Dr. Allen J. Williams, MD
- Medicare services, 2024
- 425
- Medicare patients, 2024
- 311
- Part D claims, 2024
- 25
- MIPS score, 2024
- 99
- Hospital affiliations
- 3
- Practice address
- 718 N Macomb St, Monroe, MI 48162
- Practice phone
- Call (734) 240-8400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Allen J. Williams is an emergency medicine physician in Monroe, Michigan
Dr. Williams practices at ProMedica Monroe Regional Hospital in Monroe, Michigan, part of ProMedica Health System.
Dr. Williams' NPI, 1861427270, was assigned on July 12, 2006. Dr. Williams graduated from Wayne State University School of Medicine in 1986. Dr. Williams holds Ohio license 35.092911.
- NPI
- 1861427270NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597678466
- NPI enumeration date
- July 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (734) 240-8400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Allen J. Williams practices at ProMedica Monroe Regional Hospital in Monroe, Michigan
Dr. Williams' primary practice is ProMedica Monroe Regional Hospital, at 718 N Macomb St, Monroe, MI 48162 in Monroe County. The practice phone is (734) 240-8400.
- ProMedica Monroe Regional Hospital718 N Macomb St, Monroe, MI 48162 · Monroe CountyPhone(734) 240-8400
Source: Dmand AI Affiliation Data
Dr. Allen J. Williams is affiliated with 3 sites of care and 3 medical groups
Dr. Williams' primary practice is ProMedica Monroe Regional Hospital in Monroe, Michigan, part of ProMedica Health System. Dr. Williams is also affiliated with ProMedica Toledo Hospital. The medical group on file is Emergency Physicians of Northwest Ohio. Dmand AI also links Dr. Williams to 1 more hospital and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Allen J. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| ProMedica Monroe Regional Hospital | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Allen J. Williams is one of 2,045 emergency medicine physicians in Michigan
Emergency medicine is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Williams' licenses on file in 2 states: Ohio and Michigan.
Specialties and state licenses
- Emergency medicine, OhioPrimary
- Emergency medical services (emergency medicine), Michigan
Emergency medicine physicians near Dr. Williams
Counts of emergency medicine physicians 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. Allen J. Williams billed Medicare for 425 services in 2024
CMS data shows 425 Medicare services from Dr. Williams across 4 procedure codes in 2024, for 311 Medicare patients. Medicare paid $39,636 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Williams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3962024: 31321%
- Tests and treatments
- 2023: 932024: 11220%
Dr. Williams compared with the Michigan median for emergency medicine physicians, 2024
- Dr. Williams
- Michigan median
- Medicare services
- 425vs 23482% above
- Medicare patients
- 311vs 21445% above
- Part D claims
- 14vs 4670% below
Medians across 1,937 emergency medicine physicians in Michigan 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Allen J. Williams treated 311 Medicare patients in 2024, average age 73
CMS counts 311 Medicare patients who saw Dr. Williams in 2024. The largest group is 65 to 74, with 120 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 17% are also on Medicaid. Their average risk score is 2.21, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 65, with 55% women.
Dr. Williams' Medicare patients by age, 2024
Dr. Williams' Medicare patients by sex, 2024
- Women16152%
- Men15048%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Ischemic heart disease49%
- Diabetes44%
- Anxiety43%
- Mood disorders43%
- Heart failure42%
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 65
Patient panel by sex, all payers
- Women55%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Allen J. Williams wrote 25 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 25 Medicare Part D claims for 22 patients. 96% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $45 in total drug cost. In 2018, CMS named 15 claims across 1 drug.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic24 claims96%
- Brand-name and other1 claims4%
Dr. Williams' most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2022
- 2018
- 2022
- Claims for drugs CMS names
- 2018: 152022: 147%
Drugs named by CMS: 1 in 2022, 1 in 2018.
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. Allen J. Williams scored 99 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. Williams for performance year 2024, reported as part of a group. 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
- 99of 100Final score
- 96.5of 100Quality
- 40of 100Improvement Activities
- 90of 100Cost
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. Allen J. Williams graduated from Wayne State University School of Medicine
Dr. Williams graduated from Wayne State University School of Medicine in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Allen J. 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 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 |
| 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) |
| 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. Allen J. 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. Allen J. Williams' NPI number?
Dr. Allen J. Williams' NPI number is 1861427270. It was assigned on July 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Allen J. Williams?
Dr. Allen J. Williams is an emergency medicine physician in Monroe, Michigan. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Allen J. Williams practice?
Dr. Williams practices at 718 N Macomb St, Monroe, MI 48162. Dr. Williams' primary practice is ProMedica Monroe Regional Hospital in Monroe, Michigan, part of ProMedica Health System. Dmand AI also links Dr. Williams to 1 hospital and 2 medical groups.
What is Dr. Allen J. Williams' office phone number?
The practice phone on file for Dr. Williams is (734) 240-8400.
What is Dr. Allen J. Williams' medical license number?
Dr. Williams holds Ohio license 35.092911, one of the licenses on file in 2 states.
Which states has Dr. Allen J. Williams been licensed in?
Dmand AI has state licenses on file for Dr. Williams in Ohio and Michigan.
Which hospitals is Dr. Allen J. Williams affiliated with?
Dr. Williams practices at ProMedica Monroe Regional Hospital in Monroe, Michigan. Dr. Williams is also affiliated with ProMedica Toledo Hospital. Dmand AI links Dr. Williams to 1 more hospital.
What medical group is Dr. Allen J. Williams part of?
Dr. Williams is linked to Emergency Physicians of Northwest Ohio. Dmand AI links Dr. Williams to 2 more medical groups.
Does Dr. Allen J. Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 425 services in 2024, and Dr. Williams accepts Medicare assignment.
What is Dr. Allen J. Williams' MIPS score?
Dr. Williams' MIPS final score for performance year 2024 is 99 out of 100, reported as part of a group.
Show 5 more questionsShow fewer questions
How many Medicare patients does Dr. Allen J. Williams see?
CMS counts 311 Medicare patients who saw Dr. Williams in 2024, with an average age of 73.
What services does Dr. Allen J. Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Where did Dr. Allen J. Williams go to medical school?
Dr. Williams graduated from Wayne State University School of Medicine in 1986.
What drugs does Dr. Allen J. Williams prescribe most?
In 2022 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Prednisone.
How long has Dr. Allen J. Williams been practicing?
Dr. Williams graduated from medical school in 1986, 40 years ago.
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