Harold Jackson, DO
NPI 1235126475 · Family Medicine Physician · Riverside, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Harold Jackson, DO is a Family Medicine Physician provider in Riverside, CA (NPI 1235126475).
Provider details
- NPI number
- 1235126475
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 20A3741 (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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 30 | 21 |
| Rosuvastatin Calcium | 20 | 12 |
| Levothyroxine Sodium | 18 | 16 |
| Alendronate Sodium | 14 | — |
| Lisinopril | 13 | 12 |
| Tamsulosin Hcl | 13 | — |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-03
- Last updated
- 2017-10-23
Frequently asked questions
- What is Harold Jackson's NPI number?
- Harold Jackson's National Provider Identifier (NPI) is 1235126475, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Harold Jackson's specialty?
- Harold Jackson is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Harold Jackson located?
- Harold Jackson's practice location on file with NPPES is 4646 Brockton Ave, Riverside, CA 92506-0102.
- What is Harold Jackson's phone number?
- The practice phone number listed in the NPPES registry for Harold Jackson is (951) 774-2942.
- Does Harold Jackson accept Medicare?
- Harold Jackson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Harold Jackson's NPI active?
- Yes — Harold Jackson's NPI (1235126475) is active in the NPPES registry as of the last update on 2017-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.