DR. SANDY COLE MARKS III M.D.
NPI 1265420087
Anesthesiology in Fort Collins, CO
About Dr. Sandy Cole Marks Iii M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SANDY COLE MARKS III M.D. (NPI 1265420087) is an individual anesthesiology provider in Fort Collins, Colorado, licensed in Colorado (DR.0037167) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Massachusetts Medical School (1992).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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
Dr. Sandy Cole Marks Iii 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 Reassignment
Medicare enrollment records show Sandy Marks reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Fort Collins, CO 80525
- Reassigned Medicare billing, Colorado enrollment
- 250 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.
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.
FORT COLLINS, CO 80524
FORT COLLINS, CO 80524
FORT COLLINS, CO 80524
FORT COLLINS, CO 80524
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 Sandy Marks's NPI number?
The NPI number for Sandy Marks is 1265420087. It was assigned to this individual provider in the NPPES registry on October 6, 2005.
Where is Sandy Marks located?
Sandy Marks practices at 1236 E Elizabeth St Suite1, Fort Collins, CO 80524. The listed phone number is (970) 224-2985.
What is Sandy Marks's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Sandy Marks enrolled in Medicare?
Yes. Sandy Marks 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 Sandy Marks's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sandy Marks reassigns Medicare benefits to Northern Colorado Anesthesia Professionals PLLC (Fort Collins, 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 Sandy Marks's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Sandy Marks accept?
Health plans from Select Health list Sandy Marks 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 Sandy Marks was last updated on June 7, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.