NPPES file of Aug 9, 2026

Diana Guzman, R.N.

Registered Nurse · Chicago, IL

Diana Guzman, R.N. is a registered nurse with a practice address in Chicago, Illinois, and NPI 1891120101, issued on Sep 5, 2013. Check the license (Illinois 041.404076, as entered in NPPES) with the Illinois board that licenses this profession; 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
1891120101
Name
Diana Guzman
Credential
R.N.
Primary taxonomy
Registered Nurse 163W00000X
License number
041.404076 IL
Self-reported in NPPES; status is on the state search
Practice location
1542 W Devon Ave, Chicago, IL 60660
Phone
(773) 465-4600
Enumerated
Sep 5, 2013
Record last updated
Sep 5, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(773) 465-4666
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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8 nearest registered nurse records → All 2,628 in Illinois → Look up another NPI →

Also registered at 1542 W Devon Ave

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

  1. Mohammad Alam, MDFamily Medicine Physician1366524050
  2. Ashley Fargnoli, LCPCMental Health Counselor1285186247
  3. Ghazala Fayyaz, M.D.Psychiatry Physician1649223595
  4. Thomas Fegan, LPC, CADCMental Health Counselor1568230407
  5. Phillip Hallinger, LCPCMental Health Counselor1356860993
  6. Andreas Iskos, PHARM DPharmacist1295057651

Verify Diana Guzman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 041.404076    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
Find the Illinois license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Diana Guzman among 2,628 registered nurse records in Illinois

Diana Guzman, R.N. is one of 2,628 registered nurse records with a practice address in Illinois. 2% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2013, is newer than 22% of them.

  • NPI issued2013 · 22% of these records are older, 76% newer
  • In a Medicare fileNo · 2% of these records are
  • In the CMS Doctors and Clinicians fileNo · 1% of these records are
  • Record last updated2013 · 48% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163W00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Registered Nurse providers in Illinois

There are 2,628 registered nurse records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,628 in Illinois → Every provider in Chicago → Registered Nurse nationwide →

The 8 registered nurse records with the nearest ZIP codes

  1. Lienne HarringtonChicago, IL 606601073431367
  2. Johana Hernandez, RNChicago, IL 606601942791777
  3. Maria Luisa KlingerChicago, IL 606601629262068
  4. Sharon OpoolaChicago, IL 606601881045342
  5. Shana Patel, RNChicago, IL 606601124631874
  6. Nazmeem Sultana, RNChicago, IL 606601518307172
  7. Muyiwa BabarindeChicago, IL 606611023593332
  8. April BellChicago, IL 606611881538197

Common questions

What is Diana Guzman, R.N.'s NPI number?

Diana Guzman, R.N.'s National Provider Identifier (NPI) is 1891120101, issued on Sep 5, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Diana Guzman, R.N. located?

The NPPES record lists a practice address at 1542 W Devon Ave, Chicago, IL, 60660. Phone: (773) 465-4600. Providers update this record themselves, so call before visiting.

How can I verify Diana Guzman, R.N.'s license?

NPPES lists Illinois license number 041.404076, as entered by the provider. Search the Illinois 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.