MARIA CRISTINA DEL ROSARIO ALDANA SIERRA M.D.
NPI 1104271675
Pediatrics - Child Abuse Pediatrics in Phoenix, AZ
About Maria Cristina Del Rosario Aldana Sierra M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARIA CRISTINA DEL ROSARIO ALDANA SIERRA M.D. (NPI 1104271675) is an individual child abuse pediatrics provider in Phoenix, Arizona, licensed in Arizona (65371) and active in the NPI registry since May 2016. She is enrolled in Medicare PECOS and maintains a secondary practice location in Detroit.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 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 (PECOS)
Maria Cristina Del Rosario Aldana Sierra M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Maria Aldana Sierra reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Phoenix, AZ 85016
- Reassigned Medicare billing, Arizona enrollment
- 1,416 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.
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Maria Aldana Sierra's NPI number?
The NPI number for Maria Aldana Sierra is 1104271675. It was assigned to this individual provider in the NPPES registry on May 3, 2016.
Where is Maria Aldana Sierra located?
Maria Aldana Sierra practices at 2120 N Central Ave, Phoenix, AZ 85004. The listed phone number is (029) 336-6100.
What is Maria Aldana Sierra's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Child Abuse Pediatrics, with taxonomy code 2080C0008X.
Is Maria Aldana Sierra enrolled in Medicare?
Yes. Maria Aldana Sierra is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Maria Aldana Sierra's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maria Aldana Sierra reassigns Medicare benefits to Phoenix Children's Hospital (Phoenix, AZ). 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 Maria Aldana Sierra's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Maria Aldana Sierra accept?
Health plans from Antidote Health Plan of Arizona, Inc. and Imperial Insurance Companies, Inc. list Maria Aldana Sierra 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 Maria Aldana Sierra was last updated on July 28, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Maria Cristina Del Rosario Aldana Sierra, M.D. · NPI 1104271675
Child Abuse Pediatrics physician in Phoenix, Arizona. Individual provider, active in the CMS NPPES registry since May 3, 2016.
## Identity
- **NPI:** 1104271675 (Entity type: Individual)
- **Enumerated:** May 3, 2016
- **Primary specialty:** Pediatrics - Child Abuse Pediatrics · taxonomy 2080C0008X
- **State license:** 65371 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 2120 N CENTRAL AVE, Phoenix, AZ 85004-1455
- **Phone:** (029) 336-6100
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Phoenix Children's Hospital (NPI 1922112044, Phoenix, AZ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 28, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1104271675) · Data from the CMS NPPES public registry.