Wayne Williamson, MD
NPI 1699828061 · Geriatric Medicine (Internal Medicine) Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wayne Williamson, MD is a Geriatric Medicine (Internal Medicine) Physician provider in Chicago, IL (NPI 1699828061).
Provider details
- NPI number
- 1699828061
- Entity type
- Individual
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036059450 (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
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
565 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) |
|---|---|---|
| Chronic Care Management Services for Two Or More Chronic Conditions, First 30 Minutes Provided Personally By Health Care Professional, Per Calendar Month99491 | 228 | $87 |
| Residence Visit for Established Patient With High Level of Medical Decision Making, Per Day, If Using Time, at Least 60 Minutes99350 | 147 | $191 |
| Physician Or Allowed Practitioner Supervision of a Patient Receiving Medicare-Covered Services Provided By a Participating Home Health Agency (patient Not Present) Requiring Complex and Multidisciplinary Care Modalities Involving Regular Physician Or AllowG0181 | 91 | $108 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 55 | $94 |
| Assessment of and Care Planning for Patient With Impaired Thought Processing, Typically 60 Minutes99483 | 32 | $280 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 62 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 115 | 46 |
| Atorvastatin Calcium | 101 | 41 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 96 | 32 |
| Meloxicam | 95 | 44 |
| Gabapentin | 68 | 26 |
| Metoprolol Succinate | 64 | 27 |
| Metformin Hcl |
Practice location
Mailing address
Additional practice locations (1)
- 864 Sheridan RdEvanston, IL 60202-1473Phone: (219) 237-5170Fax: (219) 321-1931
Registry dates
- Enumerated
- 2007-01-19
- Last updated
- 2023-08-03
- Certified
- 2023-08-03
Frequently asked questions
- What is Wayne Williamson's NPI number?
- Wayne Williamson's National Provider Identifier (NPI) is 1699828061, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wayne Williamson's specialty?
- Wayne Williamson is listed in the NPPES registry with a primary specialty of Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Wayne Williamson located?
- Wayne Williamson's practice location on file with NPPES is 1276 N Clybourn Ave, Chicago, IL 60610-2089.
- What is Wayne Williamson's phone number?
- The practice phone number listed in the NPPES registry for Wayne Williamson is (312) 337-1073.
- Does Wayne Williamson accept Medicare?
- Wayne Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wayne Williamson's NPI active?
- Yes — Wayne Williamson's NPI (1699828061) is active in the NPPES registry as of the last update on 2023-08-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.