Dr. Eric James May, MD
- Medicare services, 2024
- 2,896
- Medicare patients, 2024
- 2,168
- Hospital affiliations
- 10
- Industry payments
- $23
- Medical groups
- 15
- Practice address
- 2800 10th Ave N, Billings, MT 59101
- Practice phone
- Call (406) 657-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Eric James May is a diagnostic radiologist in Billings, Montana
Dr. May practices at Billings Clinic Hospital in Billings, Montana, part of Billings Clinic.
Dr. May's NPI, 1447561360, was assigned on June 25, 2010. Dr. May graduated from Medical College of Wisconsin in 2010. Dr. May holds Montana license 48749.
- NPI
- 1447561360NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6002088697
- NPI enumeration date
- June 25, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (406) 657-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Eric James May practices at Billings Clinic Hospital in Billings, Montana
Dr. May's primary practice is Billings Clinic Hospital, at 2800 10th Ave N, Billings, MT 59101 in Yellowstone County. The practice phone is (406) 657-4000.
- Billings Clinic Hospital2800 10th Ave N, Billings, MT 59101 · Yellowstone CountyPhone(406) 657-4000
Source: Dmand AI Affiliation Data
Dr. Eric James May is affiliated with 10 sites of care and 15 medical groups
Dr. May's primary practice is Billings Clinic Hospital in Billings, Montana, part of Billings Clinic. Dr. May is also affiliated with St. Vincent Regional Hospital. The medical group on file is Billings Clinic. Dmand AI also links Dr. May to 8 more hospitals and 14 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. Eric James May's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. May practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Billings Clinic Hospital | Available with a free account |
| +9 more sites and 14 medical groups | 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 Billings Clinic and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Eric James May is one of 115 diagnostic radiologists in Montana
Diagnostic radiology is Dr. May's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dmand AI has Dr. May's licenses on file in 2 states: Montana and Minnesota.
Specialties and state licenses
- Diagnostic radiology, MontanaPrimary
- Student in an organized health care education/training program, Minnesota
Diagnostic radiologists near Dr. May
Counts of diagnostic radiologists 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. Eric James May billed Medicare for 2,896 services in 2024
CMS data shows 2,896 Medicare services from Dr. May across 46 procedure codes in 2024, for 2,168 Medicare patients. Medicare paid $91,171 for them.
Dr. May's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 2,4112024: 2,4994%
- Tests and treatments
- 2023: 2102024: 2236%
- Surgery
- 2023: 1172024: 17449%
Where Dr. May's Medicare services took place, 2024
- In an office301%
- In a facility2,86699%
Dr. May compared with the Montana median for diagnostic radiologists, 2024
- Dr. May
- Montana median
- Medicare services
- 2,896vs 2,789Close to median
- Medicare patients
- 2,168vs 2,2935% below
Medians across 123 diagnostic radiologists in Montana 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.
Need commercial claims for Dr. May?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. May and other diagnostic radiologists in Montana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Eric James May treated 2,168 Medicare patients in 2024, average age 74
CMS counts 2,168 Medicare patients who saw Dr. May in 2024. The largest group is 65 to 74, with 994 patients. 71% of them have high blood pressure, and 63% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.43, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. May's median patient age at 70, with 62% women.
Dr. May's Medicare patients by age, 2024
Dr. May's Medicare patients by sex, 2024
- Women1,20556%
- Men96344%
Chronic conditions among Dr. May's Medicare patients, 2024
- High blood pressure71%
- High cholesterol63%
- Arthritis51%
- Mood disorders32%
- Depression31%
- Anxiety28%
- Diabetes28%
- Ischemic heart disease28%
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 70
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Eric James 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. Eric James May received $23 in industry payments in 2025
CMS Open Payments shows 1 general payment to Dr. May from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $23.
Companies that paid Dr. May the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Eric James May graduated from Medical College of Wisconsin
Dr. May graduated from Medical College of Wisconsin in 2010.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Eric James 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) |
| 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. Eric James 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. Eric James May's NPI number?
Dr. Eric James May's NPI number is 1447561360. It was assigned on June 25, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Eric James May?
Dr. Eric James May is a diagnostic radiologist in Billings, Montana. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Eric James May practice?
Dr. May practices at 2800 10th Ave N, Billings, MT 59101. Dr. May's primary practice is Billings Clinic Hospital in Billings, Montana, part of Billings Clinic. Dmand AI also links Dr. May to 8 hospitals and 14 medical groups.
What is Dr. Eric James May's office phone number?
The practice phone on file for Dr. May is (406) 657-4000.
What is Dr. Eric James May's medical license number?
Dr. May holds Montana license 48749, one of the licenses on file in 2 states.
Which states has Dr. Eric James May been licensed in?
Dmand AI has state licenses on file for Dr. May in Montana and Minnesota.
Which hospitals is Dr. Eric James May affiliated with?
Dr. May practices at Billings Clinic Hospital in Billings, Montana. Dr. May is also affiliated with St. Vincent Regional Hospital. Dmand AI links Dr. May to 8 more hospitals.
What medical group is Dr. Eric James May part of?
Dr. May is linked to Billings Clinic. Dmand AI links Dr. May to 14 more medical groups.
Does Dr. Eric James May accept Medicare?
Yes. CMS data shows Dr. May billed Medicare for 2,896 services in 2024, and Dr. May accepts Medicare assignment.
How many Medicare patients does Dr. Eric James May see?
CMS counts 2,168 Medicare patients who saw Dr. May in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
What services does Dr. Eric James May bill to Medicare?
In 2024, Dr. May's most billed Medicare services were diagnostic imaging (70450), diagnostic imaging (71045) and diagnostic imaging (71046).
Where did Dr. Eric James May go to medical school?
Dr. May graduated from Medical College of Wisconsin in 2010.
Has Dr. Eric James May received payments from drug or device companies?
CMS Open Payments shows $23 in general payments to Dr. May from 1 company from 2025 to 2025. The largest total came from Abbott Laboratories.
How long has Dr. Eric James May been practicing?
Dr. May graduated from medical school in 2010, 16 years ago.
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