William B. Funk, M.D.
Family Medicine Physician · Newark, DE
William B. Funk, M.D. is a family medicine physician with a practice address in Newark, Delaware, and NPI 1598796286, issued on Jul 5, 2006. Check the license (Delaware C10001699, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- William B. Funk
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- C10001699 DE
Self-reported in NPPES; status is on the state search - Practice location
- 665 Churchmans RD, Newark, DE 19702
- Phone
- (302) 731-0900
- Enumerated
- Jul 5, 2006
- Record last updated
- Apr 25, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (302) 731-7100
- Entity
- Type 1 · individual
Also registered at 665 Churchmans RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Briody, PA-CPhysician Assistant1689492365
- Jessica Casale, FNPFamily Nurse Practitioner1942533427
- Alyssa SchweizerFamily Nurse Practitioner1144017500
- Anne Walton, M.D.Family Medicine Physician1902834997
Verify William B. Funk 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 C10001699Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average family medicine physician in 2024
338 Medicare Part D claims for 115 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Losartan Potassium31 claims
- Atorvastatin Calcium24 claims
- Amlodipine Besylate17 claims
- Rosuvastatin Calcium16 claims
- Gabapentin14 claims
- Lisinopril12 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: $84.72
2 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 55,478 providers of this specialty with any payment received $902.55 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.
84 family medicine physician records list a practice address in Newark
They are 84 of the 4,662 NPPES records with a practice address in Newark, and 518 family medicine physician records in Delaware.
All 84 in Newark → All 518 in Delaware → Every provider in Newark →
Other family medicine physician records in Delaware
- Remedios Abad, MDWilmington, DE1942374665
- Heran Abiye, MDNewark, DE1922621846
- Jerome Abrams, M.D.Dover, DE1225063829
- Bogonko AchenchiDover, DE1437817624
- Gregory Adams, M.D.Bear, DE1821009770
- Rakesh Agarwal, M.D.Wilmington, DE1679775886
- Paul Aguillon, M.D.Blades, DE1275813552
- Javed Akhtar, MDMillsboro, DE1578712592
- Glenda Albizu, MDNewark, DE1306072947
- Jose Alcala Villegas, MDNewark, DE1235872771
Common questions
What is William B. Funk, M.D.'s NPI number?
William B. Funk, M.D.'s National Provider Identifier (NPI) is 1598796286, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William B. Funk, M.D. located?
The NPPES record lists a practice address at 665 Churchmans RD, Newark, DE, 19702. Phone: (302) 731-0900. Providers update this record themselves, so call before visiting.
How can I verify William B. Funk, M.D.'s license?
NPPES lists Delaware license number C10001699, 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 William B. Funk, M.D. prescribe under Medicare Part D?
In 2024, William B. Funk, M.D. had 338 Medicare Part D claims for 115 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.