Diane Ferguson, M.D.
NPI 1447294384 · Internal Medicine Physician · Redondo Beach, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Ferguson, M.D. is a Internal Medicine Physician provider in Redondo Beach, CA (NPI 1447294384).
Provider details
- NPI number
- 1447294384
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G079787 (CA)
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 401 | 151 |
| Amlodipine Besylate | 260 | 91 |
| Losartan Potassium | 226 | 77 |
| Rosuvastatin Calcium | 158 | 60 |
| Lisinopril | 156 | 57 |
| Hydrochlorothiazide | 126 | 45 |
| Metformin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-15
- Last updated
- 2021-11-29
Frequently asked questions
- What is Diane Ferguson's NPI number?
- Diane Ferguson's National Provider Identifier (NPI) is 1447294384, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Ferguson's specialty?
- Diane Ferguson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diane Ferguson located?
- Diane Ferguson's practice location on file with NPPES is 502 Torrance Blvd, Redondo Beach, CA 90277-3413.
- What is Diane Ferguson's phone number?
- The practice phone number listed in the NPPES registry for Diane Ferguson is (310) 792-3647.
- Does Diane Ferguson accept Medicare?
- Diane Ferguson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Ferguson's NPI active?
- Yes — Diane Ferguson's NPI (1447294384) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.