BASE OF THE BAYS DERMATOLOGY PC
BASE OF THE BAYS DERMATOLOGY PC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1538263231, based in Williamsburg, MI. The organization lists 5 taxonomy classifications, with Pediatric Dermatology Physician recorded as primary.
Getting there
The practice address on file is 3950 SHORE RD, Williamsburg, MI 49690. 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 |
|---|---|---|
| MS051504 | MI | Pediatric Dermatology Physician primary |
| MS051504 | MI | Dermatology Physician |
| MS051504 | MI | Procedural Dermatology Physician |
| MS051504 | MI | Dermatopathology Physician |
| MS051504 | MI | MOHS-Micrographic Surgery Physician |
This provider holds licence MS051504 issued in MI. 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
- Part B Supplier - Clinic/group Practice
- PAC ID
- 4183668486
- Enrollment ID
- O20050617000156
Medicare enrolment is recorded as approved under the provider type Part B Supplier - Clinic/group 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 Pediatric Dermatology covers
A pediatric dermatologist has, through additional special training, developed expertise in the treatment of specific skin disease categories with emphasis on those diseases which predominate in infants, children and adolescents. NUCC Health Care Provider Taxonomy, code 207NP0225X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207NP0225X | Pediatric Dermatology Physician Pediatric Dermatology | MS051504 | MI | primary |
| 207N00000X | Dermatology Physician | MS051504 | MI | |
| 207NS0135X | Procedural Dermatology Physician Procedural Dermatology | MS051504 | MI | |
| 207ND0900X | Dermatopathology Physician Dermatopathology | MS051504 | MI | |
| 207ND0101X | MOHS-Micrographic Surgery Physician MOHS-Micrographic Surgery | MS051504 | MI |
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1538263231 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Sep 12, 2006 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Practice address |
3950 SHORE RD Williamsburg, MI 49690 (231) 938-7004 Fax (231) 938-3112 |
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 | 5 | 3 | 8 | 2 | 6 | 3 | 2 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 6 | 8 | 4 | 6 | 6 | 2 | 6 |
Sum = 69 · next multiple of 10 = 70 · check digit = 1 · actual last digit = 1
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.