JOSEPH MULLEN D.O.
NPI 1972778801
Psychiatry & Neurology - Psychiatry in Romeoville, IL
About Joseph Mullen D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOSEPH MULLEN D.O. (NPI 1972778801) is an individual psychiatry provider in Romeoville, Illinois, licensed in Illinois (036.122951) and active in the NPI registry since April 2008. He is enrolled in Medicare PECOS and is a graduate of Michigan State University College Of Human Medicine (1999).
NPPES Registry Identity
Specialties & Licenses
Accepted 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
Joseph Mullen D.o. 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
4Medicare enrollment records show Joseph Mullen reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
New Lenox, IL 60451
- Reassigned Medicare billing, Illinois enrollment
- 3 clinicians in this Medicare group
Downers Grove, IL 60515
- Reassigned Medicare billing, Illinois enrollment
- 1,061 clinicians in this Medicare group
Lombard, IL 60148
- Reassigned Medicare billing, Illinois enrollment
- 19 clinicians in this Medicare group
Channahon, IL 60410
- Reassigned Medicare billing, Illinois enrollment
- 207 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 60446 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.
ROMEOVILLE, IL 60446
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 Joseph Mullen's NPI number?
The NPI number for Joseph Mullen is 1972778801. It was assigned to this individual provider in the NPPES registry on April 22, 2008.
Where is Joseph Mullen located?
Joseph Mullen practices at 1239 Windham Pkwy, Romeoville, IL 60446. The listed phone number is (815) 942-6323.
What is Joseph Mullen's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Joseph Mullen enrolled in Medicare?
Yes. Joseph Mullen 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 Joseph Mullen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joseph Mullen reassigns Medicare benefits to 4 organizations: Comfort Psychiatric Services Inc (New Lenox, IL), Dupage Medical Group Ltd (Downers Grove, IL), Comprehensive Clinical Services PC (Lombard, IL) and Morris Hospital (Channahon, IL). 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 Joseph Mullen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Joseph Mullen accept?
Health plans from Oscar Health list Joseph Mullen 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.
When was this NPI record last updated?
The NPPES record for Joseph Mullen was last updated on May 24, 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.