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Dr. Steffan John May, MD
NPI1194915397PAC ID6709078348
- Medicare services, 2024
- 1,257
- Medicare patients, 2024
- 471
- Part D claims, 2024
- 7,759
- Publications
- 1
- Hospital affiliations
- 4
- Practice address
- 915 Highland Blvd, Bozeman, MT 59715
- Practice phone
- Call (406) 585-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. May'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. Steffan John May is an internist in Bozeman, Montana
Dr. May practices at Bozeman Health Deaconess Regional Medical Center in Bozeman, Montana, part of Bozeman Deaconess Health Services.
Dr. May's NPI, 1194915397, was assigned on July 25, 2007. Dr. May graduated from Ohio State University College of Medicine in 2007. Dr. May holds Montana license 12395.
NPI and contact details
- NPI
- 1194915397NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709078348
- NPI enumeration date
- July 25, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (406) 585-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Steffan John May practices at Bozeman Health Deaconess Regional Medical Center in Bozeman, Montana
Dr. May's primary practice is Bozeman Health Deaconess Regional Medical Center, at 915 Highland Blvd, Bozeman, MT 59715 in Gallatin County. The practice phone is (406) 585-5000.
- Bozeman Health Deaconess Regional Medical Center915 Highland Blvd, Bozeman, MT 59715 · Gallatin CountyPhone(406) 585-5000
Source: Dmand AI Affiliation Data
Dr. Steffan John May is affiliated with 6 sites of care and 1 medical group
Dr. May's primary practice is Bozeman Health Deaconess Regional Medical Center in Bozeman, Montana, part of Bozeman Deaconess Health Services. Dr. May is also affiliated with Livingston HealthCare. The medical group on file is Bozeman Health. Dmand AI also links Dr. May to 2 more hospitals, 1 group practice or clinic and 1 home health agency, each named with a free account. Dr. May's employer is on file too: a hospital.
Livingston HealthCareBozeman Health2 hospitalsNames with a free account1 group practice or clinicName with a free account1 home health agencyName with a free accountEmployer: hospitalName with a free account
See all 7 affiliations for Dr. MaySources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Steffan John May's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. May practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Bozeman Health Deaconess Regional Medical Center | Available with a free account |
| +5 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Steffan John May is one of 311 internists in Montana
Internal medicine is Dr. May's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. May is licensed in Montana.
Specialties and state licenses
- Internal medicine, MontanaPrimary
Internists near Dr. May
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
311internists in Montana34internists in Bozeman32internists at Bozeman Health Deaconess Regional Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Steffan John May billed Medicare for 1,257 services in 2024
CMS data shows 1,257 Medicare services from Dr. May across 5 procedure codes in 2024, for 471 Medicare patients. Medicare paid $41,641 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 20241,257
Medicare patients471
Paid by Medicare$41,641
Procedure codes5
Dr. May's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8652024: 74614%
- Other services
- 2023: 2282024: 511124%
Dr. May compared with the Montana median for internists, 2024
- Dr. May
- Montana median
- Medicare services
- 1,257vs 4762.6 times
- Medicare patients
- 471vs 25386% above
- Part D claims
- 7,198vs 14350.3 times
Medians across 340 internists 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 internists in Montana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Steffan John May treated 471 Medicare patients in 2024, average age 75
CMS counts 471 Medicare patients who saw Dr. May in 2024. The largest group is 65 to 74, with 224 patients. 65% of them have high blood pressure, and 63% have high cholesterol. 4% are also on Medicaid. Their average risk score is 1.00, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. May's median patient age at 74, with 39% women.
Medicare patients, 2024471
Average age75
Average risk score1.00
Also on Medicaid4%
Dr. May's Medicare patients by age, 2024
Dr. May's Medicare patients by sex, 2024
- Women20042%
- Men27158%
Chronic conditions among Dr. May's Medicare patients, 2024
- High blood pressure65%
- High cholesterol63%
- Arthritis43%
- Ischemic heart disease21%
- Anxiety19%
- Mood disorders17%
- Atrial fibrillation16%
- Cancer16%
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 74
Patient panel by sex, all payers
- Women39%
- Men61%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Steffan John May wrote 7,759 Medicare Part D claims in 2024
In 2024, Dr. May wrote 7,759 Medicare Part D claims for 593 patients. 92% of them were for generic drugs. CMS names the drug for 7,198 of them, across 106 drugs with 11 or more claims each, at $441,725 in total drug cost. In 2023, CMS named 6,859 claims across 107 drugs.
Part D claims, 20247,759
Drugs named by CMS106
Total drug cost$441,725
Part D patients593
Dr. May's Part D claims by kind of drug, 2024
- Generic7,162 claims92%
- Brand-name577 claims7%
- Other20 claims0%
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.
Drug classes CMS tracks in Dr. May's Part D claims, 2024
- Opioids9%689 of 7,759 claims
- Antibiotics1%97 of 7,759 claims
- Antipsychotics, patients 65 and over0%14 of 7,759 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: 6,8592024: 7,1985%
Drugs named by CMS: 106 in 2024, 107 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. Steffan John May offers telehealth to Medicare patients
Dr. May accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. May as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Steffan John May has 1 publication on record
Dmand AI links 1 paper to Dr. May.
Papers1
Recent publications by Dr. May
See who Dr. May researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. May works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Steffan John May received $170 in industry payments from 2016 to 2025
CMS Open Payments shows 12 general payments to Dr. May from 7 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $69.
General payments to Dr. May by program year, 2016 to 2025
Companies that paid Dr. May 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. Steffan John May graduated from Ohio State University College of Medicine
Dr. May graduated from Ohio State University College of Medicine in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Steffan John 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Steffan John 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. Steffan John May's NPI number?
Dr. Steffan John May's NPI number is 1194915397. It was assigned on July 25, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Steffan John May?
Dr. Steffan John May is an internist in Bozeman, Montana. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Steffan John May practice?
Dr. May practices at 915 Highland Blvd, Bozeman, MT 59715. Dr. May's primary practice is Bozeman Health Deaconess Regional Medical Center in Bozeman, Montana, part of Bozeman Deaconess Health Services. Dmand AI also links Dr. May to 2 hospitals, 1 group practice or clinic and 1 home health agency.
What is Dr. Steffan John May's office phone number?
The practice phone on file for Dr. May is (406) 585-5000.
What is Dr. Steffan John May's medical license number?
Dr. May holds Montana license 12395.
Which hospitals is Dr. Steffan John May affiliated with?
Dr. May practices at Bozeman Health Deaconess Regional Medical Center in Bozeman, Montana. Dr. May is also affiliated with Livingston HealthCare. Dmand AI links Dr. May to 2 more hospitals.
What medical group is Dr. Steffan John May part of?
Dr. May is linked to Bozeman Health.
Does Dr. Steffan John May accept Medicare?
Yes. CMS data shows Dr. May billed Medicare for 1,257 services in 2024, and Dr. May accepts Medicare assignment.
Does Dr. Steffan John May offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. May as offering telehealth services.
How many Medicare patients does Dr. Steffan John May see?
CMS counts 471 Medicare patients who saw Dr. May in 2024, with an average age of 75.
Show 6 more questionsShow fewer questions
What services does Dr. Steffan John May bill to Medicare?
In 2024, Dr. May's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and medicare service (G0439).
Where did Dr. Steffan John May go to medical school?
Dr. May graduated from Ohio State University College of Medicine in 2007.
What drugs does Dr. Steffan John May prescribe most?
In 2024 Medicare Part D data, Dr. May's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Levothyroxine Sodium.
Has Dr. Steffan John May received payments from drug or device companies?
CMS Open Payments shows $170 in general payments to Dr. May from 7 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Steffan John May been practicing?
Dr. May graduated from medical school in 2007, 19 years ago.
Does Dr. Steffan John May do research?
Dmand AI links 1 publication to Dr. May.
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