David Feldman, MD
David Feldman, MD is a Blood Banking & Transfusion Medicine Physician in Buffalo, NY, registered under NPI 1134181324. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is ELM AND CARLTON ST, Buffalo, NY 14263. 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 |
|---|---|---|
| M0071 | TX | Blood Banking & Transfusion Medicine… primary |
| 216993 | NY | Clinical Pathology Physician |
| M0071 | TX | Molecular Genetic Pathology (Pathology)… |
| 216993 | NY | Blood Banking & Transfusion Medicine… |
| 216993 | NY | Molecular Genetic Pathology (Pathology)… |
| M0071 | TX | Clinical Pathology/Laboratory Medicine… |
Licences are recorded in 2 states: TX, NY. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
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.
Licensed in 2 states
This provider holds licences in 2 states: New York and Texas. The practice address on file is in Buffalo, NY, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- 216993
- Specialty
- Clinical Pathology Physician
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Blood Banking & Transfusion Medicine covers
A physician who specializes in blood banking/transfusion medicine is responsible for the maintenance of an adequate blood supply, blood donor and patient-recipient safety and appropriate blood utilization. Pre-transfusion compatibility testing and antibody testing assure that blood transfusions, when indicated, are as safe as possible. This physician directs the preparation and safe use of specially prepared blood components, including red blood cells, white blood cells, platelets and plasma constituents, and marrow or stem cells for transplantation. NUCC Health Care Provider Taxonomy, code 207ZB0001X
All registered taxonomy codes
This provider registers 6 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207ZB0001X | Blood Banking & Transfusion Medicine Physician Blood Banking & Transfusion Medicine | M0071 | TX | primary |
| 207ZC0006X | Clinical Pathology Physician Clinical Pathology | 216993 | NY | |
| 207ZP0007X | Molecular Genetic Pathology (Pathology) Physician Molecular Genetic Pathology | M0071 | TX | |
| 207ZB0001X | Blood Banking & Transfusion Medicine Physician Blood Banking & Transfusion Medicine | 216993 | NY | |
| 207ZP0007X | Molecular Genetic Pathology (Pathology) Physician Molecular Genetic Pathology | 216993 | NY | |
| 207ZP0105X | Clinical Pathology/Laboratory Medicine Physician Clinical Pathology/Laboratory Medicine | M0071 | TX |
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 | 1134181324 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 4, 2006 |
| Last updated | Aug 26, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
ELM AND CARLTON ST Buffalo, NY 14263 (716) 845-2300 Fax (716) 845-3549 |
| Mailing address |
7400 MERTON MINTER ST 113 San Antonio, TX 78229 |
| Other identifiers |
172081501
· Medicaid (TX) 172081502 · Medicaid (TX) 172081503 · Other (TX) |
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 | 1 | 3 | 4 | 1 | 8 | 1 | 3 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 6 | 4 | 2 | 8 | 2 | 3 | 4 |
Sum = 56 · next multiple of 10 = 60 · check digit = 4 · actual last digit = 4
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.