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Dr. Mark A. Williams, MD
NPI1710179585PAC ID1850369976
- Medicare services, 2024
- 692
- Medicare patients, 2024
- 237
- Part D claims, 2024
- 7,393
- Publications
- 5
- MIPS score, 2024
- 94
- Practice address
- 12010 Shelbyville Rd, Louisville, KY 40243
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Baptist Health Medical Group Family and Internal Medicine - HOPD
Acute Care Hospital outpatient department · Louisville, Kentucky
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Dr. Mark A. Williams is an internist in Louisville, Kentucky
Dr. Williams practices at Baptist Health Medical Group Family and Internal Medicine - HOPD in Louisville, Kentucky.
Dr. Williams' NPI, 1710179585, was assigned on August 15, 2007. Dr. Williams graduated from University of Louisville School of Medicine in 1997. Dr. Williams holds Kentucky license 34119.
NPI and contact details
- NPI
- 1710179585NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1850369976
- NPI enumeration date
- August 15, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 55
- Medical school graduation
- 1997
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark A. Williams practices at Baptist Health Medical Group Family and Internal Medicine - HOPD in Louisville, Kentucky
Dr. Williams' primary practice is Baptist Health Medical Group Family and Internal Medicine - HOPD, at 12010 Shelbyville Rd, Louisville, KY 40243.
- Baptist Health Medical Group Family and Internal Medicine - HOPD12010 Shelbyville Rd, Louisville, KY 40243
Source: Dmand AI Affiliation Data
Dr. Mark A. Williams is affiliated with 7 sites of care and 2 medical groups
Dr. Williams' primary practice is Baptist Health Medical Group Family and Internal Medicine - HOPD in Louisville, Kentucky. Dr. Williams is also affiliated with Norton Hospital. The medical group on file is Baptist Health Medical Group. Dmand AI also links Dr. Williams to 2 more hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group, each named with a free account. Dr. Williams' employer is on file too: a hospital.
Baptist Health Medical Group Family and Internal Medicine - HOPDPrimary
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark A. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Baptist Health Medical Group Family and Internal Medicine - HOPD | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark A. Williams is one of 1,380 internists in Kentucky
Internal medicine is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Williams is licensed in Kentucky.
Specialties and state licenses
- Internal medicine, KentuckyPrimary
Internists near Dr. Williams
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark A. Williams billed Medicare for 692 services in 2024
CMS data shows 692 Medicare services from Dr. Williams across 8 procedure codes in 2024, for 237 Medicare patients. Medicare paid $53,168 for them. Every service was in an office.
Medicare services, 2024692
Medicare patients237
Paid by Medicare$53,168
Procedure codes8
Dr. Williams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5412024: 46414%
- Other services
- 2023: 1492024: 21544%
- Tests and treatments
- 2023: 682024: 1381%
Dr. Williams compared with the Kentucky median for internists, 2024
- Dr. Williams
- Kentucky median
- Medicare services
- 692vs 61313% above
- Medicare patients
- 237vs 2236% above
- Part D claims
- 6,749vs 36818.3 times
Medians across 1,380 internists in Kentucky with Dmand AI profiles that report each measure.
Dr. Williams' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Williams and other internists in Kentucky.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark A. Williams treated 237 Medicare patients in 2024, average age 74
CMS counts 237 Medicare patients who saw Dr. Williams in 2024. The largest group is 65 to 74, with 135 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.79, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 64, with 37% women.
Medicare patients, 2024237
Average age74
Average risk score0.79
Dr. Williams' Medicare patients by age, 2024
Dr. Williams' Medicare patients by sex, 2024
- Women9841%
- Men13959%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis45%
- Diabetes27%
- Anxiety24%
- Chronic kidney disease15%
- Ischemic heart disease15%
- Cancer12%
Share of Medicare patients with each condition. A patient can have several.
Dr. Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women37%
- Men63%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark A. Williams wrote 7,393 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 7,393 Medicare Part D claims for 365 patients. 88% of them were for generic drugs. CMS names the drug for 6,749 of them, across 110 drugs with 11 or more claims each, at $480,146 in total drug cost. In 2023, CMS named 6,562 claims across 117 drugs.
Part D claims, 20247,393
Drugs named by CMS110
Total drug cost$480,146
Part D patients365
Dr. Williams' Part D claims by kind of drug, 2024
- Generic6,483 claims88%
- Brand-name895 claims12%
- Other15 claims0%
Dr. Williams' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Williams' Part D claims, 2024
- Opioids0%35 of 7,393 claims
- Antibiotics1%102 of 7,393 claims
- Antipsychotics, patients 65 and over0%21 of 7,393 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 6,5622024: 6,7493%
Drugs named by CMS: 110 in 2024, 117 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Mark A. Williams scored 94 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Williams for performance year 2024, reported through an alternative payment model (APM). Dr. Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Williams' MIPS scores, performance year 2024
- 94of 100Final score
- 87.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Mark A. Williams has 5 publications on record
Dmand AI links 5 papers to Dr. Williams, published from 2014 to 2020. 2014 was the busiest year, with 2. The most frequent topics are Cucurbita and Insecta. Dr. Williams has published most often in Front Plant Sci. Dr. Williams' most frequent co-author is Mark Anthony Williams, MD, PhD.
Papers5
Years published2014 to 2020
Dr. Williams' papers by year, 2014 to 2020
Topics Dr. Williams writes about most
- Cucurbita
- Insecta
Dr. Williams' most frequent co-authors
Recent publications by Dr. Williams
Predator-prey trophic relationships in response to organic management practices (opens in a new tab)
Mol Ecol
CucurbitaDNA PrimersFood Chain
J Econ Entomol
AgricultureCucurbitaInsecta
See who Dr. Williams researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Williams works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark A. Williams received $44,915 in industry payments from 2016 to 2025
CMS Open Payments shows 1,556 general payments to Dr. Williams from 78 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $5,586.
General payments to Dr. Williams by program year, 2016 to 2025
General payments to Dr. Williams by kind, 2016 to 2025
$44.9Kin total
- Food and beverage$44,43099%
- Education$4851%
Companies that paid Dr. Williams the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark A. Williams graduated from University of Louisville School of Medicine
Dr. Williams graduated from University of Louisville School of Medicine in 1997.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark A. Williams's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mark A. Williams
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mark A. Williams' NPI number?
Dr. Mark A. Williams' NPI number is 1710179585. It was assigned on August 15, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark A. Williams?
Dr. Mark A. Williams is an internist in Louisville, Kentucky. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Mark A. Williams practice?
Dr. Williams practices at 12010 Shelbyville Rd, Louisville, KY 40243. Dr. Williams' primary practice is Baptist Health Medical Group Family and Internal Medicine - HOPD in Louisville, Kentucky. Dmand AI also links Dr. Williams to 2 hospitals, 2 group practices and clinics, 1 home health agency and 1 medical group.
What is Dr. Mark A. Williams' medical license number?
Dr. Williams holds Kentucky license 34119.
Which hospitals is Dr. Mark A. Williams affiliated with?
Dr. Williams is affiliated with Norton Hospital. Dmand AI links Dr. Williams to 2 more hospitals.
What medical group is Dr. Mark A. Williams part of?
Dr. Williams is linked to Baptist Health Medical Group. Dmand AI links Dr. Williams to 1 more medical group.
Does Dr. Mark A. Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 692 services in 2024, and Dr. Williams accepts Medicare assignment.
What is Dr. Mark A. Williams' MIPS score?
Dr. Williams' MIPS final score for performance year 2024 is 94 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Mark A. Williams see?
CMS counts 237 Medicare patients who saw Dr. Williams in 2024, with an average age of 74.
What services does Dr. Mark A. Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and medicare service (G0439).
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Where did Dr. Mark A. Williams go to medical school?
Dr. Williams graduated from University of Louisville School of Medicine in 1997.
What drugs does Dr. Mark A. Williams prescribe most?
In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
Has Dr. Mark A. Williams received payments from drug or device companies?
CMS Open Payments shows $44,915 in general payments to Dr. Williams from 78 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Mark A. Williams been practicing?
Dr. Williams graduated from medical school in 1997, 29 years ago.
Does Dr. Mark A. Williams do research?
Dmand AI links 5 publications to Dr. Williams, published from 2014 to 2020.
Who does Dr. Mark A. Williams publish with?
Dr. Williams' most frequent co-authors are Mark Anthony Williams, MD, PhD (5 shared papers).
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