JOHN W MAHAN III MD
NPI 1346241296
Hospitalist in Great Falls, MT

Active since August 02, 2005PECOS EnrolledAccepts Medicare Assignment
80.46/100
CMS Quality Rating
1101 26TH ST S, GREAT FALLS, MT 59405(406) 731-8888(406) 731-8876 Get Directions Write a Review

NPPES record last updated: April 8, 2024. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Apr 8, 2024, Jul 21, 2022, Jul 3, 2017 (3 updates tracked since 2017).

About John W Mahan Iii Md NPPES

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

JOHN W MAHAN III MD (NPI 1346241296) is an individual hospitalist provider in Great Falls, Montana, licensed in Montana (7173) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, is affiliated with Benefis Hospitals Inc, and is a graduate of University Of New Mexico School Of Medicine (1989).

NPPES Registry Identity

NPI1346241296
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameJOHN W MAHAN IIICredential: MD
Location Address1101 26TH ST SGreat Falls, MT 59405-5161
Mailing Address1101 26th St SGreat Falls, MT 59405-5161 · (406) 731-8888 · Fax (406) 731-8876
Fax(406) 731-8876
Sole ProprietorNo
Medical School CMSUniversity Of New Mexico School Of MedicineGraduated 1989
Enumeration DateAugust 2, 2005
Last NPPES UpdateApril 8, 20243 updates tracked since enumeration
NPPES CertifiedApril 8, 2024
NPI 1346241296 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License Licensed in MT · 7173
Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedInternal MedicineTaxonomy 207R00000X · License 7173 (MT)
1101 26TH ST S, Great Falls, MT 59405

Other Identifiers 1

Medicaid0096720MT

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

John W Mahan Iii Md 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 ID244336261
PECOS Enrollment IDI20130513000427
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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
503 services137 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
267 services147 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
153 services142 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
130 services66 patients

Hospital Affiliations CMS Care Compare

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

Benefis Hospitals Inc

Acute Care Hospitals · Great Falls, MT
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number270012
Location1101 26th St SGreat Falls, MT 59405 · Cascade County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59405 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

80.46/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality93.1
Promoting Interoperability75
Improvement Activities40
Cost62.61

Referred Medical Equipment & Supplies CMS DME claims 2

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
3 suppliers14 claims14 services$15.88 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
6 suppliers81 claims82 services$105.03 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.

Hospitalist
1101 26TH ST S
GREAT FALLS, MT 59405
Internal Medicine (Clinical Cardiac Electrophysiology)
1101 26TH ST S
GREAT FALLS, MT 59405
Occupational Therapy Assistant
1101 26TH ST S
GREAT FALLS, MT 59405
Occupational Therapist
1101 26TH ST S
GREAT FALLS, MT 59405
Neurological Surgery
1101 26TH ST S
GREAT FALLS, MT 59405
Nurse Practitioner (Family)
1101 26TH ST S
GREAT FALLS, MT 59405
Pharmacist
1101 26TH ST S
GREAT FALLS, MT 59405
Radiology (Diagnostic Radiology)
1101 26TH ST S
GREAT FALLS, MT 59405

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 John Mahan's NPI number?

The NPI number for John Mahan is 1346241296. It was assigned to this individual provider in the NPPES registry on August 2, 2005.

Where is John Mahan located?

John Mahan practices at 1101 26th St S, Great Falls, MT 59405. The listed phone number is (406) 731-8888.

What is John Mahan's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is John Mahan enrolled in Medicare?

Yes. John Mahan 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.

Is John Mahan affiliated with any hospitals?

According to CMS data, John Mahan is affiliated with Benefis Hospitals Inc.

When was this NPI record last updated?

The NPPES record for John Mahan was last updated on April 8, 2024. NPI Profile syncs with the weekly NPPES data releases published by CMS.