David Walter Hack, MD
Family Medicine Physician · Wilmington, DE
David Walter Hack, MD is a family medicine physician with a practice address in Wilmington, Delaware, and NPI 1861401903, issued on Aug 7, 2006. Check the license (Delaware C10005593, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- David Walter Hack
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- C10005593 DE
Self-reported in NPPES; status is on the state search - Practice location
- 701 N Clayton St, Wilmington, DE 19805
- Phone
- (302) 575-8040
- Enumerated
- Aug 7, 2006
- Record last updated
- May 19, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (302) 575-8005
- Medicaid ID
- 0000999301 DE
- Medicare enrollment
- Enrolled (PECOS I20110127000272); accepts Medicare assignment
- Medical or professional school
- Rutgers New Jersey Medical School, 1996
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 518 in Delaware → Look up another NPI →
Also registered at 701 N Clayton St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Reed Baker, PHARMDPharmacist1386083269
- April Beffa-Nere, CRNACertified Registered Nurse Anesthetist1972689610
Verify David Walter Hack 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 C10005593Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average family medicine physician in 2024
1,198 Medicare Part D claims for 93 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 32 claims were for opioids.
Most prescribed
- Atorvastatin Calcium49 claims
- Omeprazole36 claims
- Amlodipine Besylate35 claims
- Lisinopril35 claims
- Losartan Potassium35 claims
- Levothyroxine Sodium30 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
- St Francis Hospital IncWilmington, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Walter Hack among 518 family medicine physician records in Delaware
David Walter Hack, MD is one of 518 family medicine physician records with a practice address in Delaware. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 49% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1996 · median 2002 among the 323 with a school on file
- Record last updated2021 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
163 family medicine physician records list a practice address in Wilmington
They are 163 of the 6,291 NPPES records with a practice address in Wilmington, and 518 family medicine physician records in Delaware.
All 518 in Delaware → Every provider in Wilmington → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Hugh Bonner, MDWilmington, DE 198051699761288
- James Gill, MDWilmington, DE 198051982689212
- Camille Goodspeed, DOWilmington, DE 198051689673337
- Helen Karalis, D.O.Wilmington, DE 198051881650729
- David Krasner, D.O.Wilmington, DE 198051629017447
- Gene Lee, M.D.Wilmington, DE 198051669489092
- Brian McDonough, MDWilmington, DE 198051124037262
- Bruce McFall, DOWilmington, DE 198051669465191
Common questions
What is David Walter Hack, MD's NPI number?
David Walter Hack, MD's National Provider Identifier (NPI) is 1861401903, issued on Aug 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Walter Hack, MD located?
The NPPES record lists a practice address at 701 N Clayton St, Wilmington, DE, 19805. Phone: (302) 575-8040. Providers update this record themselves, so call before visiting.
How can I verify David Walter Hack, MD's license?
NPPES lists Delaware license number C10005593, 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 David Walter Hack, MD prescribe under Medicare Part D?
In 2024, David Walter Hack, MD had 1,198 Medicare Part D claims for 93 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.