David Zweiback
Internal Medicine Physician · Hilton Head Island, SC
David Zweiback is an internal medicine physician with a practice address in Hilton Head Island, South Carolina, and NPI 1457369233, issued on Aug 4, 2006. Check the license (South Carolina 93894DO, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- David Zweiback
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 93894DO SC
Self-reported in NPPES; status is on the state search - Practice location
- 89 N Main St, Hilton Head Island, SC 29926
- Phone
- (843) 681-5305
- Enumerated
- Aug 4, 2006
- Record last updated
- Oct 24, 2025
- Fax
- (843) 681-9460
- Medicare enrollment
- Enrolled (PECOS I20250902000694); accepts Medicare assignment
- Medical or professional school
- Philadelphia College Of Osteopathic Medicine, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,881 in South Carolina → Look up another NPI →
Also registered at 89 N Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sierra Arms, APRN-FNP-CNurse Practitioner1346707437
- Bretton Powell, M.D.Internal Medicine Physician1639464035
Verify David Zweiback in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 93894DOCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
13% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,765 Medicare Part D claims for 104 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 417 claims were for opioids.
Most prescribed
- Oxycodone Hcl205 claims
- Rosuvastatin Calcium183 claims
- Gabapentin115 claims
- Amlodipine Besylate64 claims
- Dextroamphetamine-Amphetamine64 claims
- Duloxetine Hcl55 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: $503.64
26 payments; by number, the most common kind was food and beverage; the largest payer was Collegium Pharmaceutical, 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.
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
- Dr. Paul Long, LLCHilton Head Island, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Zweiback among 1,881 internal medicine physician records in South Carolina
David Zweiback is one of 1,881 internal medicine physician records with a practice address in South Carolina. 81% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 58% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1991 · median 2006 among the 1,119 with a school on file
- Record last updated2025 · 46% 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 South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
21 internal medicine physician records list a practice address in Hilton Head Island
They are 21 of the 500 NPPES records with a practice address in Hilton Head Island, and 1,881 internal medicine physician records in South Carolina.
All 1,881 in South Carolina → Every provider in Hilton Head Island → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Andrew Binamira, MDHilton Head Island, SC 299261952301939
- Carlos Cordero, M.D.Hilton Head Island, SC 299261952350530
- John Flannery, M.D.Hilton Head Island, SC 299261134164197
- Walter Gasser, MDHilton Head Island, SC 299261366471138
- James Gigante, MDHilton Head Island, SC 299261750316436
- Randy Lagoc-Dingus, MDHilton Head Island, SC 299261215987466
- Thomas Lenns, M.D.Hilton Head Island, SC 299261780778555
- Paul Long, M.D.Hilton Head Island, SC 299261982798849
Common questions
What is David Zweiback's NPI number?
David Zweiback's National Provider Identifier (NPI) is 1457369233, issued on Aug 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Zweiback located?
The NPPES record lists a practice address at 89 N Main St, Hilton Head Island, SC, 29926. Phone: (843) 681-5305. Providers update this record themselves, so call before visiting.
How can I verify David Zweiback's license?
NPPES lists South Carolina license number 93894DO, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David Zweiback prescribe under Medicare Part D?
In 2024, David Zweiback had 2,765 Medicare Part D claims for 104 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.