Matthew Holzberg, DO

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

C2-0024879 Issued in DE

Practice address

4755 Ogletown Stanton Rd Ste 5A43
Newark, DE 19718-2200

Phone

(302) 623-0188

Fax

(302) 733-5640

NPI assigned

Apr 11, 2019

Sex

Male

Sole proprietor

Yes

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in WA, DE, MD3 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 3

Specialty

Internal Medicine

Education

Rowan University School of Osteopathic Medicine, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

South Sound Inpatient Physicians PLLCGroup PAC ID 5991618738, 424 clinicians

Christiana Care Health Services IncGroup PAC ID 9739097569, 1,480 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Peacehealth Southwest Medical Cente Hospital, Vancouver, WA, CCN 500050
• Christiana Hospital Hospital, Newark, DE, CCN 080001
• Peacehealth St John Medical Center Hospital, Longview, WA, CCN 500041

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mholzberg559789@direct.peacehealth.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Christiana Care Health Services Inc

  • Hospitalist Physician
  • Newark, DE
  • NPI 1245474329

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• South Sound Inpatient Physicians PLLC

  • Internal Medicine Physician
  • Vancouver, WA
  • NPI 1023285756
  Medicare reassignment Care Compare group NPD
• Union Hospital of Cecil County

  • Internal Medicine Physician
  • Elkton, MD
  • NPI 1124067848
  Medicare reassignment
• Christiana Care Health Services Inc

  • Neurology Physician
  • Chadds Ford, PA
  • NPI 1881228484
  NPD
• Cogent Healthcare of Washington, PC

  • Internal Medicine Physician
  • Vancouver, WA
  • NPI 1861430522
  NPD
• South Sound Inpatient Physicians PLLC

  • Internal Medicine Physician
  • Hillsboro, OR
  • NPI 1508023789
  NPD
• South Sound Inpatient Physicians, PLLC

  • Hospitalist Physician
  • Coupeville, WA
  • NPI 1982035754

  Internal Medicine

  NPD
• Peacehealth

  • General Acute Care Hospital
  • Vancouver, WA
  • NPI 1134178999
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Christiana Care Health Services, Inc.

  • General Acute Care Hospital
  • Wilmington, DE
  • NPI 1134194038
  Care Compare affiliation
• Peacehealth

  • Cardiovascular Disease Physician
  • Vancouver, WA
  • NPI 1003194911

  Hospital

  Care Compare affiliation
• Peacehealth

  • General Acute Care Hospital
  • Longview, WA
  • NPI 1073510277
  Care Compare affiliation
• Peacehealth

  • General Acute Care Hospital
  • Vancouver, WA
  • NPI 1134178999
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1554940800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769990400000",
    "number": "1194288647",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4755 OGLETOWN STANTON RD STE 5A43",
            "city": "NEWARK",
            "state": "DE",
            "postal_code": "197182200",
            "telephone_number": "302-623-0188",
            "fax_number": "302-733-5640"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4755 OGLETOWN STANTON RD STE 5A43",
            "city": "NEWARK",
            "state": "DE",
            "postal_code": "197182200",
            "telephone_number": "302-623-0188",
            "fax_number": "302-733-5640"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "HOLZBERG",
        "first_name": "MATTHEW",
        "credential": "DO",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-04-11",
        "last_updated": "2026-02-02",
        "certification_date": "2026-02-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "WA",
            "license": "OP61246170",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MD",
            "license": "H0105426",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "DE",
            "license": "C2-0024879",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Richard Alan Holmes, PH.D.
• Veronica Holmes
• Jacqueline Schilling Holt, MD
• Connor Holthouse
• Dorothy Lorraine Holz, COTA
• Aton Mordechai Holzer, MD
• Nancy Katherine Homan, APRN
• Home Service Equipment, Inc.
• Homestyle Homecare
• Matthew Joseph Homishak, CRNA

• Internal Medicine Physician in Newark, DE
• Providers in Newark, DE by specialty
• Internal Medicine Physician in Delaware

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 2, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.