Clarence Mayo
Clarence Mayo is a provider specialising in Point of Service in Williamsburg, VA, registered under NPI 1962821611. 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 153 BLACKHEATH, Williamsburg, VA 23188. 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 |
|---|---|---|
| 1586 | VA | Point of Service primary |
This provider holds licence 1586 issued in VA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Point of Service covers
This product may also be called an open-ended HMO and offers a transition product incorporating features of both HMOs and PPOs. Beneficiaries are enrolled in an HMO but have the option to go outside the networks for an additional cost. NUCC Health Care Provider Taxonomy, code 305S00000X
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 | 1962821611 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 9, 2014 |
| Last updated | Apr 9, 2014 |
| Status | Active |
| Sole proprietor | Yes |
| Practice address |
153 BLACKHEATH Williamsburg, VA 23188 (757) 209-1060 Fax (757) 345-0125 |
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 | 9 | 6 | 2 | 8 | 2 | 1 | 6 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 3 | 2 | 7 | 2 | 2 | 6 | 2 |
Sum = 59 · next multiple of 10 = 60 · 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.