Dr. Ronald David Kerwin, MD
- Medicare services, 2024
- 3,112
- Medicare patients, 2024
- 670
- Part D claims, 2024
- 1,662
- MIPS score, 2024
- 92
- Hospital affiliations
- 1
- Practice address
- 6330 Orchard Lake Rd, West Bloomfield, MI 48322
- Practice phone
- Call (586) 286-0112
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Midwest Center for Dermatology & Pathology
West Bloomfield, Michigan
Find Dr. Kerwin's 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. Ronald David Kerwin is a dermatologist in West Bloomfield, Michigan
Dr. Kerwin practices at Midwest Center for Dermatology & Pathology in West Bloomfield, Michigan.
Dr. Kerwin's NPI, 1265497622, was assigned on April 19, 2006. Dr. Kerwin graduated from Wayne State University School of Medicine in 1976. Dr. Kerwin holds Michigan license 044088.
- NPI
- 1265497622NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648270215
- NPI enumeration date
- April 19, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (586) 286-0112
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 76
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ronald David Kerwin practices at Midwest Center for Dermatology & Pathology in West Bloomfield, Michigan
Dr. Kerwin's primary practice is Midwest Center for Dermatology & Pathology, at 6330 Orchard Lake Rd, West Bloomfield, MI 48322 in Oakland County. The practice phone is (586) 286-0112.
- Midwest Center for Dermatology & Pathology6330 Orchard Lake Rd, West Bloomfield, MI 48322 · Oakland CountyPhone(586) 286-0112
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ronald David Kerwin is affiliated with 4 sites of care and 2 medical groups
Dr. Kerwin's primary practice is Midwest Center for Dermatology & Pathology in West Bloomfield, Michigan. Dr. Kerwin is also affiliated with Corewell Health William Beaumont University Hospital. The medical group on file is Midwest Dermatology. Dmand AI also links Dr. Kerwin to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Ronald David Kerwin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kerwin practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Midwest Center for Dermatology & Pathology | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ronald David Kerwin is one of 430 dermatologists in Michigan
Dermatology is Dr. Kerwin's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Kerwin is licensed in Michigan.
Specialties and state licenses
- Dermatology, MichiganPrimary
Dermatologists near Dr. Kerwin
Counts of dermatologists 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. Ronald David Kerwin billed Medicare for 3,112 services in 2024
CMS data shows 3,112 Medicare services from Dr. Kerwin across 18 procedure codes in 2024, for 670 Medicare patients. Medicare paid $179,448 for them. Every service was in an office.
Dr. Kerwin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1,8652024: 1,7148%
- Office and hospital visits
- 2023: 1,0602024: 1,1307%
- Drugs given in the office
- 2023: 1892024: 2058%
- Tests and treatments
- 2023: 532024: 6319%
Dr. Kerwin compared with the Michigan median for dermatologists, 2024
- Dr. Kerwin
- Michigan median
- Medicare services
- 3,112vs 1,4332.2 times
- Medicare patients
- 670vs 38674% above
- Part D claims
- 1,558vs 5283.0 times
Medians across 396 dermatologists in Michigan with Dmand AI profiles that report each measure.
Dr. Kerwin's 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. Kerwin and other dermatologists in Michigan.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ronald David Kerwin treated 670 Medicare patients in 2024, average age 75
CMS counts 670 Medicare patients who saw Dr. Kerwin in 2024. The largest group is 65 to 74, with 298 patients. 75% of them have high cholesterol, and 71% have high blood pressure. 7% are also on Medicaid. Their average risk score is 1.06, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Kerwin's median patient age at 63, with 48% women.
Dr. Kerwin's Medicare patients by age, 2024
Dr. Kerwin's Medicare patients by sex, 2024
- Women31447%
- Men35653%
Chronic conditions among Dr. Kerwin's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis44%
- Ischemic heart disease35%
- Diabetes29%
- Anxiety21%
- Chronic kidney disease21%
- Cancer18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kerwin's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women48%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ronald David Kerwin wrote 1,662 Medicare Part D claims in 2024
In 2024, Dr. Kerwin wrote 1,662 Medicare Part D claims for 693 patients. 97% of them were for generic drugs. CMS names the drug for 1,558 of them, across 21 drugs with 11 or more claims each, at $28,727 in total drug cost. In 2023, CMS named 1,201 claims across 19 drugs.
Dr. Kerwin's Part D claims by kind of drug, 2024
- Generic1,604 claims97%
- Brand-name58 claims3%
Dr. Kerwin's 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. Kerwin's Part D claims, 2024
- Antibiotics16%259 of 1,662 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: 1,2012024: 1,55830%
Drugs named by CMS: 21 in 2024, 19 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. Ronald David Kerwin scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 out of 100 for Dr. Kerwin for performance year 2024, reported as part of a group. Dr. Kerwin accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 429 procedures of skin biopsy by Dr. Kerwin, more than 94% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Kerwin's MIPS scores, performance year 2024
- 92of 100Final score
- 91.1of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Kerwin ranks in Medicare procedure volume
- Removal of skin lesions
- 92nd percentile886 procedures
- Skin biopsy
- 94th percentile429 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Ronald David Kerwin received $14,901 in industry payments from 2016 to 2025
CMS Open Payments shows 778 general payments to Dr. Kerwin from 50 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 72% of the total. Allergan Inc. paid the most, $2,723.
General payments to Dr. Kerwin by program year, 2016 to 2025
General payments to Dr. Kerwin by kind, 2016 to 2025
- Food and beverage$10,71472%
- Consulting fees$1,50010%
- Speaker and faculty fees$1,3969%
- Education$9406%
- Honoraria$3502%
Companies that paid Dr. Kerwin 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. Ronald David Kerwin graduated from Wayne State University School of Medicine
Dr. Kerwin graduated from Wayne State University School of Medicine in 1976.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ronald David Kerwin'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 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| 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. Ronald David Kerwin
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. Ronald David Kerwin's NPI number?
Dr. Ronald David Kerwin's NPI number is 1265497622. It was assigned on April 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ronald David Kerwin?
Dr. Ronald David Kerwin is a dermatologist in West Bloomfield, Michigan. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Ronald David Kerwin practice?
Dr. Kerwin practices at 6330 Orchard Lake Rd, West Bloomfield, MI 48322. Dr. Kerwin's primary practice is Midwest Center for Dermatology & Pathology in West Bloomfield, Michigan. Dmand AI also links Dr. Kerwin to 2 group practices and clinics and 1 medical group.
What is Dr. Ronald David Kerwin's office phone number?
The practice phone on file for Dr. Kerwin is (586) 286-0112.
What is Dr. Ronald David Kerwin's medical license number?
Dr. Kerwin holds Michigan license 044088.
Which hospitals is Dr. Ronald David Kerwin affiliated with?
Dr. Kerwin is affiliated with Corewell Health William Beaumont University Hospital.
What medical group is Dr. Ronald David Kerwin part of?
Dr. Kerwin is linked to Midwest Dermatology. Dmand AI links Dr. Kerwin to 1 more medical group.
Does Dr. Ronald David Kerwin accept Medicare?
Yes. CMS data shows Dr. Kerwin billed Medicare for 3,112 services in 2024, and Dr. Kerwin accepts Medicare assignment.
What is Dr. Ronald David Kerwin's MIPS score?
Dr. Kerwin's MIPS final score for performance year 2024 is 92 out of 100, reported as part of a group.
How many Medicare patients does Dr. Ronald David Kerwin see?
CMS counts 670 Medicare patients who saw Dr. Kerwin in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. Ronald David Kerwin bill to Medicare?
In 2024, Dr. Kerwin's most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. Ronald David Kerwin go to medical school?
Dr. Kerwin graduated from Wayne State University School of Medicine in 1976.
What drugs does Dr. Ronald David Kerwin prescribe most?
In 2024 Medicare Part D data, Dr. Kerwin's most prescribed drugs by claims were Triamcinolone Acetonide, Mupirocin and Doxycycline Monohydrate.
Has Dr. Ronald David Kerwin received payments from drug or device companies?
CMS Open Payments shows $14,901 in general payments to Dr. Kerwin from 50 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Ronald David Kerwin been practicing?
Dr. Kerwin graduated from medical school in 1976, 50 years ago.
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