William Charles, D.O.
NPI 1861461832 · Addiction Psychiatry Physician · Crystal River, FL
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Charles, D.O. is a Addiction Psychiatry Physician provider in Crystal River, FL (NPI 1861461832).
Provider details
- NPI number
- 1861461832
- Entity type
- Individual
- Primary specialty
- Addiction Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- OS9037 (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
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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 123 | 13 |
| Ibuprofen | 78 | — |
| Cyclobenzaprine Hcl | 74 | — |
| Tizanidine Hcl | 62 | — |
| Celecoxib | 41 | — |
| Naproxen | 28 | — |
| Baclofen | 27 | — |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 23 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-14
- Last updated
- 2015-07-08
Frequently asked questions
- What is William Charles's NPI number?
- William Charles's National Provider Identifier (NPI) is 1861461832, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Charles's specialty?
- William Charles is listed in the NPPES registry with a primary specialty of Addiction Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is William Charles located?
- William Charles's practice location on file with NPPES is 9162 W Harbor Isle Ct, Crystal River, FL 34429-8185.
- What is William Charles's phone number?
- The practice phone number listed in the NPPES registry for William Charles is (352) 563-5859.
- Does William Charles accept Medicare?
- William Charles is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Charles's NPI active?
- Yes — William Charles's NPI (1861461832) is active in the NPPES registry as of the last update on 2015-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.