NPPES file of Aug 9, 2026

Stephanie M. Koterwas, FNP

Family Nurse Practitioner · Newark, DE

Stephanie M. Koterwas, FNP is a family nurse practitioner with a practice address in Newark, Delaware, and NPI 1730551086, issued on Oct 27, 2015. Check the license (Delaware L1-0034552, as entered in NPPES) with the Delaware board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1730551086
Name
Stephanie M. Koterwas
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
L1-0034552 DE
Self-reported in NPPES; status is on the state search
Practice location
4755 Ogletown Stanton RD, Newark, DE 19718
Phone
(302) 733-4288
Enumerated
Oct 27, 2015
Record last updated
Jan 5, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20151214000719); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4755 Ogletown Stanton RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Paolo Abiad, M.D.Student in an Organized Health Care Education/Training Program1376487736
  2. Jessica AddisStudent in an Organized Health Care Education/Training Program1043950389
  3. Mary Adebanjo, RNMedical-Surgical Registered Nurse1972342681
  4. Gounathan Adly, PHARMDStudent in an Organized Health Care Education/Training Program1215357082
  5. Inongo Agbormbai, DOStudent in an Organized Health Care Education/Training Program1497515654
  6. Mansoor Ahmad, MDInterventional Cardiology Physician1184014102

Verify Stephanie M. Koterwas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Delaware board licenses this profession
    Search for license L1-0034552
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Delaware license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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34% more Medicare Part D claims than the average family nurse practitioner in 2024

1,746 Medicare Part D claims for 285 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. 16 claims were for opioids.

  1. Stephanie Koterwas1,746
  2. Specialty average1,305

Most prescribed

  1. Atorvastatin Calcium147 claims
  2. Levothyroxine Sodium71 claims
  3. Omeprazole61 claims
  4. Lisinopril59 claims
  5. Amlodipine Besylate58 claims
  6. Rosuvastatin Calcium54 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.

Bills Medicare through one group practice

  1. Christiana Care Health Services IncNewark, DE

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Stephanie M. Koterwas among 709 family nurse practitioner records in Delaware

Stephanie M. Koterwas, FNP 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 2015, is newer than 36% of them.

  • NPI issued2015 · 36% of these records are older, 58% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2015 · median 2018 among the 434 with a school on file
  • Record last updated2017 · 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.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Martha Aiken, NPNewark, DE 197181932350048
  2. Deborah Black, NPNewark, DE 197181124313887
  3. Noelle Bothe, NPNewark, DE 197181740354208
  4. Michelle Drew, DNP, MPH, CNM, FNP-CNewark, DE 197181174764062
  5. Susan Felicia, FNPNewark, DE 197181992109425
  6. Lija Gireesh, FNP-BCNewark, DE 197181568753697
  7. Susan Hutchinson, NP.Newark, DE 197181114089158
  8. Jill Jensen, NPNewark, DE 197181366496614

Common questions

What is Stephanie M. Koterwas, FNP's NPI number?

Stephanie M. Koterwas, FNP's National Provider Identifier (NPI) is 1730551086, issued on Oct 27, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Stephanie M. Koterwas, FNP located?

The NPPES record lists a practice address at 4755 Ogletown Stanton RD, Newark, DE, 19718. Phone: (302) 733-4288. Providers update this record themselves, so call before visiting.

How can I verify Stephanie M. Koterwas, FNP's license?

NPPES lists Delaware license number L1-0034552, as entered by the provider. Search the Delaware board that licenses this profession; the NPPES record confirms identity only.

How much does Stephanie M. Koterwas, FNP prescribe under Medicare Part D?

In 2024, Stephanie M. Koterwas, FNP had 1,746 Medicare Part D claims for 285 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.