PHILIP G JANICAK M.D.
NPI 1891993754
Psychiatry & Neurology - Psychiatry in Naperville, IL
About Philip G Janicak M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PHILIP G JANICAK M.D. (NPI 1891993754) is an individual psychiatry provider in Naperville, Illinois, licensed in Illinois (036-050070) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (1973).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Philip G Janicak 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 Philip Janicak reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Naperville, IL 60563
- Reassigned Medicare billing, Illinois enrollment
- 561 clinicians in this Medicare group
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60563 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.
Other Providers at the Same Location NPPES 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NAPERVILLE, IL 60563
NAPERVILLE, IL 60563
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 Philip Janicak's NPI number?
The NPI number for Philip Janicak is 1891993754. It was assigned to this individual provider in the NPPES registry on July 3, 2007.
Where is Philip Janicak located?
Philip Janicak practices at 1335 N Mill St, Naperville, IL 60563. The listed phone number is (630) 646-8000.
What is Philip Janicak's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Philip Janicak enrolled in Medicare?
Yes. Philip Janicak 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 Philip Janicak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Philip Janicak reassigns Medicare benefits to 2 organizations: Edward Health Ventures (Naperville, IL) and Northwestern Medical Faculty Foundation (Carol Stream, 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 Philip Janicak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Philip Janicak accept?
Health plans from Oscar Health list Philip Janicak 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 Philip Janicak was last updated on January 31, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Philip G Janicak, M.D. · NPI 1891993754
Psychiatry physician in Naperville, Illinois. Individual provider, active in the CMS NPPES registry since July 3, 2007.
## Identity
- **NPI:** 1891993754 (Entity type: Individual)
- **Enumerated:** July 3, 2007
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 036-050070 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 1335 N MILL ST, Naperville, IL 60563-2261
- **Phone:** (630) 646-8000 · **Fax:** (630) 646-8007
## 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): Edward Health Ventures (NPI 1245281724, Naperville, IL); Northwestern Medical Faculty Foundation (NPI 1346235314, Carol Stream, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loyola University Of Chicago, Stritch School Of Medicine, class of 1973
## Record status
- **NPPES last updated:** January 31, 2017
- **Other identifiers:** Medicare UPIN D89389 (IL)
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Source: [NPI Profile](https://npiprofile.com/npi/1891993754) · Data from the CMS NPPES public registry.