Keith Gronbach, D.D.S.
NPI 1992853204 · Oral and Maxillofacial Surgery (Dentist) · Lafayette, CA
Keith Gronbach, D.D.S. is a Oral and Maxillofacial Surgery (Dentist) provider in Lafayette, CA (NPI 1992853204).
Provider details
- NPI number
- 1992853204
- Entity type
- Individual
- Primary specialty
- Oral and Maxillofacial Surgery (Dentist)Dental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- No
- License
- 44317 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Chlorhexidine Gluconate | 138 | 121 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 113 | 91 |
| Amoxicillin | 102 | 87 |
| Naproxen | 74 | 65 |
| Ibuprofen | 24 | 21 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 19 | 15 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-05
- Last updated
- 2020-07-22
- Certified
- 2020-07-22
Frequently asked questions
- What is Keith Gronbach's NPI number?
- Keith Gronbach's National Provider Identifier (NPI) is 1992853204, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keith Gronbach's specialty?
- Keith Gronbach is listed in the NPPES registry with a primary specialty of Oral and Maxillofacial Surgery (Dentist) (Dental Providers).
- Where is Keith Gronbach located?
- Keith Gronbach's practice location on file with NPPES is 3799 Mt Diablo Blvd, Lafayette, CA 94549-3538.
- What is Keith Gronbach's phone number?
- The practice phone number listed in the NPPES registry for Keith Gronbach is (925) 283-4050.
- Is Keith Gronbach's NPI active?
- Yes — Keith Gronbach's NPI (1992853204) is active in the NPPES registry as of the last update on 2020-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.