IndividualActive
Guy Markham, DDS
NPI 1861469306 · Dentist · Santa Ynez, CA
Guy Markham, DDS is a Dentist provider in Santa Ynez, CA (NPI 1861469306).
Provider details
- NPI number
- 1861469306
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- No
- License
- 16217 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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.
Practice location
90 Via Juana Lane
Santa Ynez, CA 93460-9405
Phone: (805) 688-7070
Fax: (805) 686-2060
Street-level locationGet directions
Mailing address
922 Vista Del Rio
Santa Maria, CA 93458
Registry dates
- Enumerated
- 2006-03-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Guy Markham's NPI number?
- Guy Markham's National Provider Identifier (NPI) is 1861469306, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Guy Markham's specialty?
- Guy Markham is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Guy Markham located?
- Guy Markham's practice location on file with NPPES is 90 Via Juana Lane, Santa Ynez, CA 93460-9405.
- What is Guy Markham's phone number?
- The practice phone number listed in the NPPES registry for Guy Markham is (805) 688-7070.
- Is Guy Markham's NPI active?
- Yes — Guy Markham's NPI (1861469306) 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.