DR. PATRICK DUNLEAVY FARRELL D.O.
NPI 1053765487
Emergency Medicine - Hospice and Palliative Medicine in Frederick, MD
About Dr. Patrick Dunleavy Farrell D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PATRICK DUNLEAVY FARRELL D.O. (NPI 1053765487) is an individual hospice and palliative medicine provider in Frederick, Maryland, licensed in Maryland (H0098041) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS.
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 (PECOS)
Dr. Patrick Dunleavy Farrell D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Patrick Farrell reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Frederick, MD 21701
- Reassigned Medicare billing, Maryland enrollment
- 245 clinicians in this Medicare group
Arlington, VA 22203
- Reassigned Medicare billing, Maryland enrollment
- 339 clinicians in this Medicare group
Arlington, VA 22203
- Reassigned Medicare billing, Maryland enrollment
- 668 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 12
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 21701 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FREDERICK, MD 21701
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 Farrell's NPI number?
The NPI number for Patrick Farrell is 1053765487. It was assigned to this individual provider in the NPPES registry on April 22, 2016.
Where is Patrick Farrell located?
Patrick Farrell practices at 501 W 7th St, Frederick, MD 21701. The listed phone number is (240) 215-6310.
What is Patrick Farrell's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207PH0002X.
Is Patrick Farrell enrolled in Medicare?
Yes. Patrick Farrell is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Patrick Farrell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Patrick Farrell reassigns Medicare benefits to 3 organizations: Frederick Health Medical Group LLC (Frederick, MD), Privia Care Center LLC (Arlington, VA) and Privia Medical Group, LLC (Arlington, VA). 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 Farrell'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 Farrell was last updated on October 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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.