Karl Eisbach, M.D.
Karl Eisbach, M.D. is an Otolaryngology/Facial Plastic Surgery Physician in Albuquerque, NM, registered under NPI 1841329216. This provider registers 5 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 7800 CONSTITUTION AVE NE, Albuquerque, NM 87110. 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 |
|---|---|---|
| 77-154 | NM | Otolaryngology/Facial Plastic Surgery… primary |
| 77 154 | NM | Plastic Surgery Within the Head and Neck… |
| 77-154 | NM | Plastic and Reconstructive Surgery… |
| 77-154 | NM | Facial Plastic Surgery Physician |
| 77-154 | NM | Plastic Surgery within the Head & Neck… |
This provider holds licence 77-154 issued in NM. 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 Otolaryngology/Facial Plastic Surgery covers
An otolaryngologist who specializes in the diagnosis and surgical treatment of head and neck conditions. NUCC Health Care Provider Taxonomy, code 207YX0905X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207YX0905X | Otolaryngology/Facial Plastic Surgery Physician Otolaryngology/Facial Plastic Surgery | 77-154 | NM | primary |
| 2082S0099X | Plastic Surgery Within the Head and Neck (Plastic Surgery) Physician Plastic Surgery Within the Head and Neck | 77 154 | NM | |
| 2086S0122X | Plastic and Reconstructive Surgery Physician Plastic and Reconstructive Surgery | 77-154 | NM | |
| 207YS0123X | Facial Plastic Surgery Physician Facial Plastic Surgery | 77-154 | NM | |
| 207YX0007X | Plastic Surgery within the Head & Neck (Otolaryngology) Physician Plastic Surgery within the Head & Neck | 77-154 | NM |
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 | 1841329216 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 3, 2007 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | M.D. |
| Practice address |
7800 CONSTITUTION AVE NE Albuquerque, NM 87110 (505) 332-7800 Fax (505) 559-9617 |
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 | 8 | 4 | 1 | 3 | 2 | 9 | 2 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 8 | 1 | 6 | 2 | 9 | 2 | 2 |
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.