Ronald Mayfield, M.D.
NPI 1134199755 · Endocrinology, Diabetes & Metabolism Physician · Spartanburg, SC
Enrolled with Medicare as Order and Referring Only - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ronald Mayfield, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider in Spartanburg, SC (NPI 1134199755).
Provider details
- NPI number
- 1134199755
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 9056 (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
- 2006-01-25
- Last updated
- 2011-08-09
Frequently asked questions
- What is Ronald Mayfield's NPI number?
- Ronald Mayfield's National Provider Identifier (NPI) is 1134199755, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Mayfield's specialty?
- Ronald Mayfield is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Mayfield located?
- Ronald Mayfield's practice location on file with NPPES is 853 N Church St, Spartanburg, SC 29303-3098.
- What is Ronald Mayfield's phone number?
- The practice phone number listed in the NPPES registry for Ronald Mayfield is (864) 560-6419.
- Does Ronald Mayfield accept Medicare?
- Ronald Mayfield is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ronald Mayfield's NPI active?
- Yes — Ronald Mayfield's NPI (1134199755) is active in the NPPES registry as of the last update on 2011-08-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.