Mary Lasher, DO
Mary Lasher, DO is a Family Medicine Physician in Erie, PA, registered under NPI 1003477407.
Getting there
Here is what surrounds this office in Erie, based on OpenStreetMap data collected Sep 29, 2026. Parking is available about 0.20 mi away. The nearest transit stop is 1,016 ft away, served by W 6th St at Kahkwa Blvd.
Getting here and what is nearby
Restaurant Little Caesars 81 ft ~1 min
Convenience Country Fair 311 ft ~2 min
1939 West 8th Street, Erie 16505
Gas station Citgo 387 ft ~2 min
1939 West 8th Street, Erie 16505
Transit W 6th St at Maryland Ave 817 ft ~4 min
Transit W 6th St at Maryland Ave 828 ft ~4 min
Parking 884 ft ~4 min
Transit W 6th St at Kahkwa Blvd 1,016 ft ~4 min
Parking 1,009 ft ~4 min
Parking 0.20 mi ~4 min
Restaurant Avanti's 0.28 mi ~6 min
1662 West 8th Street, Erie 16505
Restaurant Casablanca Grill 0.36 mi ~8 min
2174 West 8th Street, Erie 16505
Gas station GetGo 0.42 mi ~9 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 |
|---|---|---|
| OS022402 | PA | Family Medicine Physician primary |
| OT019591 | PA | Family Medicine Physician |
This provider holds licence OS022402 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 - Family Practice
- PAC ID
- 1456735646
- Enrollment ID
- I20220907003657
Medicare enrolment is recorded as approved under the provider type Practitioner - 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
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 | |
|---|---|---|---|---|
| 207Q00000X | Family Medicine Physician | OS022402 | PA | primary |
| 207Q00000X | Family Medicine Physician | OT019591 | 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 | 1003477407 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 26, 2019 |
| Last updated | Jul 24, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | DO |
| Practice address |
1920 W 8TH ST Erie, PA 16505 (814) 456-1097 Fax (814) 287-9375 |
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 | 7 | 7 | 4 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 7 | 5 | 4 | 0 |
Sum = 53 · next multiple of 10 = 60 · check digit = 7 · actual last digit = 7
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.