NPPES file of Aug 9, 2026

Sylvia G. Oppong-Antwi, CRNP

Nurse Practitioner · Lewes, DE

Sylvia G. Oppong-Antwi, CRNP is a nurse practitioner with a practice address in Lewes, Delaware, and NPI 1942631957, issued on Dec 2, 2013. Check the license (Delaware LG-0012419, 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
1942631957
Name
Sylvia G. Oppong-Antwi
Credential
CRNP
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
LG-0012419 DE
F338612-1 NY
SP013087 PA
Self-reported in NPPES; status is on the state search
Practice location
33663 Bayview Medical Dr Unit 2, Lewes, DE 19958
Phone
(302) 645-9325
Enumerated
Dec 2, 2013
Record last updated
Jun 16, 2026
Fax
(302) 644-7162
Medicare enrollment
Enrolled (PECOS I20231127000393); accepts Medicare assignment
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 33663 Bayview Medical Dr Unit 2

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

  1. Sujay AlvencarGastroenterology Physician1508429473
  2. Geoffrey Braden, M.D.Gastroenterology Physician1275597809
  3. Scott Clark, MDGastroenterology Physician1538119979
  4. Tiffany Edwards, FNP-BCNurse Practitioner1760623409
  5. Srinivas Ramireddy, M.DGastroenterology Physician1508113515
  6. Michele Thomas, M.D.Colon & Rectal Surgery Physician1700822848

Verify Sylvia G. Oppong-Antwi 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 LG-0012419
    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
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94% fewer Medicare Part D claims than the average nurse practitioner in 2024

61 Medicare Part D claims for 34 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.

  1. Sylvia Oppong-Antwi61
  2. Specialty average1,109

Most prescribed

  1. Pantoprazole Sodium14 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: $192.03

2 payments; by number, the most common kind was food and beverage; the largest payer was Phathom Pharmaceuticals, Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sylvia Oppong-Antwi$192.03
  2. Specialty average$791.64

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

  1. Beebe Physician Network Inc.Lewes, DE

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

Sylvia G. Oppong-Antwi among 545 nurse practitioner records in Delaware

Sylvia G. Oppong-Antwi, CRNP is one of 545 nurse practitioner records with a practice address in Delaware. 66% 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 41% of them.

  • NPI issued2013 · 41% of these records are older, 55% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2013 · median 2017 among the 291 with a school on file
  • Record last updated2026 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

41 nurse practitioner records list a practice address in Lewes

They are 41 of the 1,696 NPPES records with a practice address in Lewes, and 545 nurse practitioner records in Delaware.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Vanessa AdamsLewes, DE 199581093856320
  2. Tiffany Edwards, FNP-BCLewes, DE 199581760623409
  3. Charlene Madanat, CRNPLewes, DE 199581912173469
  4. Carol Marsch, CRNPLewes, DE 199581942698105
  5. Lydia Martin, APRN, FNPLewes, DE 199581285022988
  6. Joann Marvel, FNPLewes, DE 199581235480211
  7. Deborah Peterman, NP-CLewes, DE 199581558358424
  8. Holly Rader, CRNP-FLewes, DE 199581316110174

Common questions

What is Sylvia G. Oppong-Antwi, CRNP's NPI number?

Sylvia G. Oppong-Antwi, CRNP's National Provider Identifier (NPI) is 1942631957, issued on Dec 2, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Sylvia G. Oppong-Antwi, CRNP located?

The NPPES record lists a practice address at 33663 Bayview Medical Dr Unit 2, Lewes, DE, 19958. Phone: (302) 645-9325. Providers update this record themselves, so call before visiting.

How can I verify Sylvia G. Oppong-Antwi, CRNP's license?

NPPES lists Delaware license number LG-0012419, as entered by the provider. Search the Delaware board that licenses this profession; the NPPES record confirms identity only.

How much does Sylvia G. Oppong-Antwi, CRNP prescribe under Medicare Part D?

In 2024, Sylvia G. Oppong-Antwi, CRNP had 61 Medicare Part D claims for 34 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.