GREGORY J DILORENZO D.O
NPI 1861404048
Internal Medicine in Broomfield, CO
About Gregory J Dilorenzo D.o NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY J DILORENZO D.O (NPI 1861404048) is an individual internal medicine provider in Broomfield, Colorado, licensed in Colorado (DR.0031860) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Arvada, and is a graduate of Kansas City University Of Med & Biosciences, College Of Osteo Med (1991).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Gregory J Dilorenzo 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
3Medicare enrollment records show Gregory Dilorenzo reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Westminster, CO 80020
- Reassigned Medicare billing, Colorado enrollment
- 142 clinicians in this Medicare group
Boulder, CO 80302
- Reassigned Medicare billing, Colorado enrollment
- 314 clinicians in this Medicare group
Denver, CO 80210
- Reassigned Medicare billing, Colorado enrollment
- 145 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 5
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 80020 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.
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 Gregory Dilorenzo's NPI number?
The NPI number for Gregory Dilorenzo is 1861404048. It was assigned to this individual provider in the NPPES registry on August 13, 2006.
Where is Gregory Dilorenzo located?
Gregory Dilorenzo practices at 340 E 1st Ave Ste 102, Broomfield, CO 80020. The listed phone number is (720) 798-0170.
What is Gregory Dilorenzo's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Gregory Dilorenzo enrolled in Medicare?
Yes. Gregory Dilorenzo 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 Gregory Dilorenzo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Dilorenzo reassigns Medicare benefits to 3 organizations: New West Physicians Inc (Westminster, CO), Optumcare Colorado Medical Group LLC (Boulder, CO) and Onpoint Medical Group, LLC (Denver, CO). 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 Gregory Dilorenzo's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Dilorenzo accept?
Health plans from Select Health list Gregory Dilorenzo 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 Gregory Dilorenzo was last updated on October 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Gregory J Dilorenzo, D.O · NPI 1861404048
Internal Medicine physician in Broomfield, Colorado. Individual provider, active in the CMS NPPES registry since August 13, 2006.
## Identity
- **NPI:** 1861404048 (Entity type: Individual)
- **Enumerated:** August 13, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** DR.0031860 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 340 E 1ST AVE STE 102, Broomfield, CO 80020-2454
- **Phone:** (720) 798-0170 · **Fax:** (303) 862-7102
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): New West Physicians Inc (NPI 1194343780, Westminster, CO); Optumcare Colorado Medical Group LLC (NPI 1922893478, Boulder, CO); Onpoint Medical Group, LLC (NPI 1629174826, Denver, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Kansas City University Of Med & Biosciences, College Of Osteo Med, class of 1991
## Record status
- **NPPES last updated:** October 11, 2024
- **Other identifiers:** Medicaid 01318609 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1861404048) · Data from the CMS NPPES public registry.