Dr. Michael Anthony Williams, MD
- Medicare services, 2022
- 81
- Part D claims, 2017
- 16
- MIPS score, 2024
- 86
- Hospital affiliations
- 1
- Industry payments
- $18
- Practice address
- 2350 Meadows Blvd, Castle Rock, CO 80109
- Practice phone
- Call (303) 290-6500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
AdventHealth Castle Rock
Castle Rock, Colorado
Find Dr. Williams' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Michael Anthony Williams is an internist in Castle Rock, Colorado
Dr. Williams practices at AdventHealth Castle Rock in Castle Rock, Colorado.
Dr. Williams' NPI, 1598738031, was assigned on February 7, 2006. Dr. Williams holds Colorado license 37014.
- NPI
- 1598738031NPI Registry (opens in a new tab)
- NPI enumeration date
- February 7, 2006
- NPI status
- Active
- Practice phone
- (303) 290-6500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Michael Anthony Williams practices at AdventHealth Castle Rock in Castle Rock, Colorado
Dr. Williams' primary practice is AdventHealth Castle Rock, at 2350 Meadows Blvd, Castle Rock, CO 80109 in Douglas County. The practice phone is (303) 290-6500.
- AdventHealth Castle Rock2350 Meadows Blvd, Castle Rock, CO 80109 · Douglas CountyPhone(303) 290-6500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Michael Anthony Williams is affiliated with 2 sites of care and 1 medical group
Dr. Williams' primary practice is AdventHealth Castle Rock in Castle Rock, Colorado. Dr. Williams is also affiliated with AdventHealth Porter. The medical group on file is AdventHealth Transplant Institute North Billings.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Michael Anthony Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| AdventHealth Castle Rock | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Michael Anthony Williams is one of 1,668 internists in Colorado
Internal medicine is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Williams is licensed in Colorado.
Specialties and state licenses
- Internal medicine, ColoradoPrimary
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. Michael Anthony Williams billed Medicare for 81 services in 2022
CMS data shows 81 Medicare services from Dr. Williams across 3 procedure codes in 2022, all of them office visits. Medicare paid $7,238 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Williams' Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 4352022: 8181%
Dr. Williams compared with the Colorado median for internists, 2022
- Dr. Williams
- Colorado median
- Medicare services
- 81vs 37779% below
- Part D claims
- 16vs 31895% below
Medians across 1,630 internists in Colorado with Dmand AI profiles that report each measure.
Dr. Williams' most billed Medicare procedure codes, 2022
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 Colorado.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Anthony Williams wrote 16 Medicare Part D claims in 2017
In 2017, Dr. Williams wrote 16 Medicare Part D claims. They cover 1 drug, with $58 in total drug cost.
Dr. Williams' most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Michael Anthony Williams scored 86 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Dr. Williams for performance year 2024, reported as part of a group.
Dr. Williams' MIPS scores, performance year 2024
- 86of 100Final score
- 78.6of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Michael Anthony Williams received $18 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Williams from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $18.
Companies that paid Dr. Williams the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Michael Anthony 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy 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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Michael Anthony 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. Michael Anthony Williams' NPI number?
Dr. Michael Anthony Williams' NPI number is 1598738031. It was assigned on February 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Anthony Williams?
Dr. Michael Anthony Williams is an internist in Castle Rock, Colorado. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael Anthony Williams practice?
Dr. Williams practices at 2350 Meadows Blvd, Castle Rock, CO 80109. Dr. Williams' primary practice is AdventHealth Castle Rock in Castle Rock, Colorado.
What is Dr. Michael Anthony Williams' office phone number?
The practice phone on file for Dr. Williams is (303) 290-6500.
What is Dr. Michael Anthony Williams' medical license number?
Dr. Williams holds Colorado license 37014.
Which hospitals is Dr. Michael Anthony Williams affiliated with?
Dr. Williams is affiliated with AdventHealth Porter.
What medical group is Dr. Michael Anthony Williams part of?
Dr. Williams is linked to AdventHealth Transplant Institute North Billings.
Does Dr. Michael Anthony Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 81 services in 2022.
What is Dr. Michael Anthony Williams' MIPS score?
Dr. Williams' MIPS final score for performance year 2024 is 86 out of 100, reported as part of a group.
What services does Dr. Michael Anthony Williams bill to Medicare?
In 2022, Dr. Williams' most billed Medicare services were office visit, established patient (99215), office visit, new patient (99205) and office visit, established patient (99214).
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What drugs does Dr. Michael Anthony Williams prescribe most?
In 2017 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. Michael Anthony Williams received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Dr. Williams from 1 company from 2018 to 2018. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Michael Anthony Williams been practicing?
Dr. Williams' NPI was assigned in 2006.
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