Keith Chertok, DDS
NPI 1427077973 · Periodontics · Berkeley, CA
Keith Chertok, DDS is a Periodontics provider in Berkeley, CA (NPI 1427077973).
Provider details
- NPI number
- 1427077973
- Entity type
- Individual
- Primary specialty
- PeriodonticsDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- Yes
- License
- 38634 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 212 | 168 |
| Chlorhexidine Gluconate | 198 | 168 |
| Acetaminophen With Codeinebrand: Acetaminophen-Codeine | 132 | 118 |
| Lorazepam | 116 | 101 |
| Azithromycin | 39 | 31 |
| Ibuprofen | 27 | 26 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 11 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,000 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Keith Chertok's NPI number?
- Keith Chertok's National Provider Identifier (NPI) is 1427077973, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Keith Chertok's specialty?
- Keith Chertok is listed in the NPPES registry with a primary specialty of Periodontics (Dental Providers).
- Where is Keith Chertok located?
- Keith Chertok's practice location on file with NPPES is 2620 Ashby Ave Ste 101, Berkeley, CA 94705-2208.
- What is Keith Chertok's phone number?
- The practice phone number listed in the NPPES registry for Keith Chertok is (510) 548-0150.
- Is Keith Chertok's NPI active?
- Yes — Keith Chertok's NPI (1427077973) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.