Matthew Dirzius, RD
Registered Dietitian · Providence, RI
Matthew Dirzius, RD is a registered dietitian with a practice address in Providence, Rhode Island, and NPI 1841593043, issued on Dec 9, 2010. Check the license (Rhode Island 987476, as entered in NPPES) with the Rhode Island board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Matthew Dirzius
- Credential
- RD
- Primary taxonomy
- Registered Dietitian 133V00000X
- License number
- 987476 RI
Self-reported in NPPES; status is on the state search - Practice location
- 164 Summit Ave, Providence, RI 02906
- Phone
- (401) 793-2626
- Enumerated
- Dec 9, 2010
- Record last updated
- Dec 9, 2010 (not updated in 16 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 164 Summit Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zainab AbbasiInternal Medicine Physician1154990125
- Curtis Abbott, P.A.-C.Surgical Physician Assistant1730358185
- Jennifer Adelson-Mitty, MDInfectious Disease Physician1700830924
- Rahul Aggarwal, MDInternal Medicine Physician1477286839
- Kristy Altongy-Magee, PA-CSurgical Physician Assistant1336334473
- Lisha AndrewRegistered Dietitian1164992558
Verify Matthew Dirzius in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Rhode Island board licenses this profession
Search for license 987476Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
140 registered dietitian records list a practice address in Providence
They are 140 of the 9,647 NPPES records with a practice address in Providence, and 369 registered dietitian records in Rhode Island. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 140 in Providence → All 369 in Rhode Island → Every provider in Providence →
Other registered dietitian records in Rhode Island
- Andrea Ackerson, RD IBCLCProvidence, RI1356760391
- Allison AcquistoPascoag, RI1700766375
- Jessica AimoneWesterly, RI1659469088
- Tanisha Amaral, RD, LDNProvidence, RI1073279261
- Patrice AmoreJohnston, RI1194311795
- Jennifer Anderson, RD, LDNCumberland, RI1467871731
- Michelle AndersonWarwick, RI1477582971
- Lisha AndrewProvidence, RI1164992558
- Lucinda Arias, RDProvidence, RI1184056889
- Sarah Arpino, MS, RD, LDNEast Providence, RI1689078966
Common questions
What is Matthew Dirzius, RD's NPI number?
Matthew Dirzius, RD's National Provider Identifier (NPI) is 1841593043, issued on Dec 9, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Dirzius, RD located?
The NPPES record lists a practice address at 164 Summit Ave, Providence, RI, 02906. Phone: (401) 793-2626. Providers update this record themselves, so call before visiting.
How can I verify Matthew Dirzius, RD's license?
NPPES lists Rhode Island license number 987476, as entered by the provider. Search the Rhode Island board that licenses this profession; the NPPES record confirms identity 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. 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.