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MS. KAREN LYNN RILEY CRNP
NPI 1073822797
Nurse Practitioner - Primary Care in Holden, MA

Active since September 29, 2010PECOS Enrolled
554 SALISBURY STREET, HOLDEN, MA 01520(443) 989-8718 Get Directions Write a Review

NPPES record last updated: November 21, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Nov 21, 2016, Nov 17, 2016 (2 updates tracked since 2016).

About Ms. Karen Lynn Riley Crnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MS. KAREN LYNN RILEY CRNP (NPI 1073822797) is an individual primary care provider in Holden, Massachusetts, licensed in Massachusetts (251009) and active in the NPI registry since September 2010. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1073822797
Entity TypeIndividualFemale
Primary Taxonomy363LP2300X
Provider Legal NameMS. KAREN LYNN RILEYCredential: CRNP
Location Address554 SALISBURY STREETHolden, MA 01520-1424
Mailing Address554 Salisbury StHolden, MA 01520-1424 · (443) 989-8718
Phone(443) 989-8718
Sole ProprietorNo
Enumeration DateSeptember 29, 2010
Last NPPES UpdateNovember 21, 20162 updates tracked since enumeration
✔ NPI 1073822797 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Primary CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP2300X
Licenses✔ Licensed in MA · 251009✔ Licensed in MD · R164675
554 SALISBURY STREET, Holden, MA 01520
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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 Lynn Riley Crnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Karen Riley reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ipc Hospitalists Of New England, P.C.
36 mi
Internal Medicine
819 WORCESTER ST STE 3
Springfield, MA 01151
  • Reassigned Medicare billing, Massachusetts enrollment
  • Medicare enrollment name: Ipc Hospitalists Of New England PC
  • 124 clinicians in this Medicare group
NPI 1932516176 (413) 543-6820

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 01520 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$90.70 typical visit price
range $58.86 – $177.36
Typical copayment $22.67 (range $14.71 – $44.34)
Most-billed visit code 99203
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Reported Quality Measures

Care Plan
Percentage of patients aged 65 years and older who have an advance care plan or surrogate decision maker documented in the medical record that an advance care plan was discussed but the patient did not wish or was not able to name a surrogate decision maker…
100%120 patients5/55-star benchmark: 100%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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 Riley's NPI number?

The NPI number for Karen Riley is 1073822797. It was assigned to this individual provider in the NPPES registry on September 29, 2010.

Where is Karen Riley located?

Karen Riley practices at 554 Salisbury Street, Holden, MA 01520. The listed phone number is (443) 989-8718.

What is Karen Riley's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Primary Care, with taxonomy code 363LP2300X.

Is Karen Riley enrolled in Medicare?

Yes. Karen Riley is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Karen Riley's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Karen Riley reassigns Medicare benefits to Ipc Hospitalists Of New England, P.C. (Springfield, MA). 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 Riley'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 Riley was last updated on November 21, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.