CAREN MARR ARMSTRONG MD, PHD
NPI 1215321864
Psychiatry & Neurology - Neurology with Special Qualifications in Child Neurology in Sacramento, CA
About Caren Marr Armstrong Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CAREN MARR ARMSTRONG MD, PHD (NPI 1215321864) is an individual neurology with special qualifications in child neurology provider in Sacramento, California, licensed in California (197666) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Caren Marr Armstrong Md, Phd is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Caren Armstrong reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sacramento, CA 95817
- Reassigned Medicare billing, California enrollment
- 2,570 clinicians in this Medicare group
Sacramento, CA 95817
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Regents Of The University Of California
- 918 clinicians in this Medicare group
Philadelphia, PA 19104
- Reassigned Medicare billing, Pennsylvania enrollment
- Medicare enrollment name: Childrens Health Care Associates Inc
- 1,225 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 95817 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
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 Caren Armstrong's NPI number?
The NPI number for Caren Armstrong is 1215321864. It was assigned to this individual provider in the NPPES registry on March 21, 2015.
Where is Caren Armstrong located?
Caren Armstrong practices at 4860 Y St, Sacramento, CA 95817. The listed phone number is (916) 734-6280.
What is Caren Armstrong's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology with Special Qualifications in Child Neurology, with taxonomy code 2084N0402X.
Is Caren Armstrong enrolled in Medicare?
Yes. Caren Armstrong is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Caren Armstrong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Caren Armstrong reassigns Medicare benefits to 3 organizations: Regents Of The Univ Of Ca (Sacramento, CA), Regents Of The University Of Ca (Sacramento, CA) and Children's Health Care Associates (Philadelphia, PA). 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 Caren Armstrong'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 Caren Armstrong was last updated on September 6, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Caren Marr Armstrong, MD, PHD · NPI 1215321864
Neurology with Special Qualifications in Child Neurology physician in Sacramento, California. Individual provider, active in the CMS NPPES registry since March 21, 2015.
## Identity
- **NPI:** 1215321864 (Entity type: Individual)
- **Enumerated:** March 21, 2015
- **Primary specialty:** Psychiatry & Neurology - Neurology with Special Qualifications in Child Neurology · taxonomy 2084N0402X
- **State license:** 197666 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 4860 Y ST, Sacramento, CA 95817-2307
- **Phone:** (916) 734-6280
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Regents Of The Univ Of Ca (NPI 1013906973, Sacramento, CA); Regents Of The University Of Ca (NPI 1992930986, Sacramento, CA); Children's Health Care Associates (NPI 1619062668, Philadelphia, PA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 6, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1215321864) · Data from the CMS NPPES public registry.