PATRICK JASON MULROY D.O.
NPI 1619230810
Internal Medicine in Orange, CA
About Patrick Jason Mulroy D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PATRICK JASON MULROY D.O. (NPI 1619230810) is an individual internal medicine provider in Orange, California, licensed in California (20A13247) and active in the NPI registry since June 2012. He is enrolled in Medicare PECOS, maintains a secondary practice location in Los Alamitos, and is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Patrick Jason Mulroy D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Patrick Mulroy reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 250 clinicians in this Medicare group
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 840 clinicians in this Medicare group
Bellflower, CA 90706
- Reassigned Medicare billing, California enrollment
- 45 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 4
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 92868 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims 4
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
ORANGE, CA 92868
ORANGE, CA 92868
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 Patrick Mulroy's NPI number?
The NPI number for Patrick Mulroy is 1619230810. It was assigned to this individual provider in the NPPES registry on June 21, 2012.
Where is Patrick Mulroy located?
Patrick Mulroy practices at 101 The City Dr S, Orange, CA 92868. The listed phone number is (714) 456-8888.
What is Patrick Mulroy's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Patrick Mulroy enrolled in Medicare?
Yes. Patrick Mulroy is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Patrick Mulroy's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Patrick Mulroy reassigns Medicare benefits to 3 organizations: The Regents Of The University Of California-Irvine (Orange, CA), Pih Health Physicians (Orange, CA) and Pioneer Medical Group Inc. (Bellflower, CA). 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 Patrick Mulroy'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 Patrick Mulroy was last updated on June 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.
# Patrick Jason Mulroy, D.O. · NPI 1619230810
Internal Medicine physician in Orange, California. Individual provider, active in the CMS NPPES registry since June 21, 2012.
## Identity
- **NPI:** 1619230810 (Entity type: Individual)
- **Enumerated:** June 21, 2012
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 20A13247 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 101 THE CITY DR S, Orange, CA 92868-3201
- **Phone:** (714) 456-8888
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): The Regents Of The University Of California-Irvine (NPI 1154479723, Orange, CA); Pih Health Physicians (NPI 1083313589, Orange, CA); Pioneer Medical Group Inc. (NPI 1548303589, Bellflower, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2012
## Record status
- **NPPES last updated:** June 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1619230810) · Data from the CMS NPPES public registry.