Deborah Tanya Zarek, M.D.
Internal Medicine Physician · Wilmington, DE
Deborah Tanya Zarek, M.D. is an internal medicine physician with a practice address in Wilmington, Delaware, and NPI 1619930708, issued on Apr 10, 2006. Check the license (Delaware C10006537, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Deborah Tanya Zarek
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- C10006537 DE
Self-reported in NPPES; status is on the state search - Practice location
- 3521 Silverside RD Ste 2J, Wilmington, DE 19810
- Phone
- (302) 543-5454
- Enumerated
- Apr 10, 2006
- Record last updated
- Sep 29, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (302) 327-4200
- Medicaid ID
- 1000024689 DE
- Medicare enrollment
- Enrolled (PECOS I20100121000639); accepts Medicare assignment
- Medical or professional school
- George Washington University School Of Medicine, 2000
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 3521 Silverside RD Ste 2J
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ashley Kontra, PHYSICIAN ASSISTANTMedical Physician Assistant1558785154
- Caitlyn McBride, PA-CPhysician Assistant1316602006
- Alyssa Tarburton, PA-CPhysician Assistant1407280977
Verify Deborah Tanya Zarek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
Search for license C10006537Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average internal medicine physician in 2024
7,007 Medicare Part D claims for 837 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 153 claims were for opioids.
Most prescribed
- Rosuvastatin Calcium435 claims
- Atorvastatin Calcium351 claims
- Levothyroxine Sodium303 claims
- Amlodipine Besylate264 claims
- Metoprolol Succinate246 claims
- Lisinopril245 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: $357.73
20 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. 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.
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
- Zarek Donohue LLCWilmington, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
107 internal medicine physician records list a practice address in Wilmington
They are 107 of the 6,291 NPPES records with a practice address in Wilmington, and 600 internal medicine physician records in Delaware.
All 107 in Wilmington → All 600 in Delaware → Every provider in Wilmington →
Other internal medicine physician records in Delaware
- Raya Abbasi, M.DNewark, DE1205524154
- Semaan Abboud, M.D.Millsboro, DE1063477529
- Joseph Raphael Ablaza, M.D.Dover, DE1366892291
- Anastasia AbongnelahMilford, DE1275371312
- Aashish AcharyaDover, DE1912523424
- Ramesh Adabala, M.D.,Newark, DE1902898596
- Oluwaseun Adeniyi, MDLewes, DE1154906097
- Sonia Adnan, MDNewark, DE1790915593
- Fatima Afridi, M.D.Newark, DE1578712584
- Reynold Agard, M.D.Newark, DE1902811730
Common questions
What is Deborah Tanya Zarek, M.D.'s NPI number?
Deborah Tanya Zarek, M.D.'s National Provider Identifier (NPI) is 1619930708, issued on Apr 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Deborah Tanya Zarek, M.D. located?
The NPPES record lists a practice address at 3521 Silverside RD Ste 2J, Wilmington, DE, 19810. Phone: (302) 543-5454. Providers update this record themselves, so call before visiting.
How can I verify Deborah Tanya Zarek, M.D.'s license?
NPPES lists Delaware license number C10006537, 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 Deborah Tanya Zarek, M.D. prescribe under Medicare Part D?
In 2024, Deborah Tanya Zarek, M.D. had 7,007 Medicare Part D claims for 837 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.