David Black, PAC
David Black, PAC is a Surgical Physician Assistant in Harrisburg, PA, registered under NPI 1427042092.
Getting there
The practice address on file is 4310 LONDONDERRY RD SUITE 202, Harrisburg, PA 17109. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| MA000813L | PA | Surgical Physician Assistant primary |
This provider holds licence MA000813L 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 - Physician Assistant
- PAC ID
- 5991708265
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Physician Assistant. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Surgical covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363AS0400X
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 | 1427042092 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 9, 2005 |
| Last updated | Feb 19, 2020 |
| Status | Active |
| Sole proprietor | No |
| Credential | PAC |
| Practice address |
4310 LONDONDERRY RD SUITE 202 Harrisburg, PA 17109 (717) 920-7664 Fax (717) 920-4361 |
| Mailing address |
1700 S LINCOLN AVE Lebanon, PA 17042 |
| Other identifiers |
0993475
· KEYSTONE (PA) 50041402 · BLUE CROSS (PA) |
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 | 4 | 2 | 7 | 0 | 4 | 2 | 0 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 4 | 4 | 7 | 0 | 4 | 4 | 0 | 9 |
Sum = 58 · next multiple of 10 = 60 · check digit = 2 · actual last digit = 2
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.