Tyler Johnston, MD
Tyler Johnston, MD is a Family Medicine Physician in Lancaster, PA, registered under NPI 1003659483.
Getting there
Here is what surrounds this office in Lancaster, based on OpenStreetMap data collected Oct 12, 2026. Parking is available about 0.45 mi away at Duke Street Parking Garage. The nearest transit stop is 665 ft away, served by North Duke and East James Street. If you arrive early, there is a coffee shop 0.44 mi away.
Getting here and what is nearby
Transit North Duke and Frederick Street 379 ft ~2 min
Transit North Duke and East New Street 642 ft ~3 min
Parking 614 ft ~3 min
Transit North Duke and East James Street 665 ft ~3 min
Parking 757 ft ~3 min
Restaurant Slugger's Pizzeria 0.20 mi ~5 min
701 North Queen Street, Lancaster 17603
Mo-Tu,Th-Fr 11:00-20:00; We off; Sa-Su 12:00-20:00
Restaurant Decades 0.23 mi ~5 min
438 North Queen Street, Lancaster 17603
We-Th 16:00-24:00, Fr-Sa 12:00-01:00, Su 00:00-24:00
Convenience Friendly Mini-mart 0.25 mi ~6 min
Restaurant Sa La Thai 0.29 mi ~6 min
337-339 North Queen Street
Mo-Tu 17:00-21:00; We-Fr 11:00-15:00,17:00-21:00; Sa 12:00-15:00,17:00-21:00; Su 16:00-20:00
Convenience O&J 1 Deli Grocery 0.31 mi ~7 min
121 East Walnut Street, Lancaster
Convenience Turkey Hill 0.33 mi ~7 min
Coffee Wired Cup Cafe 0.41 mi ~9 min
216 North Duke Street, Lancaster
Tu-Fr 07:00-14:00; Sa-Su 08:00-14:00
Coffee Scratch Bakes Cafe 0.42 mi ~9 min
11 West Chestnut Street, Lancaster
Mo-Fr 08:00-16:00; Sa-Su off
Hotel Lancaster Arts Hotel 0.43 mi ~9 min
Coffee Square One Coffee 0.44 mi ~9 min
145 North Duke Street, Lancaster 17602
Mo-Fr 07:00-19:00; Sa-Su 08:00-19:00
Parking Duke Street Parking Garage 0.45 mi ~9 min
Hotel Holiday Inn Lancaster 0.46 mi ~10 min
Hotel Cork Factory Hotel 0.49 mi ~10 min
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 |
|---|---|---|
| MT-231090 | PA | Family Medicine Physician primary |
This provider holds licence MT-231090 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
- Order And Referring Only - Family Practice
- PAC ID
- 8224572474
- Enrollment ID
- I20240628003056
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Family Practice. 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 Family Medicine covers
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity. NUCC Health Care Provider Taxonomy, code 207Q00000X
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 | 1003659483 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 14, 2024 |
| Last updated | Jun 14, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
555 N DUKE ST Lancaster, PA 17602 (717) 544-5511 |
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 | 6 | 5 | 9 | 4 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 5 | 9 | 4 | 7 |
Sum = 57 · next multiple of 10 = 60 · check digit = 3 · actual last digit = 3
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.