MS. KAREN L SPENCER ACNP-BC CRNP
NPI 1275627952
Nurse Practitioner - Acute Care in Washington, DC
About Ms. Karen L Spencer Acnp-bc Crnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. KAREN L SPENCER ACNP-BC CRNP (NPI 1275627952) is an individual acute care provider in Washington, District Of Columbia, licensed in Maryland (R162713) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ms. Karen L Spencer Acnp-bc Crnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Karen Spencer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baltimore, MD 21202
- Reassigned Medicare billing, Maryland enrollment
- 22 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 20422 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 2
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 Karen Spencer's NPI number?
The NPI number for Karen Spencer is 1275627952. It was assigned to this individual provider in the NPPES registry on October 3, 2006.
Where is Karen Spencer located?
Karen Spencer practices at 50 Irving Street N.W., Washington, DC 20422. The listed phone number is (202) 745-5616.
What is Karen Spencer's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Karen Spencer enrolled in Medicare?
Yes. Karen Spencer is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Karen Spencer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Spencer reassigns Medicare benefits to Snf Physiatry Services MD LLC (Baltimore, MD). 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 Karen Spencer'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 Karen Spencer was last updated on July 30, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Ms. Karen L Spencer, ACNP-BC CRNP · NPI 1275627952
Acute Care physician in Washington, District of Columbia. Individual provider, active in the CMS NPPES registry since October 3, 2006.
## Identity
- **NPI:** 1275627952 (Entity type: Individual)
- **Enumerated:** October 3, 2006
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** R162713 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 50 IRVING STREET N.W., Washington, DC 20422
- **Phone:** (202) 745-5616
## 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:** Snf Physiatry Services MD LLC (NPI 1508668542, Baltimore, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** July 30, 2008
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Source: [NPI Profile](https://npiprofile.com/npi/1275627952) · Data from the CMS NPPES public registry.