CRYSTAL MICHELIS CONSTANTINE MASTERSON CNM
NPI 1811520026
Advanced Practice Midwife in Aurora, CO
About Crystal Michelis Constantine Masterson Cnm NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CRYSTAL MICHELIS CONSTANTINE MASTERSON CNM (NPI 1811520026) is an individual advanced practice midwife in Aurora, Colorado, licensed in Colorado (APN.0995115-CNM) and active in the NPI registry since February 2020. She is enrolled in Medicare PECOS, maintains a secondary practice location in Aurora, and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Crystal Michelis Constantine Masterson Cnm 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 Crystal Masterson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Denver, CO 80205
- Reassigned Medicare billing, Colorado enrollment
- 118 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80045 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
AURORA, CO 80045
AURORA, CO 80045
AURORA, CO 80045
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 Crystal Masterson's NPI number?
The NPI number for Crystal Masterson is 1811520026. It was assigned to this individual provider in the NPPES registry on February 16, 2020.
Where is Crystal Masterson located?
Crystal Masterson practices at 1635 Aurora Ct Fl 3, Aurora, CO 80045. The listed phone number is (720) 848-0000.
What is Crystal Masterson's specialty?
The primary specialty registered for this NPI is Advanced Practice Midwife with taxonomy code 367A00000X.
Is Crystal Masterson enrolled in Medicare?
Yes. Crystal Masterson 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 Crystal Masterson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Crystal Masterson reassigns Medicare benefits to Obstetrix Medical Group Of Colorado P C (Denver, 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 Crystal Masterson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Crystal Masterson was last updated on July 23, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.
# Crystal Michelis Constantine Masterson, CNM · NPI 1811520026
Advanced Practice Midwife physician in Aurora, Colorado. Individual provider, active in the CMS NPPES registry since February 16, 2020.
## Identity
- **NPI:** 1811520026 (Entity type: Individual)
- **Enumerated:** February 16, 2020
- **Primary specialty:** Advanced Practice Midwife · taxonomy 367A00000X
- **State license:** APN.0995115-CNM (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 1635 AURORA CT FL 3, Aurora, CO 80045-2541
- **Phone:** (720) 848-0000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Obstetrix Medical Group Of Colorado P C (NPI 1497779276, Denver, CO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** July 23, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1811520026) · Data from the CMS NPPES public registry.