NPPES file of Aug 9, 2026

Nicholas Guyan, RN, CRNA

Registered Nurse · Pittsburgh, PA

Nicholas Guyan, RN, CRNA is a registered nurse with a practice address in Pittsburgh, Pennsylvania, and NPI 1003456831, issued on Jan 9, 2020. Check the license (Pennsylvania RN681402, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1003456831
Name
Nicholas Guyan
Credential
RN, CRNA
Primary taxonomy
Registered Nurse 163W00000X
License numbers
RN681402 PA
141265 PA
Self-reported in NPPES; status is on the state search
Practice location
1400 Locust St, Pittsburgh, PA 15219
Phone
(412) 232-8111
Enumerated
Jan 9, 2020
Record last updated
Jan 24, 2023
Medicare enrollment
Enrolled (PECOS I20230306002096); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest registered nurse records → All 5,372 in Pennsylvania → Look up another NPI →

Also registered at 1400 Locust St

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

  1. Walter Abrams, DPTPhysical Therapist1063148062
  2. Benjamin AdcockCertified Registered Nurse Anesthetist1760805923
  3. Jacalyn Allera, CRNACertified Registered Nurse Anesthetist1063408367
  4. Jennifer Alvarez, MDInternal Medicine Physician1790414811
  5. Brianne AntonellaPhysical Therapist1447033568
  6. Dana AravichOccupational Therapist1184043200

Verify Nicholas Guyan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license RN681402    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 Pennsylvania 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through one group practice

  1. University OF Pittsburgh PhysiciansPittsburgh, PA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nicholas Guyan among 5,372 registered nurse records in Pennsylvania

Nicholas Guyan, RN, CRNA is one of 5,372 registered nurse records with a practice address in Pennsylvania. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 55% of them.

  • NPI issued2020 · 55% of these records are older, 43% newer
  • In a Medicare fileYes · 3% of these records are
  • In the CMS Doctors and Clinicians fileYes · 3% of these records are
  • Graduated2022 · median 2021 among the 151 with a school on file
  • Record last updated2023 · 68% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

422 registered nurse records list a practice address in Pittsburgh

They are 422 of the 28,866 NPPES records with a practice address in Pittsburgh, and 5,372 registered nurse records in Pennsylvania.

All 5,372 in Pennsylvania → Every provider in Pittsburgh → Registered Nurse nationwide →

The 8 registered nurse records with the nearest ZIP codes

  1. Mujahid AltamimiPittsburgh, PA 152191073450946
  2. Meredith Cummings, RNPittsburgh, PA 152191144754003
  3. Andrew Fleming, RN, BSNPittsburgh, PA 152191588058119
  4. Kory GoukerPittsburgh, PA 152191477199776
  5. Andrea MyersPittsburgh, PA 152191174853592
  6. Maeve O'DonnellPittsburgh, PA 152191184387862
  7. Kelly Philbin, RNPittsburgh, PA 152191891441747
  8. Sarah Sunderlin, RNPittsburgh, PA 152191780512236

Common questions

What is Nicholas Guyan, RN, CRNA's NPI number?

Nicholas Guyan, RN, CRNA's National Provider Identifier (NPI) is 1003456831, issued on Jan 9, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Nicholas Guyan, RN, CRNA located?

The NPPES record lists a practice address at 1400 Locust St, Pittsburgh, PA, 15219. Phone: (412) 232-8111. Providers update this record themselves, so call before visiting.

How can I verify Nicholas Guyan, RN, CRNA's license?

NPPES lists Pennsylvania license number RN681402, as entered by the provider. Search the Pennsylvania 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. Medicare files from data.cms.gov. 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.