Cynthia Horton, MD
NPI 1558353920 · Family Medicine Physician · Waimea, HI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cynthia Horton, MD is a Family Medicine Physician provider in Waimea, HI (NPI 1558353920).
Provider details
- NPI number
- 1558353920
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD23104 (OR)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 72 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 114 | 27 |
| Losartan Potassium | 101 | 27 |
| Lisinopril | 87 | 23 |
| Gabapentin | 85 | 25 |
| Simvastatin | 76 | 25 |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 74 | 19 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-08-22
- Last updated
- 2020-12-30
- Certified
- 2020-12-23
Frequently asked questions
- What is Cynthia Horton's NPI number?
- Cynthia Horton's National Provider Identifier (NPI) is 1558353920, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cynthia Horton's specialty?
- Cynthia Horton is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Cynthia Horton located?
- Cynthia Horton's practice location on file with NPPES is 4346 Waimea Canyon Drive, Waimea, HI 96796-0337.
- What is Cynthia Horton's phone number?
- The practice phone number listed in the NPPES registry for Cynthia Horton is (808) 338-9431.
- Does Cynthia Horton accept Medicare?
- Cynthia Horton is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cynthia Horton's NPI active?
- Yes — Cynthia Horton's NPI (1558353920) is active in the NPPES registry as of the last update on 2020-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.