KAREN ANN PRAHLER CRNP
NPI 1578166492
Nurse Practitioner - Family in Prince Frederick, MD
About Karen Ann Prahler Crnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN ANN PRAHLER CRNP (NPI 1578166492) is an individual family provider in Prince Frederick, Maryland, licensed in Maryland (R234785) and active in the NPI registry since November 2020. She is enrolled in Medicare PECOS, is affiliated with Luminis Health Anne Arundel Medical Center, Inc, and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 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
Karen Ann Prahler Crnp 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
2Medicare enrollment records show Karen Prahler reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Clinton, MD 20735
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- Also billed through NPI 1598435059 (Maryland)
- 105 clinicians in this Medicare group
Annapolis, MD 21401
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- Medicare enrollment name: Anne Arundel Gastroenterology Associates, P.A.
- 19 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.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Luminis Health Anne Arundel Medical Center, Inc
Acute Care Hospitals · Annapolis, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 20678 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PRINCE FREDERICK, MD 20678
PRINCE FREDERICK, MD 20678
PRINCE FREDERICK, MD 20678
PRINCE FREDERICK, MD 20678
PRINCE FREDERICK, MD 20678
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 Prahler's NPI number?
The NPI number for Karen Prahler is 1578166492. It was assigned to this individual provider in the NPPES registry on November 21, 2020. The provider is also known as Karen Ann Reardon.
Where is Karen Prahler located?
Karen Prahler practices at 130 Hospital Rd Ste 102, Prince Frederick, MD 20678. The listed phone number is (570) 556-8588.
What is Karen Prahler's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Karen Prahler enrolled in Medicare?
Yes. Karen Prahler 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 Karen Prahler's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Prahler reassigns Medicare benefits to 2 organizations: Crh MD Management LLC (Clinton, MD) and Anne Arundel Gastroenterology Associates PA (Annapolis, MD). 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 Karen Prahler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Karen Prahler affiliated with any hospitals?
According to CMS data, Karen Prahler is affiliated with Luminis Health Anne Arundel Medical Center, Inc.
When was this NPI record last updated?
The NPPES record for Karen Prahler was last updated on December 15, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Karen Ann Prahler, CRNP · NPI 1578166492
Family physician in Prince Frederick, Maryland. Individual provider, active in the CMS NPPES registry since November 21, 2020.
## Identity
- **NPI:** 1578166492 (Entity type: Individual)
- **Enumerated:** November 21, 2020
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** R234785 (Maryland)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 130 HOSPITAL RD STE 102, Prince Frederick, MD 20678-4029
- **Phone:** (570) 556-8588
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Crh MD Management LLC (NPI 1972263143, Clinton, MD); Anne Arundel Gastroenterology Associates PA (NPI 1245258466, Annapolis, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** December 15, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1578166492) · Data from the CMS NPPES public registry.