Mark Williams M.D., LLC
NPI 1821006032 · Internal Medicine Physician · Louisville, KY
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Williams M.D., LLC is a Internal Medicine Physician organization in Louisville, KY (NPI 1821006032).
Provider details
- NPI number
- 1821006032
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mark Williams, President(502) 244-9355
- License
- 34119 (KY)
Specialties & taxonomies
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-03
- Last updated
- 2024-06-17
- Certified
- 2024-06-17
Frequently asked questions
- What is Mark Williams M.D., LLC's NPI number?
- Mark Williams M.D., LLC's National Provider Identifier (NPI) is 1821006032, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mark Williams M.D., LLC?
- Mark Williams M.D., LLC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Williams M.D., LLC located?
- Mark Williams M.D., LLC's practice location on file with NPPES is 12010 Shelbyville Rd, Louisville, KY 40243-1054.
- What is Mark Williams M.D., LLC's phone number?
- The practice phone number listed in the NPPES registry for Mark Williams M.D., LLC is (502) 244-9355.
- Does Mark Williams M.D., LLC accept Medicare?
- Mark Williams M.D., LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Mark Williams M.D., LLC?
- The authorized official listed on Mark Williams M.D., LLC's NPPES record is Mark Williams, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mark Williams M.D., LLC's NPI active?
- Yes — Mark Williams M.D., LLC's NPI (1821006032) is active in the NPPES registry as of the last update on 2024-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.