Gunnell, M.D., Inc
Gunnell, M.D., Inc is a healthcare organization registered as Nephrology Physician in Napa, CA, holding Type 2 (organization) NPI 1255376398 since 2006. The authorized official on file is Jennifer Gunnell, Practice Owner/Head Physician.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1255376398 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Gunnell, M.D., Inc |
| Practice address | 3230 BEARD RD, Napa, CA, 94558 |
| Phone | 7072537005 |
| Fax | 7072537271 |
| Enumeration date | 2006-06-20 |
| Last updated in NPPES | 2020-08-22 |
Authorized official
| Name | Jennifer Gunnell |
|---|---|
| Title | Practice Owner/Head Physician |
| Phone | 7072537005 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207RN0300X | Nephrology Physician | Secondary | A62275 | CA |
| 207RN0300X | Nephrology Physician | Primary | G78785 | CA |
Copy-ready billing details
Provider: Gunnell, M.D., Inc NPI: 1255376398 Taxonomy: 207RN0300X (Nephrology Physician) Address: 3230 BEARD RD, Napa, CA, 94558
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1386625754 | Geetha Narayan | Individual | Nephrology Physician | Napa, CA |
| 1174501340 | Stephen Gugenheim | Individual | Plastic Surgery within the Head & Neck (Otolaryngology) Physician | Napa, CA |
| 1316990724 | Debra Trnavsky-Hobbs | Individual | Hospitalist Physician | Napa, CA |
| 1659392223 | Edwin Chiu | Individual | Nephrology Physician | Napa, CA |
| 1346263761 | Laurel Antonucci | Individual | Clinical Social Worker | Napa, CA |
| 1073537460 | Maria-Elisa Perez | Individual | Registered Dietitian | Napa, CA |
| 1710093349 | Nagarathna Manjappa | Individual | Nephrology Physician | Napa, CA |
| 1477647212 | George Friedman | Individual | Family Medicine Physician | Napa, CA |
Verify this record
Cross-check NPI 1255376398 against the authoritative CMS record: view Gunnell, M.D., Inc on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
Where is Gunnell, M.D., Inc located?
How current is this record?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-08-22.