Troy Williams, M.D.
NPI 1821209495 · Orthopaedic Surgery Physician · Warren, MI
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Troy Williams, M.D. is a Orthopaedic Surgery Physician provider in Warren, MI (NPI 1821209495).
Provider details
- NPI number
- 1821209495
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301086207 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
254 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 57 | $89 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 48 | $125 |
| X-Ray of Hand, Minimum of 3 Views73130 | 44 | $46 |
| X-Ray of Wrist, Minimum of 3 Views73110 | 36 | $40 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 30 | $164 |
| Injection Into Tendon Or Ligament20550 | 23 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 32 | 27 |
| Tramadol Hcl | 19 | 18 |
| Methylprednisolone | 15 | 12 |
| Clindamycin Hcl | 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
Registry dates
- Enumerated
- 2007-05-25
- Last updated
- 2013-11-08
Frequently asked questions
- What is Troy Williams's NPI number?
- Troy Williams's National Provider Identifier (NPI) is 1821209495, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Troy Williams's specialty?
- Troy Williams is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Troy Williams located?
- Troy Williams's practice location on file with NPPES is 11012 E 13 Mile Rd, Warren, MI 48093-2572.
- What is Troy Williams's phone number?
- The practice phone number listed in the NPPES registry for Troy Williams is (586) 573-6880.
- Does Troy Williams accept Medicare?
- Troy Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Troy Williams's NPI active?
- Yes — Troy Williams's NPI (1821209495) is active in the NPPES registry as of the last update on 2013-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.