William Stinson, MD
NPI 1336112911 · Internal Medicine Physician · Crystal Lake, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Stinson, MD is a Internal Medicine Physician provider in Crystal Lake, IL (NPI 1336112911).
Provider details
- NPI number
- 1336112911
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036104141 (IL)
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
20 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
2,353 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 573 | $125 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 506 | $129 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 419 | $178 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 253 | $16 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 233 | $14 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 151 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 675 | 239 |
| Levothyroxine Sodium | 498 | 164 |
| Amlodipine Besylate | 489 | 177 |
| Losartan Potassium | 379 | 121 |
| Lisinopril | 285 | 96 |
| Pantoprazole Sodium | 271 | 83 |
| Rosuvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-13
- Last updated
- 2022-07-21
Frequently asked questions
- What is William Stinson's NPI number?
- William Stinson's National Provider Identifier (NPI) is 1336112911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Stinson's specialty?
- William Stinson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Stinson located?
- William Stinson's practice location on file with NPPES is 650 Dakota St Ste a, Crystal Lake, IL 60012.
- What is William Stinson's phone number?
- The practice phone number listed in the NPPES registry for William Stinson is (815) 338-6600.
- Does William Stinson accept Medicare?
- William Stinson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Stinson's NPI active?
- Yes — William Stinson's NPI (1336112911) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.