DR. GREGORY PAUL LEMENSE MD
NPI 1912904483
Internal Medicine - Pulmonary Disease in Bozeman, MT

Q: What is Gregory Lemense's NPI number?

The NPI number for Gregory Lemense is 1912904483. It was assigned to this individual provider in the NPPES registry on June 30, 2005.

Q: What is Gregory Lemense's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Lemense was last updated on April 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 30, 2005PECOS EnrolledAccepts Medicare Assignment

85/100

CMS Quality Rating

3905 WELLNESS WAY STE 3B, BOZEMAN, MT 59718(406) 414-4250 Get Directions Write a Review

NPPES record last updated: April 10, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 10, 2025, Jul 30, 2021, Mar 12, 2020 and 3 more (6 updates tracked since 2017).

On this page

About Dr. Gregory Paul Lemense Md NPPES

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

DR. GREGORY PAUL LEMENSE MD (NPI 1912904483) is an individual pulmonary disease provider in Bozeman, Montana, licensed in Montana (MED-PHYS-LIC-70455) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Billings Clinic, and is a graduate of Vanderbilt University School Of Medicine (1989).

NPPES Registry Identity

NPI1912904483

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameDR. GREGORY PAUL LEMENSECredential: MD

Location Address3905 WELLNESS WAY STE 3BBozeman, MT 59718-2402

Mailing Address915 Highland BlvdBozeman, MT 59715-6902 · (406) 414-4250 · Fax (406) 414-4259

Phone(406) 414-4250

Sole ProprietorNo

Medical School CMSVanderbilt University School Of MedicineGraduated 1989

Enumeration DateJune 30, 2005

Last NPPES UpdateApril 10, 20256 updates tracked since enumeration

NPPES CertifiedApril 10, 2025

✔ NPI 1912904483 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

Licenses✔ Licensed in MT · MED-PHYS-LIC-70455✔ Licensed in TN · 21022

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 21022 (TN)

Also ListedInternal Medicine · Sleep MedicineTaxonomy 207RS0012X · License 21022 (TN)

3905 WELLNESS WAY STE 3B, Bozeman, MT 59718

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Other Identifiers 1

Medicaid1912904483MT

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gregory Paul Lemense 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 ID143370155

PECOS Enrollment IDI20190326002622

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.

Medicare Billing Reassignment

Medicare enrollment records show Gregory Lemense reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Bozeman Health Deaconess Hospital

4.6 mi

Emergency Medicine

915 HIGHLAND BLVD
Bozeman, MT 59715

Reassigned Medicare billing, Montana enrollment
402 clinicians in this Medicare group

NPI 1437529112 (406) 414-5000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 29

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.

316 services240 patients

Test to determine lung volumes using sensors 94726

This test, called spirometry, measures lung capacity using sensors. You breathe into a mouthpiece attached to a device that records the amount and rate of air you inhale and exhale. It helps diagnose and monitor lung conditions.

249 services240 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

249 services240 patients

Test to measure expiratory airflow and volume 94010

This test, known as spirometry, assesses how well your lungs work. It measures how much air you can inhale, how much you can exhale and how quickly you can exhale. It's non-invasive and helps diagnose conditions like asthma or COPD.

205 services193 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

114 services114 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.

104 services94 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

84 services82 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

61 services61 patients

Test to examine how well the lungs exchange gases 94729

56 services56 patients

Test to determine lung volumes using sensors 94726

55 services55 patients

Biopsy of lobe of lung using an endoscope, 1 lobe 31628

A lung biopsy is a procedure where a small piece of lung tissue is taken for testing. An endoscope, a flexible tube with a light and camera, is used. It's inserted through the mouth or nose, down the windpipe, and into one lobe of the lung.

52 services51 patients

Computer-assisted image-guided navigation of lung airways using an endoscope 31627

This procedure involves the use of a special camera, called an endoscope, and computer technology to create real-time images of your lung airways. This helps doctors navigate through your lungs accurately, aiding in diagnosis or treatment.

50 services48 patients

Exam of lung airways with diagnostic or therapeutic procedure on growths using an endoscope and ultrasound 31654

This procedure involves using a specialized instrument, called an endoscope, to examine the lung airways. An ultrasound is also used to get a clearer image of any growths. If necessary, the doctor can perform procedures to diagnose or treat these growths.

43 services42 patients

Carboxyhemoglobin (protein) level 82375

The Carboxyhemoglobin level test measures the amount of carbon monoxide attached to the hemoglobin in your red blood cells. This test is important as high levels may indicate carbon monoxide poisoning, which can cause serious health issues.

41 services41 patients

Methemoglobin (hemoglobin) analysis, quantitative 83050

Methemoglobin analysis is a blood test that measures the amount of methemoglobin, a form of hemoglobin, in your blood. This test helps diagnose conditions that affect oxygen delivery to your body's tissues. It's a simple, safe procedure.

41 services41 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

40 services40 patients

Blood count, hemoglobin 85018

A blood count, specifically hemoglobin, is a standard test that measures the amount of hemoglobin in your blood. Hemoglobin is a protein in red blood cells that carries oxygen throughout your body. This test helps assess your overall health and detect a variety of disorders such as anemia or polycythemia.

40 services40 patients

Test to measure expiratory airflow and volume 94010

37 services37 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.

33 services31 patients

Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 3 or more lymph nodes 31653

This procedure involves using a special scope and ultrasound to examine your lung airways and sample tissue from 3 or more lymph nodes. It aids in diagnosing lung conditions and checking lymph node health.

32 services32 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

29 services29 patients

Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 1-2 lymph nodes 31652

This procedure involves a special tube with a camera (endoscope) entering your lung airways. Guided by ultrasound, it collects samples from 1-2 lymph nodes. This helps doctors understand and diagnose potential issues in your lungs.

28 services28 patients

Needle biopsy of windpipe cartilage, airway, and/or lung using an endoscope 31629

A needle biopsy of windpipe cartilage, airway, or lung involves using a thin, flexible tube with a camera (endoscope) to access and collect tissue samples. This procedure helps doctors diagnose lung conditions or diseases effectively and safely.

26 services26 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

26 services26 patients

Irrigation and suction of lung airways to obtain cells using an endoscope 31624

This is a procedure where a thin, flexible tube called an endoscope is inserted through your mouth into the lungs. A small amount of saline is then introduced to wash the airways. The fluid, along with cells from the lung, is suctioned back for analysis.

25 services24 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

25 services25 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

24 services24 patients

Biopsy of lobe of lung using an endoscope, each additional lobe 31632

A biopsy of the lung lobe using an endoscope is a procedure where a small sample of lung tissue is taken for testing. If more than one lobe needs to be examined, the process is repeated. An endoscope, a flexible tube with a light and camera, is used to view and access the lung tissue.

12 services11 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Billings Clinic

Acute Care Hospitals · Billings, MT

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number270004

Location2800 10th Ave NBillings, MT 59101 · Yellowstone County

Emergency services Birthing friendly

St James Healthcare

Acute Care Hospitals · Butte, MT

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number270017

Location400 S Clark StButte, MT 59701 · Silver Bow County

Emergency services Birthing friendly

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

Barrett Hospital & Healthcare

Critical Access Hospitals · Dillon, MT

OwnershipGovernment - Hospital District or Authority

CMS Certification Number271318

Location600 Mt Hwy 91 SDillon, MT 59725 · Beaverhead County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 59718 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.

85/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

100

Improvement Activities

Cost

100

Referred Medical Equipment & Supplies CMS DME claims 10

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

9 suppliers186 claims188 services$19.18 avg. paid by Medicare

Portable oxygen contents, gaseous, 1 month's supply = 1 unit E0443

DME-Oxygen and Supplies · category DC000N

3 suppliers18 claims18 services$46.14 avg. paid by Medicare

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

2 suppliers17 claims17 services$802.62 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

14 suppliers569 claims580 services$109.70 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

4 suppliers146 claims146 services$36.12 avg. paid by Medicare

Formoterol fumarate, inhalation solution, fda approved final product, non-compounded, administered through dme, unit dose form, 20 micrograms J7606

DME-Drugs Administered Through DME · category DG006N

3 suppliers16 claims960 services$6.61 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 7

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

DR. JANET LEE M.D.

Internal Medicine (Critical Care Medicine)