John Dornhoffer, MD
John Dornhoffer, MD is an Otology & Neurotology Physician in Little Rock, AR, registered under NPI 1992895486. 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 4301 W MARKHAM ST # 783, Little Rock, AR 72205. 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 |
|---|---|---|
| N-8339 | AR | Otology & Neurotology Physician primary |
| N-8339 | AR | Otolaryngology/Facial Plastic Surgery… |
This provider holds licence N-8339 issued in AR. 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 - Otolaryngology
- PAC ID
- 4587691837
- Enrollment ID
- I20050719000752
Medicare enrolment is recorded as approved under the provider type Practitioner - Otolaryngology. 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 Otology & Neurotology covers
An otolaryngologist who treats diseases of the ear and temporal bone, including disorders of hearing and balance. The additional training in otology and neurotology emphasizes the study of embryology, anatomy, physiology, epidemiology, pathophysiology, pathology, genetics, immunology, microbiology and the etiology of diseases of the ear and temporal bone. NUCC Health Care Provider Taxonomy, code 207YX0901X
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 | |
|---|---|---|---|---|
| 207YX0901X | Otology & Neurotology Physician Otology & Neurotology | N-8339 | AR | primary |
| 207YX0905X | Otolaryngology/Facial Plastic Surgery Physician Otolaryngology/Facial Plastic Surgery | N-8339 | AR |
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 | 1992895486 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 13, 2006 |
| Last updated | Feb 26, 2008 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
4301 W MARKHAM ST # 783 Little Rock, AR 72205 (501) 686-8000 Fax (501) 526-5148 |
| Other identifiers |
P00020399
· Other (AR) |
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 | 9 | 9 | 2 | 8 | 9 | 5 | 4 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 9 | 9 | 2 | 7 | 9 | 1 | 4 | 7 |
Sum = 74 · next multiple of 10 = 80 · 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.