GREGORY PARKER MD
NPI 1023541349
Radiology - Diagnostic Radiology in Lakewood, CO
About Gregory Parker Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY PARKER MD (NPI 1023541349) is an individual diagnostic radiology provider in Lakewood, Colorado, licensed in Colorado (DR.0069891) and active in the NPI registry since April 2017. He is enrolled in Medicare PECOS, is affiliated with St James Healthcare, and maintains a secondary practice location in Chester.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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 (PECOS)
Gregory Parker Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
7Medicare enrollment records show Gregory Parker reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lakewood, CO 80401
- Reassigned Medicare billing, Colorado enrollment
- 70 clinicians in this Medicare group
Brighton, CO 80601
- Reassigned Medicare billing, Colorado enrollment
- 82 clinicians in this Medicare group
Dillon, CO 80435
- Reassigned Medicare billing, Colorado enrollment
- 194 clinicians in this Medicare group
Tucson, AZ 85711
- Reassigned Medicare billing, Colorado enrollment
- 58 clinicians in this Medicare group
Gainesville, GA 30501
- Reassigned Medicare billing, Colorado enrollment
- 53 clinicians in this Medicare group
Charlotte, NC 28202
- Reassigned Medicare billing, Colorado enrollment
- 52 clinicians in this Medicare group
Bamberg, SC 29003
- Reassigned Medicare billing, Colorado enrollment
- 57 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 20
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St James Healthcare
Acute Care Hospitals · Butte, MTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80401 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.
LAKEWOOD, CO 80401
LAKEWOOD, CO 80401
LAKEWOOD, CO 80401
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 Parker's NPI number?
The NPI number for Gregory Parker is 1023541349. It was assigned to this individual provider in the NPPES registry on April 4, 2017.
Where is Gregory Parker located?
Gregory Parker practices at 1746 Cole Blvd Ste 150, Lakewood, CO 80401. The listed phone number is (303) 914-8800.
What is Gregory Parker's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Gregory Parker enrolled in Medicare?
Yes. Gregory Parker is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Gregory Parker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Parker reassigns Medicare benefits to 7 organizations: Diversified Radiology Of Colorado, Inc (Lakewood, CO), Spectrum Medical Imaging, LLC (Brighton, CO), Vail Clinic Inc (Dillon, CO), Radiology Ltd., LLC (Tucson, AZ), M & B Imaging, PC (Gainesville, GA) and 2 more organizations, listed in the Medicare section above. 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 Parker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Parker accept?
Health plans from Blue Cross and Blue Shield of NC, Cigna HealthCare of Arizona, Inc and Oscar Health Plan of North Carolina, Inc list Gregory Parker 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.
Is Gregory Parker affiliated with any hospitals?
According to CMS data, Gregory Parker is affiliated with St James Healthcare.
When was this NPI record last updated?
The NPPES record for Gregory Parker was last updated on September 29, 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.