DR. MARY OLIVIA ALEXANDER MD
NPI 1487220125
Family Medicine in Highlands Ranch, CO
About Dr. Mary Olivia Alexander Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARY OLIVIA ALEXANDER MD (NPI 1487220125) is an individual family medicine provider in Highlands Ranch, Colorado, licensed in Colorado (DR.73265) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS, is affiliated with York Hospital, and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Other Names 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
Dr. Mary Olivia Alexander Md 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 Mary Alexander reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Highlands Ranch, CO 80129
- Reassigned Medicare billing, Colorado enrollment
- 733 clinicians in this Medicare group
York, ME 03909
- Reassigned Medicare billing, Maine enrollment
- 347 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
York Hospital
Acute Care Hospitals · York, MEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80129 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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HIGHLANDS RANCH, CO 80129
HIGHLANDS RANCH, CO 80129
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 Mary Alexander's NPI number?
The NPI number for Mary Alexander is 1487220125. It was assigned to this individual provider in the NPPES registry on June 2, 2021. The provider is also known as Mary Olivia Hutton MD.
Where is Mary Alexander located?
Mary Alexander practices at 9137 Ridgeline Blvd Ste 100, Highlands Ranch, CO 80129. The listed phone number is (303) 649-3140.
What is Mary Alexander's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Mary Alexander enrolled in Medicare?
Yes. Mary Alexander 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 Mary Alexander's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Alexander reassigns Medicare benefits to 2 organizations: Portercare Adventist Health System (Highlands Ranch, CO) and York Hospital (York, ME). 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 Mary Alexander's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Alexander accept?
Health plans from Ambetter from NH Healthy Families, Anthem Blue Cross and Blue Shield and Taro Health list Mary Alexander 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 Mary Alexander affiliated with any hospitals?
According to CMS data, Mary Alexander is affiliated with York Hospital.
When was this NPI record last updated?
The NPPES record for Mary Alexander was last updated on March 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months 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.
# Dr. Mary Olivia Alexander, MD · NPI 1487220125
Family Medicine physician in Highlands Ranch, Colorado. Individual provider, active in the CMS NPPES registry since June 2, 2021.
## Identity
- **NPI:** 1487220125 (Entity type: Individual)
- **Enumerated:** June 2, 2021
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** DR.73265 (Colorado)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 9137 RIDGELINE BLVD STE 100, Highlands Ranch, CO 80129-2397
- **Phone:** (303) 649-3140
## 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): Portercare Adventist Health System (NPI 1548872062, Highlands Ranch, CO); York Hospital (NPI 1376528398, York, ME) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** March 23, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1487220125) · Data from the CMS NPPES public registry.