Louis Guernsey, MD
Louis Guernsey, MD is a Pediatric Pulmonology Physician in Pipersville, PA, registered under NPI 1134211014.
Getting there
The practice address on file is 6095 DURHAM RD, Pipersville, PA 18947. 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 |
|---|---|---|
| MD038844E | PA | Pediatric Pulmonology Physician primary |
This provider holds licence MD038844E 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 - Pulmonary Disease
- PAC ID
- 1951522614
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| New Jersey | I20141021002454 | Practitioner - Pulmonary Disease |
| Delaware | I20170717000949 | Practitioner - Pulmonary Disease |
Medicare enrolment is recorded as approved under the provider type Practitioner - Pulmonary Disease. There are 2 separate enrolment records across 2 states (NJ, DE). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. 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 Pediatric Pulmonology covers
A pediatrician dedicated to the prevention and treatment of all respiratory diseases affecting infants, children and young adults. This specialist is knowledgeable about the growth and development of the lung, assessment of respiratory function in infants and children, and experienced in a variety of invasive and noninvasive diagnostic techniques. NUCC Health Care Provider Taxonomy, code 2080P0214X
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 | 1134211014 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 29, 2006 |
| Last updated | Dec 18, 2023 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
6095 DURHAM RD Pipersville, PA 18947 (610) 844-8611 |
| Mailing address |
PO BOX 115 Chester Springs, PA 19425 |
| Other identifiers |
1410246
· Medicaid (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 | 1 | 3 | 4 | 2 | 1 | 1 | 0 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 6 | 4 | 4 | 1 | 2 | 0 | 2 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
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.