Ian Beiser, D.P.M.
Ian Beiser, D.P.M. is a provider specialising in Podiatrist in Washington, DC, registered under NPI 1225025737. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 1145 19TH ST NW STE 605, Washington, DC 20036. 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 |
|---|---|---|
| PO497 | DC | Podiatrist primary |
| PO497 | DC | Foot Surgery Podiatrist |
This provider holds licence PO497 issued in DC. 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
- 8426161134
Enrolled in Medicare 2 times, across 2 states:
| State | Enrollment ID | Provider type |
|---|---|---|
| District of Columbia | I20110113000223 | Practitioner - Podiatry |
| Maryland | I20160127001835 | Practitioner - Podiatry |
Medicare enrolment is recorded as approved under the provider type Practitioner - Podiatry. There are 2 separate enrolment records across 2 states (DC, MD). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. 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 | PO497 | DC | primary |
| 213ES0131X | Foot Surgery Podiatrist Foot Surgery | PO497 | DC |
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 | 1225025737 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 29, 2005 |
| Last updated | May 26, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | D.P.M. |
| Practice address |
1145 19TH ST NW STE 605 Washington, DC 20036 (202) 833-9109 Fax (202) 833-5762 |
| Mailing address |
PO BOX 825159 Philadelphia, PA 19182 |
| Other identifiers |
0261551
· Medicaid (DC) |
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 | 2 | 5 | 0 | 2 | 5 | 7 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 4 | 5 | 0 | 2 | 1 | 7 | 6 |
Sum = 53 · next multiple of 10 = 60 · check digit = 7 · actual last digit = 7
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.