NPPES file of Aug 9, 2026

Elizabeth Helen Muth, MD

Internal Medicine Physician · Newark, DE

Elizabeth Helen Muth, MD is an internal medicine physician with a practice address in Newark, Delaware, and NPI 1326292491, issued on Nov 15, 2008. Check the license (Delaware C1-0009429, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; 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
1326292491
Name
Elizabeth Helen Muth
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
C1-0009429 DE
Self-reported in NPPES; status is on the state search
Practice location
4755 Ogletown Stanton RD, Newark, DE 19718
Phone
(302) 733-4200
Enumerated
Nov 15, 2008
Record last updated
Sep 7, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(302) 733-4252
Medicare enrollment
Enrolled (PECOS I20101021001188); accepts Medicare assignment
Medical or professional school
Baylor College Of Medicine, 2006
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.
Download card Updates feed

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 Elizabeth Helen Muth in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
    Search for license C1-0009429
    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
Open 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

95% fewer Medicare Part D claims than the average internal medicine physician in 2024

153 Medicare Part D claims for 70 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Elizabeth Muth153
  2. Specialty average3,176

Most prescribed

  1. Prednisone12 claims
  2. Amlodipine Besylate11 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 IncWilmington, DE

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

Elizabeth Helen Muth among 600 internal medicine physician records in Delaware

Elizabeth Helen Muth, MD is one of 600 internal medicine physician records with a practice address in Delaware. 83% 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 40% of them.

  • NPI issued2008 · 40% of these records are older, 54% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2006 · median 2008 among the 414 with a school on file
  • Record last updated2018 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

240 internal medicine physician records list a practice address in Newark

They are 240 of the 4,662 NPPES records with a practice address in Newark, and 600 internal medicine physician records in Delaware.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Ramesh Adabala, M.D.,Newark, DE 197181902898596
  2. Mohammed Ali, MD,FACPNewark, DE 197181982769394
  3. Diane Bohner, MDNewark, DE 197181538144266
  4. Christian Coletti, M.D.Newark, DE 197181821133257
  5. Kevin Copeland, D.O.Newark, DE 197181265563571
  6. Roshni Guerry, MDNewark, DE 197181801808308
  7. Azhar Khan, M.D.Newark, DE 197181851362909
  8. Asma Mian, M.D.Newark, DE 197181144290453

Common questions

What is Elizabeth Helen Muth, MD's NPI number?

Elizabeth Helen Muth, MD's National Provider Identifier (NPI) is 1326292491, issued on Nov 15, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Elizabeth Helen Muth, MD located?

The NPPES record lists a practice address at 4755 Ogletown Stanton RD, Newark, DE, 19718. Phone: (302) 733-4200. Providers update this record themselves, so call before visiting.

How can I verify Elizabeth Helen Muth, MD's license?

NPPES lists Delaware license number C1-0009429, as entered by the provider. Search the Delaware Board of Medical Licensure and Discipline at https://delpros.delaware.gov/OH_VerifyLicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Elizabeth Helen Muth, MD prescribe under Medicare Part D?

In 2024, Elizabeth Helen Muth, MD had 153 Medicare Part D claims for 70 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.