NPPES file of Aug 9, 2026

Robert A. Portz, MD

Adult Medicine Physician · Rehoboth Beach, DE

Robert A. Portz, MD is an adult medicine physician with a practice address in Rehoboth Beach, Delaware, and NPI 1982683827, issued on Jan 10, 2006. Check the license (Delaware C10003106, as entered in NPPES) on the Delaware Board of Medical Licensure and Discipline; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1982683827
Name
Robert A. Portz
Credential
MD
Primary taxonomy
Adult Medicine Physician 207QA0505X
License number
C10003106 DE
Self-reported in NPPES; status is on the state search
Practice location
18947 John J Williams Hwy Unit 210, Rehoboth Beach, DE 19971
Phone
(302) 645-3121
Enumerated
Jan 10, 2006
Record last updated
Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicaid ID
000396301 DE
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 18947 John J Williams Hwy Unit 210

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Bonnie Cunningham, APRN,BCClinical Nurse Specialist1275627226
  2. Alyssa Hamm, BSN, RN-BCRegistered Nurse1568964765
  3. Sandeep Khehra-Mirzaei, DPMFoot & Ankle Surgery Podiatrist1215342076
  4. Christina Trout, APRNBC,CDEMedical-Surgical Clinical Nurse Specialist1538237540
  5. Amanda Werbrich, MSN, FNP-BC, CWOCNFamily Nurse Practitioner1811827686

Verify Robert A. Portz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersDelaware Board of Medical Licensure and Discipline
    Search for license C10003106
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Delaware license search

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Adult Medicine Physician providers in Delaware

There are 6 adult medicine physician records in Delaware. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other adult medicine physician records in Delaware

  1. Prentiss Adkins, D.O.Dagsboro, DE1174528772
  2. Charlene Browne, MDWilmington, DE1003970781
  3. Ashanda Powell, M.D.Wilmington, DE1497160626
  4. Althea Titus-Grant, NPNewark, DE1598242174
  5. Roberto Villasenor, M.D.Seaford, DE1497753255

Common questions

What is Robert A. Portz, MD's NPI number?

Robert A. Portz, MD's National Provider Identifier (NPI) is 1982683827, issued on Jan 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert A. Portz, MD located?

The NPPES record lists a practice address at 18947 John J Williams Hwy Unit 210, Rehoboth Beach, DE, 19971. Phone: (302) 645-3121. Providers update this record themselves, so call before visiting.

How can I verify Robert A. Portz, MD's license?

NPPES lists Delaware license number C10003106, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.