IndividualActive
Roy Markham, M. D.
NPI 1588654925 · Allergy & Immunology Physician · West Columbia, SC
Provider details
- NPI number
- 1588654925
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M. D.
- Sex
- Male
- Sole proprietor
- No
- License
- 13846 (SC)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
103 Midlands Ct
West Columbia, SC 29169-3456
Phone: (803) 794-3581
Fax: (803) 791-7286
Street-level locationGet directions
Mailing address
Po Box 2137
Skyland, NC 28776-2137
Registry dates
- Enumerated
- 2005-10-26
- Last updated
- 2013-02-05
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.