Caroline Witmer, NP
Adult Health Nurse Practitioner · Exton, PA
Caroline Witmer, NP is an adult health nurse practitioner with a practice address in Exton, Pennsylvania, and NPI 1457123440, issued on Oct 24, 2023. Check the license (Pennsylvania SP028493, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Caroline Witmer
- Credential
- NP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- SP028493 PA
Self-reported in NPPES; status is on the state search - Practice location
- 860 Springdale Dr, Exton, PA 19341
- Phone
- (610) 524-3703
- Enumerated
- Oct 24, 2023
- Record last updated
- Oct 24, 2023
- Medicare enrollment
- Enrolled (PECOS I20231115000237); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 1,368 in Pennsylvania → Look up another NPI →
Also registered at 860 Springdale Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Caroline Witmer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license SP028493Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024
334 Medicare Part D claims for 63 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Prosol71 claims
- Calcium Acetate47 claims
- Carvedilol31 claims
- Amlodipine Besylate23 claims
- Midodrine Hcl21 claims
- Losartan Potassium18 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.
Industry payments in 2024: $179.10
4 payments; by number, the most common kind was food and beverage; the largest payer was Ardelyx, Inc. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Clinical Renal Associates LLCExton, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Caroline Witmer among 1,368 adult health nurse practitioner records in Pennsylvania
Caroline Witmer, NP is one of 1,368 adult health nurse practitioner records with a practice address in Pennsylvania. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 94% of them.
- NPI issued2023 · 94% of these records are older, 5% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2023 · median 2012 among the 678 with a school on file
- Record last updated2023 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Health Nurse Practitioner providers in Pennsylvania
There are 1,368 adult health nurse practitioner records in Pennsylvania.
All 1,368 in Pennsylvania → Every provider in Exton → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Melissa Bradley, CRNPExton, PA 193411083858054
- Karen Fay, CRNPExton, PA 193411982302188
- Gina Genesio, CRNPExton, PA 193411700170248
- Christine McCusker, CRNPExton, PA 193411548578438
- Mary Catherine Hannigan-Conroy, CRNPGlen Mills, PA 193421093113045
- Sheria Hudson, FAMILY NURSE PRACTITGlen Mills, PA 193421831314400
- Wanda Sales-Thompson, NPGlen Mills, PA 193421891147575
- Brittany Slaper, NP-CGlen Mills, PA 193421144052473
Common questions
What is Caroline Witmer, NP's NPI number?
Caroline Witmer, NP's National Provider Identifier (NPI) is 1457123440, issued on Oct 24, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Caroline Witmer, NP located?
The NPPES record lists a practice address at 860 Springdale Dr, Exton, PA, 19341. Phone: (610) 524-3703. Providers update this record themselves, so call before visiting.
How can I verify Caroline Witmer, NP's license?
NPPES lists Pennsylvania license number SP028493, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Caroline Witmer, NP prescribe under Medicare Part D?
In 2024, Caroline Witmer, NP had 334 Medicare Part D claims for 63 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.