MARCIA KAY MARONN JOHNSON CRNA
NPI 1063455418
Nurse Anesthetist, Certified Registered in Littleton, CO
About Marcia Kay Maronn Johnson Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARCIA KAY MARONN JOHNSON CRNA (NPI 1063455418) is an individual nurse anesthetist, certified registered in Littleton, Colorado, licensed in Colorado (109150) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS, is affiliated with Gila Regional Medical Center, and maintains a secondary practice location in Great Falls.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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
Marcia Kay Maronn Johnson Crna 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
12Medicare enrollment records show Marcia Maronn Johnson reassigns Medicare billing to 12 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Littleton, CO 80120
- Reassigned Medicare billing, Colorado enrollment
- 84 clinicians in this Medicare group
Thornton, CO 80229
- Reassigned Medicare billing, Colorado enrollment
- 46 clinicians in this Medicare group
Del Norte, CO 81132
- Reassigned Medicare billing, Colorado enrollment
- 203 clinicians in this Medicare group
Wray, CO 80758
- Reassigned Medicare billing, Colorado enrollment
- 41 clinicians in this Medicare group
Las Vegas, NM 87701
- Reassigned Medicare billing, New Mexico enrollment
- 70 clinicians in this Medicare group
Carroll, IA 51401
- Reassigned Medicare billing, Iowa enrollment
- 125 clinicians in this Medicare group
Boulder, MT 59632
- Reassigned Medicare billing, Montana enrollment
- 278 clinicians in this Medicare group
Butte, MT 59701
- Reassigned Medicare billing, Montana enrollment
- 16 clinicians in this Medicare group
West Des Moines, IA 50266
- Reassigned Medicare billing, Iowa enrollment
- 209 clinicians in this Medicare group
Great Falls, MT 59405
- Reassigned Medicare billing, Montana enrollment
- 637 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.
Gila Regional Medical Center
Critical Access Hospitals · Silver City, NMPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 80128 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Marcia Maronn Johnson's NPI number?
The NPI number for Marcia Maronn Johnson is 1063455418. It was assigned to this individual provider in the NPPES registry on June 14, 2006. The provider is also known as Marcia Johnson Crna.
Where is Marcia Maronn Johnson located?
Marcia Maronn Johnson practices at 7690 W Massey Dr, Littleton, CO 80128. The listed phone number is (970) 389-2555.
What is Marcia Maronn Johnson's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Marcia Maronn Johnson enrolled in Medicare?
Yes. Marcia Maronn Johnson 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 Marcia Maronn Johnson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marcia Maronn Johnson reassigns Medicare benefits to 12 organizations: Arapahoe Gastroenterology Anesthesia Associates LLC (Littleton, CO), Anesthesia Consulting Partners, PLLC (Thornton, CO), Lutheran Hospital Association Of The San Luis Valley (Del Norte, CO), Wray Community District Hospital (Wray, CO), Netherlands Anesthesia, LLC (Las Vegas, NM) and 7 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 Marcia Maronn Johnson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marcia Maronn Johnson accept?
Health plans from Blue Cross and Blue Shield of Montana and Wellmark Health Plan of Iowa, Inc. list Marcia Maronn Johnson 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 Marcia Maronn Johnson affiliated with any hospitals?
According to CMS data, Marcia Maronn Johnson is affiliated with Gila Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Marcia Maronn Johnson was last updated on September 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Marcia Kay Maronn Johnson, CRNA · NPI 1063455418
Nurse Anesthetist, Certified Registered physician in Littleton, Colorado. Individual provider, active in the CMS NPPES registry since June 14, 2006.
## Identity
- **NPI:** 1063455418 (Entity type: Individual)
- **Enumerated:** June 14, 2006
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** 109150 (Colorado)
- **Sole proprietor:** No
## Practice location
- **Address:** 7690 W MASSEY DR, Littleton, CO 80128-6288
- **Phone:** (970) 389-2555 · **Fax:** (855) 742-1239
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging
- **Bills Medicare through:** 12 organizations under Medicare reassignment (form CMS-855R): Arapahoe Gastroenterology Anesthesia Associates LLC (NPI 1598115479, Littleton, CO); Anesthesia Consulting Partners, PLLC (NPI 1891408050, Thornton, CO); Lutheran Hospital Association Of The San Luis Valley (NPI 1851579262, Del Norte, CO); Wray Community District Hospital (NPI 1083640239, Wray, CO); Netherlands Anesthesia, LLC (NPI 1922603562, Las Vegas, NM); and 7 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1999
## Record status
- **NPPES last updated:** September 18, 2025
- **Other identifiers:** Medicaid 49188836 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1063455418) · Data from the CMS NPPES public registry.