David Greenblott, DPM
David Greenblott, DPM is a provider specialising in Podiatrist in Haverhill, MA, registered under NPI 1265546212. This provider registers 2 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 62 BROWN ST STE 206, Haverhill, MA 01830. 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 |
|---|---|---|
| PDF2036 | MA | Podiatrist primary |
| 2036 | MA | Sports Medicine Podiatrist |
This provider holds licence PDF2036 issued in MA. 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 - Podiatry
- PAC ID
- 1052320777
- Enrollment ID
- I20060407000304
Medicare enrolment is recorded as approved under the provider type Practitioner - Podiatry. 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 Podiatrist covers
A podiatrist is a person qualified by a Doctor of Podiatric Medicine (D.P.M.) degree, licensed by the state, and practicing within the scope of that license. Podiatrists diagnose and treat foot diseases and deformities. They perform medical, surgical and other operative procedures, prescribe corrective devices and prescribe and administer drugs and physical therapy. NUCC Health Care Provider Taxonomy, code 213E00000X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 213E00000X | Podiatrist | PDF2036 | MA | primary |
| 213ES0000X | Sports Medicine Podiatrist Sports Medicine | 2036 | MA |
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 | 1265546212 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 18, 2006 |
| Last updated | Feb 25, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | DPM |
| Practice address |
62 BROWN ST STE 206 Haverhill, MA 01830 (978) 556-9700 Fax (617) 567-2121 |
| Mailing address |
PO BOX 208 West Newbury, MA 01985 |
| Other identifiers |
23-7425849
· Other (MA) AA3102 · Other (MA) 000000007083 · Other (MA) 2700077 · Other (MA) 98140201 · Other (MA) 043043013M · Other (MA) 0358509 · Medicaid (MA) 1230446 · Other (MA) 0006166 · Other (MA) 2700023 · Other (MA) 480019491 · Other (MA) TUFTS · Other (MA) Y70996 · Other (MA) |
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 | 2 | 6 | 5 | 5 | 4 | 6 | 2 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 3 | 5 | 1 | 4 | 3 | 2 | 2 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
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.