Clare Louise Matis, FNP-BC
Family Nurse Practitioner · Newark, DE
Clare Louise Matis, FNP-BC is a family nurse practitioner with a practice address in Newark, Delaware, and NPI 1043659386, issued on Jun 20, 2013. Check the license (Delaware LG000651, as entered in NPPES) with the Delaware board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Clare Louise Matis
- Credential
- FNP-BC
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- LG000651 DE
Self-reported in NPPES; status is on the state search - Practice location
- 324 E Main St, Newark, DE 19711
- Phone
- (302) 369-2751
- Enumerated
- Jun 20, 2013
- Record last updated
- Jun 20, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20130812000242); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 709 in Delaware → Look up another NPI →
Also registered at 324 E Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sheri Brown, FNP-CFamily Nurse Practitioner1588651962
- Gayle French, NPFamily Nurse Practitioner1447272307
- Mark Glassner, MDFamily Medicine Physician1396746293
- Seyedmehdi Jadali, MDSurgery Physician1184682890
- Mallory Patino, PA-CMedical Physician Assistant1790206274
- Taylor Raum, PA-CPhysician Assistant1376190009
Verify Clare Louise Matis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Delaware board licenses this profession
Search for license LG000651Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average family nurse practitioner in 2024
189 Medicare Part D claims for 62 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 41 claims were for opioids.
Most prescribed
- Methadone Hcl21 claims
- Alprazolam13 claims
- Mirtazapine12 claims
- Oxycodone Hcl11 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: $1,477.63
17 payments; by number, the most common kind was food and beverage; the largest payer was Daiichi Sankyo Inc. The 99,489 providers of this specialty with any payment received $650.95 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
- Delaware Hospice, Inc.Newark, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Clare Louise Matis among 709 family nurse practitioner records in Delaware
Clare Louise Matis, FNP-BC is one of 709 family nurse practitioner records with a practice address in Delaware. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 28% of them.
- NPI issued2013 · 28% of these records are older, 68% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2013 · median 2018 among the 434 with a school on file
- Record last updated2013 · 43% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
203 family nurse practitioner records list a practice address in Newark
They are 203 of the 4,662 NPPES records with a practice address in Newark, and 709 family nurse practitioner records in Delaware.
All 709 in Delaware → Every provider in Newark → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Sheri Brown, FNP-CNewark, DE 197111588651962
- Oona Campanelli, FNPNewark, DE 197111790193308
- Gayle French, NPNewark, DE 197111447272307
- Rebecca Gelb, APRN-BCNewark, DE 197111851442511
- Jeannie HigginNewark, DE 197111104960012
- Nicole Hunter, NPNewark, DE 197111467873992
- Arleen Mitchell, FNP-BCNewark, DE 197111881093235
- Getrude NguatemNewark, DE 197111467013136
Common questions
What is Clare Louise Matis, FNP-BC's NPI number?
Clare Louise Matis, FNP-BC's National Provider Identifier (NPI) is 1043659386, issued on Jun 20, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Clare Louise Matis, FNP-BC located?
The NPPES record lists a practice address at 324 E Main St, Newark, DE, 19711. Phone: (302) 369-2751. Providers update this record themselves, so call before visiting.
How can I verify Clare Louise Matis, FNP-BC's license?
NPPES lists Delaware license number LG000651, as entered by the provider. Search the Delaware board that licenses this profession; the NPPES record confirms identity only.
How much does Clare Louise Matis, FNP-BC prescribe under Medicare Part D?
In 2024, Clare Louise Matis, FNP-BC had 189 Medicare Part D claims for 62 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.