Matthew Holzberg, DO
Internal Medicine Physician · Newark, DE
Matthew Holzberg, DO is an internal medicine physician with a practice address in Newark, Delaware, and NPI 1194288647, issued on Apr 11, 2019. Check the license (Delaware C2-0024879, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Matthew Holzberg
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- C2-0024879 DE
H0105426 MD
OP61246170 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4755 Ogletown Stanton RD Ste 5A43, Newark, DE 19718
- Phone
- (302) 623-0188
- Enumerated
- Apr 11, 2019
- Record last updated
- Feb 2, 2026
- Fax
- (302) 733-5640
- Medicare enrollment
- Enrolled (PECOS I20220824000897); accepts Medicare assignment
- Medical or professional school
- Rowan University School Of Osteopathic Medicine, 2019
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 600 in Delaware → Look up another NPI →
Also registered at 4755 Ogletown Stanton RD Ste 5A43
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Matthew Holzberg 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 C2-0024879Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average internal medicine physician in 2024
344 Medicare Part D claims for 129 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 30 claims were for opioids.
Most prescribed
- Oxycodone Hcl20 claims
- Pantoprazole Sodium20 claims
- Cefdinir14 claims
- Atorvastatin Calcium12 claims
- Prednisone11 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 2 group practices
- Christiana Care Health Services IncNewark, DE
- South Sound Inpatient Physicians PLLCVancouver, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew Holzberg among 600 internal medicine physician records in Delaware
Matthew Holzberg, DO is one of 600 internal medicine physician records with a practice address in Delaware. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 72% of them.
- NPI issued2019 · 72% of these records are older, 23% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2019 · median 2008 among the 414 with a school on file
- Record last updated2026 · 49% 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 Delaware practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (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.
All 600 in Delaware → Every provider in Newark → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ramesh Adabala, M.D.,Newark, DE 197181902898596
- Mohammed Ali, MD,FACPNewark, DE 197181982769394
- Diane Bohner, MDNewark, DE 197181538144266
- Christian Coletti, M.D.Newark, DE 197181821133257
- Kevin Copeland, D.O.Newark, DE 197181265563571
- Roshni Guerry, MDNewark, DE 197181801808308
- Azhar Khan, M.D.Newark, DE 197181851362909
- Asma Mian, M.D.Newark, DE 197181144290453
Common questions
What is Matthew Holzberg, DO's NPI number?
Matthew Holzberg, DO's National Provider Identifier (NPI) is 1194288647, issued on Apr 11, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Holzberg, DO located?
The NPPES record lists a practice address at 4755 Ogletown Stanton RD Ste 5A43, Newark, DE, 19718. Phone: (302) 623-0188. Providers update this record themselves, so call before visiting.
How can I verify Matthew Holzberg, DO's license?
NPPES lists Delaware license number C2-0024879, 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 Matthew Holzberg, DO prescribe under Medicare Part D?
In 2024, Matthew Holzberg, DO had 344 Medicare Part D claims for 129 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.