Clifford Owen Marks, DDS
- Part D claims, 2024
- 27
- Industry payments
- $15
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Practice address
- 1580 Winchester Blvd, Campbell, CA 95008-0519
- Practice phone
- Call (408) 378-3489
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hughes Dental Group
Dental practice · Campbell, California
Find Clifford Marks' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Clifford Owen Marks is a general practice dentistry in Campbell, California
Clifford Marks practices at Hughes Dental Group in Campbell, California.
Clifford Marks' NPI, 1396741484, was assigned on June 22, 2005. Clifford Marks holds California license 35143.
- NPI
- 1396741484NPI Registry (opens in a new tab)
- NPI enumeration date
- June 22, 2005
- NPI status
- Active
- Practice phone
- (408) 378-3489
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Clifford Owen Marks practices at Hughes Dental Group in Campbell, California
Clifford Marks' primary practice is Hughes Dental Group, at 1580 Winchester Blvd, Campbell, CA 95008-0519. The practice phone is (408) 378-3489.
- Hughes Dental Group1580 Winchester Blvd, Campbell, CA 95008-0519Phone(408) 378-3489
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Clifford Owen Marks is affiliated with 1 site of care and 1 medical group
Clifford Marks' primary practice is Hughes Dental Group in Campbell, California. Dmand AI also links Clifford Marks to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Clifford Owen Marks' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Clifford Marks practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hughes Dental Group | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Clifford Owen Marks is one of 7,627 general practice dentistrys in California
General practice is Clifford Marks' primary specialty in the NPI Registry, under taxonomy code 1223G0001X. Clifford Marks is licensed in California.
Specialties and state licenses
- General practice dentistry, CaliforniaPrimary
General practice dentistrys near Clifford Marks
Counts of general practice dentistrys with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Clifford Owen Marks wrote 27 Medicare Part D claims in 2024
In 2024, Clifford Marks wrote 27 Medicare Part D claims for 14 patients. 100% of them were for generic drugs.
Drug classes CMS tracks in Clifford Marks' Part D claims, 2024
- Antibiotics56%15 of 27 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Clifford Owen Marks received $15 in industry payments in 2025
CMS Open Payments shows 1 general payment to Clifford Marks from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Straumann USA LLC paid the most, $15.
Companies that paid Clifford Marks the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Clifford Owen Marks's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Clifford Owen Marks
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Clifford Owen Marks' NPI number?
Clifford Owen Marks' NPI number is 1396741484. It was assigned on June 22, 2005, and it is active in the NPI Registry.
What does Clifford Owen Marks specialize in?
Clifford Owen Marks is a general practice dentistry in Campbell, California. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).
Where does Clifford Owen Marks practice?
Clifford Marks practices at 1580 Winchester Blvd, Campbell, CA 95008-0519. Clifford Marks' primary practice is Hughes Dental Group in Campbell, California. Dmand AI also links Clifford Marks to 1 medical group.
What is Clifford Owen Marks' office phone number?
The practice phone on file for Clifford Marks is (408) 378-3489.
What is Clifford Owen Marks' medical license number?
Clifford Marks holds California license 35143.
Has Clifford Owen Marks received payments from drug or device companies?
CMS Open Payments shows $15 in general payments to Clifford Marks from 1 company from 2025 to 2025. The largest total came from Straumann USA LLC.
How long has Clifford Owen Marks been practicing?
Clifford Marks' NPI was assigned in 2005.
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