STEFFAN JOHN MAY M.D.
NPI 1194915397
Internal Medicine in Bozeman, MT

Active since July 25, 2007PECOS EnrolledAccepts Medicare Assignment
937 HIGHLAND BLVD STE 5410, BOZEMAN, MT 59715(406) 522-2400(406) 587-3610 Get Directions Write a Review

NPPES record last updated: April 9, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 9, 2025, Jul 22, 2021 (2 updates tracked since 2021).

About Steffan John May M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEFFAN JOHN MAY M.D. (NPI 1194915397) is an individual internal medicine provider in Bozeman, Montana, licensed in Montana (12395) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS, is affiliated with Bozeman Health Deaconess Hospital, and is a graduate of Ohio State University College Of Medicine (2007).

NPPES Registry Identity

NPI1194915397
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameSTEFFAN JOHN MAYCredential: M.D.
Location Address937 HIGHLAND BLVD STE 5410Bozeman, MT 59715-6916
Mailing Address915 Highland BlvdBozeman, MT 59715-6902 · (406) 414-5000
Fax(406) 587-3610
Sole ProprietorNo
Medical School CMSOhio State University College Of MedicineGraduated 2007
Enumeration DateJuly 25, 2007
Last NPPES UpdateApril 9, 20252 updates tracked since enumeration
NPPES CertifiedApril 9, 2025
NPI 1194915397 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License Licensed in MT · 12395
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

937 HIGHLAND BLVD STE 5410, Bozeman, MT 59715

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Steffan John May M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6709078348
PECOS Enrollment IDI20101014000324
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
418 services302 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
212 services212 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
186 services133 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
142 services115 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Bozeman Health Deaconess Hospital

Acute Care Hospitals · Bozeman, MT
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number270057
Location915 Highland Blvd Suite 3310Bozeman, MT 59715 · Gallatin County
Emergency services Birthing friendly

Livingston Healthcare

Critical Access Hospitals · Livingston, MT
3/5 CMS rating
OwnershipPhysician
CMS Certification Number271317
Location320 Alpenglow LaneLivingston, MT 59047 · Park County
Emergency services

Madison Valley Medical Center

Critical Access Hospitals · Ennis, MT
OwnershipVoluntary non-profit - Private
CMS Certification Number271329
Location305 N MainEnnis, MT 59729 · Madison County
Emergency services

Big Sky Medical Center

Critical Access Hospitals · Big Sky, MT
OwnershipVoluntary non-profit - Private
CMS Certification Number271389
Location334 Town Center AveBig Sky, MT 59716 · Gallatin County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59715 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$130.52 typical visit price
range $56.81 – $172.26
Typical copayment $32.63 (range $14.20 – $43.06)
Most-billed visit code 99204
Established Patient
$100.16 typical visit price
range $18.24 – $140.32
Typical copayment $25.04 (range $4.56 – $35.08)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims 20

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
4 suppliers14 claims23 services$6.51 avg. paid by Medicare
Lubricant, individual sterile packet, each A4332
DME-Medical/Surgical Supplies · category DA000N
1 supplier11 claims2,200 services$0.10 avg. paid by Medicare
Intermittent urinary catheter; coude (curved) tip, with or without coating (teflon, silicone, silicone elastomeric, or hydrophilic, etc.), each A4352
DME-Orthotic Devices · category DF008N
1 supplier11 claims2,200 services$5.21 avg. paid by Medicare
Lubricant, per ounce A4402
DME-Orthotic Devices · category DF010N
1 supplier11 claims88 services$1.54 avg. paid by Medicare
Ostomy skin barrier, pectin-based, paste, per ounce A4406
DME-Orthotic Devices · category DF010N
1 supplier11 claims44 services$5.53 avg. paid by Medicare
Ostomy skin barrier, with flange (solid, flexible or accordion), without built-in convexity, 4 x 4 inches or smaller, each A4414
DME-Orthotic Devices · category DF010N
1 supplier11 claims220 services$4.76 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine
937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
Psychiatry & Neurology (Geriatric Psychiatry)
937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
Nurse Practitioner
937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
Internal Medicine
937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
Internal Medicine
937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
Internal Medicine
937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
Nurse Practitioner (Family)
937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715
Pharmacist
937 HIGHLAND BLVD STE 5410
BOZEMAN, MT 59715

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Steffan May's NPI number?

The NPI number for Steffan May is 1194915397. It was assigned to this individual provider in the NPPES registry on July 25, 2007.

Where is Steffan May located?

Steffan May practices at 937 Highland Blvd Ste 5410, Bozeman, MT 59715. The listed phone number is (406) 522-2400.

What is Steffan May's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Steffan May enrolled in Medicare?

Yes. Steffan May is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Steffan May accept?

Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP and Providence Health Plan list Steffan May as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Steffan May affiliated with any hospitals?

According to CMS data, Steffan May is affiliated with Bozeman Health Deaconess Hospital, Livingston Healthcare, Madison Valley Medical Center and Big Sky Medical Center.

When was this NPI record last updated?

The NPPES record for Steffan May was last updated on April 9, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.