, MD 20879
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- Also billed through NPI 1235313156 (Maryland)
- 59 clinicians in this Medicare group
Baltimore, MD 21201
- Reassigned Medicare billing, Maryland enrollment
- 234 clinicians in this Medicare group
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 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53207 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MILWAUKEE, WI 53207
MILWAUKEE, WI 53207
MILWAUKEE, WI 53207
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 William O'meally's NPI number?
The NPI number for William O'meally is 1992825582. It was assigned to this individual provider in the NPPES registry on March 29, 2007.
Where is William O'meally located?
William O'meally practices at 5007 S Howell Ave, Milwaukee, WI 53207. The listed phone number is (414) 483-7777.
What is William O'meally's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is William O'meally enrolled in Medicare?
Yes. William O'meally 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 William O'meally's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William O'meally reassigns Medicare benefits to 2 organizations: American Current Care PA (Gaithersburg, MD) and University Of Maryland Emergency Medicine Associates, PA (Baltimore, MD). 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 William O'meally's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for William O'meally was last updated on May 31, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# William C. O'meally, M.D. · NPI 1992825582
Family Medicine physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since March 29, 2007.
## Identity
- **NPI:** 1992825582 (Entity type: Individual)
- **Enumerated:** March 29, 2007
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 39590 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 5007 S HOWELL AVE, Milwaukee, WI 53207-6157
- **Phone:** (414) 483-7777 · **Fax:** (414) 483-7914
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): American Current Care PA (NPI 1164971461, Gaithersburg, MD); University Of Maryland Emergency Medicine Associates, PA (NPI 1811704208, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Maryland School Of Medicine, class of 1996
## Record status
- **NPPES last updated:** May 31, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1992825582) · Data from the CMS NPPES public registry.