William Thoman, M.D.
NPI 1821206392 · Neurological Surgery Physician · Denver, CO
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Thoman, M.D. is a Neurological Surgery Physician provider in Denver, CO (NPI 1821206392).
Provider details
- NPI number
- 1821206392
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 35097946 (OH)
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
19 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 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 33 | 16 |
| Prednisone | 29 | 20 |
| Duloxetine Hcl | 13 | — |
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
Registry dates
- Enumerated
- 2007-05-18
- Last updated
- 2021-06-04
- Certified
- 2021-06-04
Frequently asked questions
- What is William Thoman's NPI number?
- William Thoman's National Provider Identifier (NPI) is 1821206392, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Thoman's specialty?
- William Thoman is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Thoman located?
- William Thoman's practice location on file with NPPES is 2045 N Franklin St, Denver, CO 80205-5437.
- What is William Thoman's phone number?
- The practice phone number listed in the NPPES registry for William Thoman is (303) 338-4545.
- Does William Thoman accept Medicare?
- William Thoman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Thoman's NPI active?
- Yes — William Thoman's NPI (1821206392) is active in the NPPES registry as of the last update on 2021-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.