DR. MARJORIE SIMPSON PHD, CRNP
NPI 1083686448
Nurse Practitioner - Gerontology in Westminster, MD
About Dr. Marjorie Simpson Phd, Crnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARJORIE SIMPSON PHD, CRNP (NPI 1083686448) is an individual gerontology provider in Westminster, Maryland, licensed in Maryland (R108131) and active in the NPI registry since February 2006. She is enrolled in Medicare PECOS, is affiliated with Carroll Hospital Center, and is a graduate of Other (2001).
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 and accepts Medicare assignment
Dr. Marjorie Simpson Phd, 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
3Medicare enrollment records show Marjorie Simpson reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Westminster, MD 21157
- Reassigned Medicare billing, Maryland enrollment
- 104 clinicians in this Medicare group
Westminster, MD 21157
- Reassigned Medicare billing, Maryland enrollment
- 30 clinicians in this Medicare group
Westminster, MD 21157
- Reassigned Medicare billing, Maryland enrollment
- 4 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.
Carroll Hospital Center
Acute Care Hospitals · Westminster, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21158 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 Marjorie Simpson's NPI number?
The NPI number for Marjorie Simpson is 1083686448. It was assigned to this individual provider in the NPPES registry on February 1, 2006.
Where is Marjorie Simpson located?
Marjorie Simpson practices at PO Box 973, Westminster, MD 21158. The listed phone number is (410) 218-4786.
What is Marjorie Simpson's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.
Is Marjorie Simpson enrolled in Medicare?
Yes. Marjorie Simpson 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 Marjorie Simpson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marjorie Simpson reassigns Medicare benefits to 3 organizations: Carroll Health Group, LLC (Westminster, MD), Bridginglife, Inc. (Westminster, MD) and Expanding Medicine, LLC (Westminster, 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 Marjorie Simpson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Marjorie Simpson affiliated with any hospitals?
According to CMS data, Marjorie Simpson is affiliated with Carroll Hospital Center.
When was this NPI record last updated?
The NPPES record for Marjorie Simpson was last updated on October 8, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Dr. Marjorie Simpson, PHD, CRNP · NPI 1083686448
Gerontology physician in Westminster, Maryland. Individual provider, active in the CMS NPPES registry since February 1, 2006.
## Identity
- **NPI:** 1083686448 (Entity type: Individual)
- **Enumerated:** February 1, 2006
- **Primary specialty:** Nurse Practitioner - Gerontology · taxonomy 363LG0600X
- **State license:** R108131 (Maryland)
- **Sole proprietor:** Yes
## Practice location
- **Address:** PO BOX 973, Westminster, MD 21158-0973
- **Phone:** (410) 218-4786 · **Fax:** (410) 795-0029
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Carroll Health Group, LLC (NPI 1437473550, Westminster, MD); Bridginglife, Inc. (NPI 1073104535, Westminster, MD); Expanding Medicine, LLC (NPI 1821582297, Westminster, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2001
## Record status
- **NPPES last updated:** October 8, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1083686448) · Data from the CMS NPPES public registry.