Nicholas Guyan, RN, CRNA
Nicholas Guyan, RN, CRNA is a Registered Nurse in Pittsburgh, PA, registered under NPI 1003456831. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Pittsburgh, based on OpenStreetMap data collected Sep 13, 2026. Parking is available about 445 ft away. The nearest transit stop is 453 ft away, served by Forbes Ave at Pride Street (UPMC Mercy). A pharmacy sits 625 ft from the entrance (UPMC Mercy Outpatient Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.28 mi away.
Getting here and what is nearby
Coffee Starbucks 247 ft ~1 min
Transit Stevenson St at Locust St 337 ft ~2 min
Parking 308 ft ~2 min
Parking 341 ft ~2 min
Transit Boulevard of the Allies at Marion St (Mercy Hospital) 400 ft ~2 min
Parking 445 ft ~2 min
Transit Forbes Ave at Pride Street (UPMC Mercy) 453 ft ~2 min
Pharmacy UPMC Mercy Outpatient Pharmacy 625 ft ~3 min
Gas station Shell 995 ft ~4 min
Coffee Redhawk Coffee Roasters 0.24 mi ~5 min
Restaurant Moonlit Burgers 0.27 mi ~6 min
1023 Forbes Avenue, Pittsburgh 15219
Mo-Sa 11:00-21:00
Coffee Starbucks 0.28 mi ~6 min
Convenience Connections 0.28 mi ~6 min
Restaurant Chick-fil-A 0.28 mi ~6 min
600 Forbes Avenue, Pittsburgh 15219
Mo-Th 11:00-18:30; Fr 11:00-14:30; Su off
Restaurant Freshëns 0.28 mi ~6 min
Hotel Cambria Hotel Pittsburgh - Downtown 0.29 mi ~6 min
Hotel Pittsburgh Marriott City Center 0.42 mi ~9 min
Grocery Salem's Market 0.44 mi ~9 min
Grocery Salem's Market 0.45 mi ~9 min
Hotel Holiday Inn Express & Suites Pittsburgh-South Side 0.48 mi ~10 min
Grocery Schwartz Living Market 0.50 mi ~11 min
1317 East Carson Street, Pittsburgh 15203
Sa 10:00-17:00
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| RN681402 | PA | Registered Nurse primary |
| 141265 | PA | Certified Registered Nurse Anesthetist |
This provider holds licence RN681402 issued in PA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Certified Registered Nurse Anesthetist (crna)
- PAC ID
- 9032582424
- Enrollment ID
- I20230306002096
Medicare enrolment is recorded as approved under the provider type Practitioner - Certified Registered Nurse Anesthetist (crna). Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Registered Nurse covers
(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span. NUCC Health Care Provider Taxonomy, code 163W00000X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 163W00000X | Registered Nurse | RN681402 | PA | primary |
| 367500000X | Certified Registered Nurse Anesthetist | 141265 | PA |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003456831 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 9, 2020 |
| Last updated | Jan 24, 2023 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | RN, CRNA |
| Practice address |
1400 LOCUST ST Pittsburgh, PA 15219 (412) 232-8111 |
| Mailing address |
243 BIGHAM ST UNIT 2 Pittsburgh, PA 15211 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 4 | 5 | 6 | 8 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 5 | 3 | 8 | 6 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.