Daniel Collison, M.D.
Daniel Collison, M.D. is a General Practice Physician in Hanover, NH, registered under NPI 1235102922. 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 7 PLEASANT ST, Hanover, NH 03755. 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 |
|---|---|---|
| 8614 | NH | General Practice Physician primary |
| 8614 | NH | Dermatology Physician |
| 8614 | NH | MOHS-Micrographic Surgery Physician |
| 8614 | NH | Procedural Dermatology Physician |
This provider holds licence 8614 issued in NH. 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 General Practice covers
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. NUCC Health Care Provider Taxonomy, code 208D00000X
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 | |
|---|---|---|---|---|
| 208D00000X | General Practice Physician | 8614 | NH | primary |
| 207N00000X | Dermatology Physician | 8614 | NH | |
| 207ND0101X | MOHS-Micrographic Surgery Physician MOHS-Micrographic Surgery | 8614 | NH | |
| 207NS0135X | Procedural Dermatology Physician Procedural Dermatology | 8614 | NH |
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 | 1235102922 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 11, 2006 |
| Last updated | Oct 14, 2019 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | M.D. |
| Practice address |
7 PLEASANT ST Hanover, NH 03755 (603) 643-5748 |
| Other identifiers |
4248210
· Other E52148 · Other 0002051 · Medicaid (VT) 070011185 · Other 07502 · Other 7323862 · Other 008614 · Other 0106540Y0NH01 · Other 20234 · Other 80002051 · Medicaid (NH) P378192 · Other 3083123 · Other |
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 | 3 | 5 | 1 | 0 | 2 | 9 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 6 | 5 | 2 | 0 | 4 | 9 | 4 |
Sum = 58 · next multiple of 10 = 60 · 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.