Ari Mayerfield, M.D.
Ari Mayerfield, M.D. is a Surgery of the Hand (Surgery) Physician in White Plains, NY, registered under NPI 1629250956. 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 1230 MAMARONECK AVE STE 100, White Plains, NY 10605. 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 |
|---|---|---|
| 267893 | NY | Surgery of the Hand (Surgery) Physician primary |
This provider holds licence 267893 issued in NY. 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 - Hand Surgery
- PAC ID
- 9335379015
- Enrollment ID
- I20140225000200
Medicare enrolment is recorded as approved under the provider type Practitioner - Hand Surgery. 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 Surgery of the Hand covers
A surgeon with expertise in the investigation, preservation and restoration by medical, surgical and rehabilitative means, of all structures of the upper extremity directly affecting the form and function of the hand and wrist. NUCC Health Care Provider Taxonomy, code 2086S0105X
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 | 1629250956 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 28, 2007 |
| Last updated | Mar 25, 2021 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | M.D. |
| Practice address |
1230 MAMARONECK AVE STE 100 White Plains, NY 10605 (914) 864-4263 |
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 | 6 | 2 | 9 | 2 | 5 | 0 | 9 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 4 | 9 | 4 | 5 | 0 | 9 | 1 |
Sum = 64 · next multiple of 10 = 70 · check digit = 6 · actual last digit = 6
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.