Clifford Marks, D.D.S.
NPI 1396741484 · General Practice Dentistry · Campbell, CA
Enrolled with Medicare as Order and Referring Only - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Clifford Marks, D.D.S. is a General Practice Dentistry provider in Campbell, CA (NPI 1396741484).
Provider details
- NPI number
- 1396741484
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- D.D.S.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 35143 (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
21 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 · 1 distinct drug on file.
| Drug | Part D claims (2024) |
|---|---|
| Amoxicillin | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-22
- Last updated
- 2008-06-21
Frequently asked questions
- What is Clifford Marks's NPI number?
- Clifford Marks's National Provider Identifier (NPI) is 1396741484, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Clifford Marks's specialty?
- Clifford Marks is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Clifford Marks located?
- Clifford Marks's practice location on file with NPPES is 1580 Winchester Blvd, Campbell, CA 95008-0519.
- What is Clifford Marks's phone number?
- The practice phone number listed in the NPPES registry for Clifford Marks is (408) 378-3489.
- Does Clifford Marks accept Medicare?
- Clifford Marks is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Clifford Marks's NPI active?
- Yes — Clifford Marks's NPI (1396741484) is active in the NPPES registry as of the last update on 2008-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.