Janssen Williams, MD
NPI 1568548790 · Internal Medicine Physician · Mcdonough, GA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Janssen Williams, MD is a Internal Medicine Physician provider in Mcdonough, GA (NPI 1568548790).
Provider details
- NPI number
- 1568548790
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 19536 (NE)
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 tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,093 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 285 | $112 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 258 | $123 |
| 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 | 146 | $16 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 64 | $108 |
| Hemoglobin A1c Level83036 | 61 | $9 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 57 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 116 | 54 |
| Amlodipine Besylate | 91 | 49 |
| Metformin Hcl | 83 | 41 |
| Rosuvastatin Calcium | 70 | 31 |
| Levothyroxine Sodium | 70 | 29 |
| Lisinopril | 65 | 31 |
| Quetiapine Fumarate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$648 across 23 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-31
- Last updated
- 2025-03-26
- Certified
- 2025-03-26
Frequently asked questions
- What is Janssen Williams's NPI number?
- Janssen Williams's National Provider Identifier (NPI) is 1568548790, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janssen Williams's specialty?
- Janssen Williams is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Janssen Williams located?
- Janssen Williams's practice location on file with NPPES is 4303 Jodeco Rd, Mcdonough, GA 30253-8297.
- What is Janssen Williams's phone number?
- The practice phone number listed in the NPPES registry for Janssen Williams is (618) 546-5464.
- Does Janssen Williams accept Medicare?
- Janssen Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Janssen Williams's NPI active?
- Yes — Janssen Williams's NPI (1568548790) is active in the NPPES registry as of the last update on 2025-03-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.