Karen Courtney Shellenbarger, NP
Pediatric Nurse Practitioner · Worcester, MA
Karen Courtney Shellenbarger, NP is a pediatric nurse practitioner with a practice address in Worcester, Massachusetts, and NPI 1053568048, issued on Aug 21, 2008. Check the license (Massachusetts RN2324819, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Karen Courtney Shellenbarger
- Credential
- NP
- Primary taxonomy
- Pediatric Nurse Practitioner 363LP0200X
- License number
- RN2324819 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Lake Ave N, Worcester, MA 01655
- Phone
- (774) 441-7615
- Enumerated
- Aug 21, 2008
- Record last updated
- Oct 26, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (508) 856-4287
- Medicaid ID
- 2926614 OH
- Entity
- Type 1 · individual
8 nearest pediatric nurse practitioner records → All 1,311 in Massachusetts → Look up another NPI →
Also registered at 55 Lake Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Karen Courtney Shellenbarger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2324819Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average pediatric nurse practitioner in 2024
65 Medicare Part D claims, against an average of 206 among the 854 providers of this specialty who prescribed in Part D. Brand-name drugs were 80% of claims.
Most prescribed
- Emflaza52 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Karen Courtney Shellenbarger among 1,311 pediatric nurse practitioner records in Massachusetts
Karen Courtney Shellenbarger, NP is one of 1,311 pediatric nurse practitioner records with a practice address in Massachusetts. 23% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 25% of them.
- NPI issued2008 · 25% of these records are older, 69% newer
- In a Medicare fileYes · 23% of these records are
- In the CMS Doctors and Clinicians fileNo · 11% of these records are
- Record last updated2020 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Nurse Practitioner providers in Massachusetts
There are 1,311 pediatric nurse practitioner records in Massachusetts.
All 1,311 in Massachusetts → Every provider in Worcester → Pediatric Nurse Practitioner nationwide →
The 8 pediatric nurse practitioner records with the nearest ZIP codes
- Katherine Birkholz, CNPWorcester, MA 016551881177921
- Samantha DuncanWorcester, MA 016551225580871
- Molly Flynn, CNPWorcester, MA 016551396567871
- Noelle Kellicker, CNPWorcester, MA 016551245769074
- Rebecca McDonald, CNP, MSN, RNWorcester, MA 016551790143048
- Kelsey Moore, NPWorcester, MA 016551821532391
- Nada MowloodWorcester, MA 016551477065035
- Kara Thompson, MSN, MPH, RN, PNP-PCWorcester, MA 016551619452646
Common questions
What is Karen Courtney Shellenbarger, NP's NPI number?
Karen Courtney Shellenbarger, NP's National Provider Identifier (NPI) is 1053568048, issued on Aug 21, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Karen Courtney Shellenbarger, NP located?
The NPPES record lists a practice address at 55 Lake Ave N, Worcester, MA, 01655. Phone: (774) 441-7615. Providers update this record themselves, so call before visiting.
How can I verify Karen Courtney Shellenbarger, NP's license?
NPPES lists Massachusetts license number RN2324819, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Karen Courtney Shellenbarger, NP prescribe under Medicare Part D?
In 2024, Karen Courtney Shellenbarger, NP had 65 Medicare Part D claims; the average among pediatric nurse practitioner prescribers was 206. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.