William Jackson, M.D., PH.D.
NPI 1316144215 · Internal Medicine Physician · Honolulu, HI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Jackson, M.D., PH.D. is a Internal Medicine Physician provider in Honolulu, HI (NPI 1316144215).
Provider details
- NPI number
- 1316144215
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 27784 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 34 |
| Tamsulosin Hcl | 25 |
| Levothyroxine Sodium | 23 |
| Levetiracetam | 15 |
| Carvedilol | 14 |
| Amlodipine Besylate | 12 |
| Escitalopram Oxalate | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 1525 Kalakaua AveHonolulu, HI 96826-2409Phone: (808) 354-5987Fax: (808) 468-4548
Registry dates
- Enumerated
- 2007-07-02
- Last updated
- 2025-04-10
- Certified
- 2025-04-10
Frequently asked questions
- What is William Jackson's NPI number?
- William Jackson's National Provider Identifier (NPI) is 1316144215, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Jackson's specialty?
- William Jackson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Jackson located?
- William Jackson's practice location on file with NPPES is 500 Ala Moana Blvd Ste 7400, Honolulu, HI 96813-4902.
- What is William Jackson's phone number?
- The practice phone number listed in the NPPES registry for William Jackson is (808) 354-5987.
- Does William Jackson accept Medicare?
- William Jackson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Jackson's NPI active?
- Yes — William Jackson's NPI (1316144215) is active in the NPPES registry as of the last update on 2025-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.