MS. HILARY ANNE DIEFENBACH MA, CCC-SLP, CBIS
NPI 1669976940
Speech-Language Pathologist in Aurora, CO
About Ms. Hilary Anne Diefenbach Ma, Ccc-slp, Cbis NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. HILARY ANNE DIEFENBACH MA, CCC-SLP, CBIS (NPI 1669976940) is an individual speech-language pathologist provider in Aurora, Colorado, licensed in Colorado (3137) and active in the NPI registry since March 2018. She is a graduate of Other (2015).
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
Ms. Hilary Anne Diefenbach Ma, Ccc-slp, Cbis 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 Reassignment
Medicare enrollment records show Hilary Diefenbach reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Aurora, CO 80045
- Reassigned Medicare billing, Colorado enrollment
- 4,283 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.
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
AURORA, CO 80045
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 Hilary Diefenbach's NPI number?
The NPI number for Hilary Diefenbach is 1669976940. It was assigned to this individual provider in the NPPES registry on March 21, 2018.
Where is Hilary Diefenbach located?
Hilary Diefenbach practices at 12348 E Montview Blvd, Aurora, CO 80045. The listed phone number is (303) 724-3116.
What is Hilary Diefenbach's specialty?
The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.
Is Hilary Diefenbach enrolled in Medicare?
Yes. Hilary Diefenbach 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 organization bills Medicare for Hilary Diefenbach's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hilary Diefenbach reassigns Medicare benefits to University Physicians, Incorporated (Aurora, CO). The 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 Hilary Diefenbach's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Hilary Diefenbach accept?
Health plans from Select Health list Hilary Diefenbach 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 Hilary Diefenbach was last updated on May 10, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Ms. Hilary Anne Diefenbach, MA, CCC-SLP, CBIS · NPI 1669976940
Speech-Language Pathologist provider in Aurora, Colorado. Individual provider, active in the CMS NPPES registry since March 21, 2018.
## Identity
- **NPI:** 1669976940 (Entity type: Individual)
- **Enumerated:** March 21, 2018
- **Primary specialty:** Speech-Language Pathologist · taxonomy 235Z00000X
- **State license:** 3137 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 12348 E MONTVIEW BLVD, Aurora, CO 80045-7103
- **Phone:** (303) 724-3116
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** University Physicians, Incorporated (NPI 1386163160, Aurora, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** May 10, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1669976940) · Data from the CMS NPPES public registry.