IRENE W. NJUGUNA AGNP
NPI 1255893061
Nurse Practitioner - Gerontology in Perry Hall, MD
About Irene W. Njuguna Agnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
IRENE W. NJUGUNA AGNP (NPI 1255893061) is an individual gerontology provider in Perry Hall, Maryland, licensed in Maryland (AG03190100) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS and is a graduate of Other (2019).
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
Irene W. Njuguna Agnp 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 Reassignment
Medicare enrollment records show Irene Njuguna reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Pikesville, MD 21208
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 59 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 4
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21128 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PERRY HALL, MD 21128
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 Irene Njuguna's NPI number?
The NPI number for Irene Njuguna is 1255893061. It was assigned to this individual provider in the NPPES registry on April 1, 2019.
Where is Irene Njuguna located?
Irene Njuguna practices at 4307 Silver Spring Rd, Perry Hall, MD 21128. The listed phone number is (410) 948-5355.
What is Irene Njuguna's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Gerontology, with taxonomy code 363LG0600X.
Is Irene Njuguna enrolled in Medicare?
Yes. Irene Njuguna 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 organization bills Medicare for Irene Njuguna's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Irene Njuguna reassigns Medicare benefits to Optimize Medical Group (Pikesville, 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 Irene Njuguna'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 Irene Njuguna was last updated on April 1, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Irene W. Njuguna, AGNP · NPI 1255893061
Gerontology physician in Perry Hall, Maryland. Individual provider, active in the CMS NPPES registry since April 1, 2019.
## Identity
- **NPI:** 1255893061 (Entity type: Individual)
- **Enumerated:** April 1, 2019
- **Primary specialty:** Nurse Practitioner - Gerontology · taxonomy 363LG0600X
- **State license:** AG03190100 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 4307 SILVER SPRING RD, Perry Hall, MD 21128-9656
- **Phone:** (410) 948-5355
## 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:** Optimize Medical Group (NPI 1952818999, Pikesville, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** April 1, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1255893061) · Data from the CMS NPPES public registry.