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Melvin Markham, DDS
NPI 1073028221 · General Practice Dentistry · Twin Peaks, CA
Melvin Markham, DDS is a General Practice Dentistry provider in Twin Peaks, CA (NPI 1073028221).
Provider details
- NPI number
- 1073028221
- Entity type
- Individual
- Primary specialty
- General Practice DentistryDental Providers
- Credential
- DDS
- Sex
- Male
- Sole proprietor
- Yes
- License
- 27030 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
Established profile(69/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
26108 Highway 189
Twin Peaks, CA 92391
Phone: (909) 337-2013
Street-level locationGet directions
Mailing address
Po Box D
Twin Peaks, CA 92391-0280
Registry dates
- Enumerated
- 2017-12-11
- Last updated
- 2017-12-11
Frequently asked questions
- What is Melvin Markham's NPI number?
- Melvin Markham's National Provider Identifier (NPI) is 1073028221, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melvin Markham's specialty?
- Melvin Markham is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
- Where is Melvin Markham located?
- Melvin Markham's practice location on file with NPPES is 26108 Highway 189, Twin Peaks, CA 92391.
- What is Melvin Markham's phone number?
- The practice phone number listed in the NPPES registry for Melvin Markham is (909) 337-2013.
- Is Melvin Markham's NPI active?
- Yes — Melvin Markham's NPI (1073028221) is active in the NPPES registry as of the last update on 2017-12-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.