Dr. Michael Anthony May, MD
- Medicare services, 2024
- 760
- Medicare patients, 2024
- 597
- Part D claims, 2024
- 557
- Hospital affiliations
- 3
- Industry payments
- $51
- Practice address
- 301 Becker Ave SW, Willmar, MN 56201
- Practice phone
- Call (320) 235-4543
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Michael Anthony May is an internist in Willmar, Minnesota
Dr. May practices at CentraCare - Rice Memorial Hospital in Willmar, Minnesota, part of CentraCare Health System.
Dr. May's NPI, 1619142742, was assigned on April 29, 2008. Dr. May graduated from University of Minnesota Medical School in 2005. Dr. May holds Minnesota license 48697.
- NPI
- 1619142742NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2062586977
- NPI enumeration date
- April 29, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (320) 235-4543
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Anthony May practices at CentraCare - Rice Memorial Hospital in Willmar, Minnesota
Dr. May's primary practice is CentraCare - Rice Memorial Hospital, at 301 Becker Ave SW, Willmar, MN 56201 in Kandiyohi County. The practice phone is (320) 235-4543.
- CentraCare - Rice Memorial Hospital301 Becker Ave SW, Willmar, MN 56201 · Kandiyohi CountyPhone(320) 235-4543
Source: Dmand AI Affiliation Data
Dr. Michael Anthony May is affiliated with 5 sites of care and 1 medical group
Dr. May's primary practice is CentraCare - Rice Memorial Hospital in Willmar, Minnesota, part of CentraCare Health System. Dr. May is also affiliated with CentraCare - St. Cloud Hospital. The medical group on file is CentraCare Clinic. Dmand AI also links Dr. May to 1 more hospital, 1 group practice or clinic and 1 therapy and rehab clinic, 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. Michael Anthony May's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. May practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CentraCare - Rice Memorial Hospital | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across CentraCare Health System and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Michael Anthony May is one of 2,322 internists in Minnesota
Internal medicine is Dr. May's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. May is licensed in Minnesota.
Specialties and state licenses
- Internal medicine, MinnesotaPrimary
Internists near Dr. May
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 May billed Medicare for 760 services in 2024
CMS data shows 760 Medicare services from Dr. May across 8 procedure codes in 2024, for 597 Medicare patients. Medicare paid $21,537 for them.
Dr. May's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 5852024: 5901%
- Office and hospital visits
- 2023: 3932024: 17057%
Where Dr. May's Medicare services took place, 2024
- In an office31742%
- In a facility44358%
Dr. May compared with the Minnesota median for internists, 2024
- Dr. May
- Minnesota median
- Medicare services
- 760vs 3362.3 times
- Medicare patients
- 597vs 1484.0 times
- Part D claims
- 446vs 1443.1 times
Medians across 2,238 internists in Minnesota with Dmand AI profiles that report each measure.
Dr. May'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. May and other internists in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Anthony May treated 597 Medicare patients in 2024, average age 74
CMS counts 597 Medicare patients who saw Dr. May in 2024. The largest group is 65 to 74, with 224 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.60, 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. May's median patient age at 65, with 55% women.
Dr. May's Medicare patients by age, 2024
Dr. May's Medicare patients by sex, 2024
- Women34157%
- Men25643%
Chronic conditions among Dr. May's Medicare patients, 2024
- High blood pressure75%
- High cholesterol72%
- Arthritis44%
- Diabetes34%
- Chronic kidney disease33%
- Mood disorders32%
- Depression31%
- Ischemic heart disease31%
Share of Medicare patients with each condition. A patient can have several.
Dr. May's 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%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael Anthony May wrote 557 Medicare Part D claims in 2024
In 2024, Dr. May wrote 557 Medicare Part D claims for 31 patients. 93% of them were for generic drugs. CMS names the drug for 446 of them, across 16 drugs with 11 or more claims each, at $5,366 in total drug cost. In 2023, CMS named 716 claims across 29 drugs.
Dr. May's Part D claims by kind of drug, 2024
- Generic516 claims93%
- Brand-name41 claims7%
Dr. May'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 7162024: 44638%
Drugs named by CMS: 16 in 2024, 29 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
How Dr. Michael Anthony May takes part in Medicare
Dr. May accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Michael Anthony May received $51 in industry payments in 2018
CMS Open Payments shows 2 general payments to Dr. May from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Intuitive Surgical, Inc. paid the most, $51.
Companies that paid Dr. May the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael Anthony May graduated from University of Minnesota Medical School
Dr. May graduated from University of Minnesota Medical School in 2005.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael Anthony May'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) |
| 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. Michael Anthony May
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 May's NPI number?
Dr. Michael Anthony May's NPI number is 1619142742. It was assigned on April 29, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Anthony May?
Dr. Michael Anthony May is an internist in Willmar, Minnesota. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Michael Anthony May practice?
Dr. May practices at 301 Becker Ave SW, Willmar, MN 56201. Dr. May's primary practice is CentraCare - Rice Memorial Hospital in Willmar, Minnesota, part of CentraCare Health System. Dmand AI also links Dr. May to 1 hospital, 1 group practice or clinic and 1 therapy and rehab clinic.
What is Dr. Michael Anthony May's office phone number?
The practice phone on file for Dr. May is (320) 235-4543.
What is Dr. Michael Anthony May's medical license number?
Dr. May holds Minnesota license 48697.
Which hospitals is Dr. Michael Anthony May affiliated with?
Dr. May practices at CentraCare - Rice Memorial Hospital in Willmar, Minnesota. Dr. May is also affiliated with CentraCare - St. Cloud Hospital. Dmand AI links Dr. May to 1 more hospital.
What medical group is Dr. Michael Anthony May part of?
Dr. May is linked to CentraCare Clinic.
Does Dr. Michael Anthony May accept Medicare?
Yes. CMS data shows Dr. May billed Medicare for 760 services in 2024, and Dr. May accepts Medicare assignment.
How many Medicare patients does Dr. Michael Anthony May see?
CMS counts 597 Medicare patients who saw Dr. May in 2024, with an average age of 74.
What services does Dr. Michael Anthony May bill to Medicare?
In 2024, Dr. May's most billed Medicare services were heart test or procedure (93010), hospital inpatient care (99223) and lung function service (94729).
Show 4 more questionsShow fewer questions
Where did Dr. Michael Anthony May go to medical school?
Dr. May graduated from University of Minnesota Medical School in 2005.
What drugs does Dr. Michael Anthony May prescribe most?
In 2024 Medicare Part D data, Dr. May's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Lisinopril.
Has Dr. Michael Anthony May received payments from drug or device companies?
CMS Open Payments shows $51 in general payments to Dr. May from 1 company from 2018 to 2018. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Michael Anthony May been practicing?
Dr. May graduated from medical school in 2005, 21 years ago.
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