Roy Markham, M. D.
NPI 1588654925 · Allergy & Immunology Physician · West Columbia, SC
Roy Markham, M. D. is a Allergy & Immunology Physician provider in West Columbia, SC (NPI 1588654925).
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
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
Mailing address
Registry dates
- Enumerated
- 2005-10-26
- Last updated
- 2013-02-05
Frequently asked questions
- What is Roy Markham's NPI number?
- Roy Markham's National Provider Identifier (NPI) is 1588654925, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roy Markham's specialty?
- Roy Markham is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Roy Markham located?
- Roy Markham's practice location on file with NPPES is 103 Midlands Ct, West Columbia, SC 29169-3456.
- What is Roy Markham's phone number?
- The practice phone number listed in the NPPES registry for Roy Markham is (803) 794-3581.
- Is Roy Markham's NPI active?
- Yes — Roy Markham's NPI (1588654925) is active in the NPPES registry as of the last update on 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.