Frederick Ashby, MD, PHD, MPH
NPI 1598551335 · Internal Medicine Physician · Jacksonville, FL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Frederick Ashby, MD, PHD, MPH is a Internal Medicine Physician provider in Jacksonville, FL (NPI 1598551335).
Provider details
- NPI number
- 1598551335
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD, MPH
- Sex
- Male
- Sole proprietor
- No
- License
- TRN42459 (FL)
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
1 yr 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
- 2025-04-17
- Last updated
- 2025-06-24
- Certified
- 2025-06-24
Frequently asked questions
- What is Frederick Ashby's NPI number?
- Frederick Ashby's National Provider Identifier (NPI) is 1598551335, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Frederick Ashby's specialty?
- Frederick Ashby is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Frederick Ashby located?
- Frederick Ashby's practice location on file with NPPES is 4500 San Pablo Rd S, Jacksonville, FL 32224-1865.
- What is Frederick Ashby's phone number?
- The practice phone number listed in the NPPES registry for Frederick Ashby is (904) 953-2000.
- Does Frederick Ashby accept Medicare?
- Frederick Ashby is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Frederick Ashby's NPI active?
- Yes — Frederick Ashby's NPI (1598551335) is active in the NPPES registry as of the last update on 2025-06-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.