William Parkes, M.D.
William Parkes, M.D. is a Pediatric Otolaryngology Physician in Wilmington, DE, registered under NPI 1821231028. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 1600 ROCKLAND RD, Wilmington, DE 19803. 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 |
|---|---|---|
| C1-0011815 | DE | Pediatric Otolaryngology Physician primary |
| 25MA09926600 | NJ | Ambulatory Surgical Clinic/Center |
| MD457694 | PA | General Acute Care Hospital |
| C1-0011815 | DE | Children's Hospital |
Licences are recorded in 3 states: DE, NJ, PA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Otolaryngology
- PAC ID
- 2062643141
- Enrollment ID
- I20170804001055
Medicare enrolment is recorded as approved under the provider type Practitioner - Otolaryngology. 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.
Licensed in 3 states
This provider holds licences in 3 states: Delaware, New Jersey and Pennsylvania. The practice address on file is in Wilmington, DE, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- C1-0011815
- Specialty
- Pediatric Otolaryngology Physician
- Licence
- 25MA09926600
- Specialty
- Ambulatory Surgical Clinic/Center
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Pediatric Otolaryngology covers
A pediatric otolaryngologist has special expertise in the management of infants and children with disorders that include congenital and acquired conditions involving the aerodigestive tract, nose and paranasal sinuses, the ear and other areas of the head and neck. The pediatric otolaryngologist has special skills in the diagnosis, treatment, and management of childhood disorders of voice, speech, language and hearing. NUCC Health Care Provider Taxonomy, code 207YP0228X
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207YP0228X | Pediatric Otolaryngology Physician Pediatric Otolaryngology | C1-0011815 | DE | primary |
| 261QA1903X | Ambulatory Surgical Clinic/Center Ambulatory Surgical | 25MA09926600 | NJ | |
| 282N00000X | General Acute Care Hospital | MD457694 | PA | |
| 282NC2000X | Children's Hospital Children | C1-0011815 | DE |
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 | 1821231028 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 17, 2009 |
| Last updated | Jun 5, 2018 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | M.D. |
| Practice address |
1600 ROCKLAND RD Wilmington, DE 19803 (215) 498-2493 |
| Mailing address |
PO BOX 191 Rockland, DE 19732 |
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 | 8 | 2 | 1 | 2 | 3 | 1 | 0 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 4 | 1 | 4 | 3 | 2 | 0 | 4 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
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.