GREGORY M MARGOLIN DO
NPI 1033194998
Internal Medicine - Critical Care Medicine in Greenwood Village, CO
About Gregory M Margolin Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY M MARGOLIN DO (NPI 1033194998) is an individual critical care medicine provider in Greenwood Village, Colorado, licensed in Colorado (0045952) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, maintains a secondary practice location in Phoenix, and is a graduate of Other (1997).
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 M Margolin Do 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 Gregory Margolin reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Greenwood Village, CO 80111
- Reassigned Medicare billing, Colorado enrollment
- Medicare enrollment name: Critical Care & Pulmonary Consultants, P.C.
- 160 clinicians in this Medicare group
Loveland, CO 80538
- Reassigned Medicare billing, Colorado enrollment
- 2,596 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 3
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 80111 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.
GREENWOOD VILLAGE, CO 80111
GREENWOOD VILLAGE, CO 80111
GREENWOOD VILLAGE, CO 80111
GREENWOOD VILLAGE, CO 80111
GREENWOOD VILLAGE, CO 80111
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 Margolin's NPI number?
The NPI number for Gregory Margolin is 1033194998. It was assigned to this individual provider in the NPPES registry on December 13, 2005.
Where is Gregory Margolin located?
Gregory Margolin practices at 7100 E Belleview Ave Ste G10, Greenwood Village, CO 80111. The listed phone number is (303) 745-0000.
What is Gregory Margolin's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Gregory Margolin enrolled in Medicare?
Yes. Gregory Margolin 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 Margolin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Margolin reassigns Medicare benefits to 2 organizations: Critical Care & Pulmonary Consultants, PC (Greenwood Village, CO) and Poudre Valley Medical Group, LLC (Loveland, 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 Margolin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Margolin accept?
Health plans from Select Health list Gregory Margolin 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 Margolin was last updated on June 14, 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 M Margolin, DO · NPI 1033194998
Critical Care Medicine physician in Greenwood Village, Colorado. Individual provider, active in the CMS NPPES registry since December 13, 2005.
## Identity
- **NPI:** 1033194998 (Entity type: Individual)
- **Enumerated:** December 13, 2005
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 0045952 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 7100 E BELLEVIEW AVE STE G10, Greenwood Village, CO 80111-1634
- **Phone:** (303) 745-0000 · **Fax:** (303) 773-3675
## 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): Critical Care & Pulmonary Consultants, PC (NPI 1033135520, Greenwood Village, CO); Poudre Valley Medical Group, LLC (NPI 1366763260, Loveland, CO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1997
## Record status
- **NPPES last updated:** June 14, 2024
- **Other identifiers:** Medicaid 784878 (AZ)
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Source: [NPI Profile](https://npiprofile.com/npi/1033194998) · Data from the CMS NPPES public registry.