NPPES file of Aug 9, 2026

Jennifer Brettler, DO

Internal Medicine Physician · Newark, DE

Jennifer Brettler, DO is an internal medicine physician with a practice address in Newark, Delaware, and NPI 1235363110, issued on May 7, 2009. Check the license (Delaware C2-0010149, 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
1235363110
Name
Jennifer Brettler
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
C2-0010149 DE
C20010149 DE
Self-reported in NPPES; status is on the state search
Practice location
200 Hygeia Drive, Newark, DE 19713
Phone
(302) 623-0188
Enumerated
May 7, 2009
Record last updated
Jul 12, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20120830000233); 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 200 Hygeia Drive

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

  1. Robert Berley, MDFamily Medicine Physician1548248586
  2. Samantha Decouto, DOInternal Medicine Physician1730355066
  3. Lauren Douglas, MDInternal Medicine Physician1346530896
  4. Lynn Gallagher, PA-CMedical Physician Assistant1366719882
  5. Alan Greenglass, MDInternal Medicine Physician1366596561
  6. Ajeetpal Hans, DOInternal Medicine Physician1114194891

Verify Jennifer Brettler 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 C2-0010149
    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.

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Industry payments in 2024: $21.72

1 payment: food and beverage; the largest payer was Potrero Medical, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jennifer Brettler$21.72
  2. Specialty average$1,303.06

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. 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).

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.

Other internal medicine physician records in Delaware

  1. Raya Abbasi, M.DNewark, DE1205524154
  2. Semaan Abboud, M.D.Millsboro, DE1063477529
  3. Joseph Raphael Ablaza, M.D.Dover, DE1366892291
  4. Anastasia AbongnelahMilford, DE1275371312
  5. Aashish AcharyaDover, DE1912523424
  6. Ramesh Adabala, M.D.,Newark, DE1902898596
  7. Oluwaseun Adeniyi, MDLewes, DE1154906097
  8. Sonia Adnan, MDNewark, DE1790915593
  9. Fatima Afridi, M.D.Newark, DE1578712584
  10. Reynold Agard, M.D.Newark, DE1902811730

Common questions

What is Jennifer Brettler, DO's NPI number?

Jennifer Brettler, DO's National Provider Identifier (NPI) is 1235363110, issued on May 7, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Jennifer Brettler, DO located?

The NPPES record lists a practice address at 200 Hygeia Drive, Newark, DE, 19713. Phone: (302) 623-0188. Providers update this record themselves, so call before visiting.

How can I verify Jennifer Brettler, DO's license?

NPPES lists Delaware license number C2-0010149, 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.

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.