David Simeon Costner , APRN NP-BC
Nurse Practitioner • Plains, MT
406 W Railroad Ave
Plains, MT 598599597
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on December 4, 2010; this date does not establish years in practice.
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Published CMS data list 844 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99214 — Established patient outpatient office visit: 455 service units.
- G0439 — Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit: 162 service units.
- 85610 — Blood test, clotting time: 48 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 10 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 3,274 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Losartan Potassium — 303 prescription fills, including refills.
- Levothyroxine Sodium — 209 prescription fills, including refills.
- Atorvastatin Calcium — 200 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 81 records in the table · Guide: How to read Medicare Part D prescriber data
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More Medicare Part B services than 85% of clinicians listed under Nurse Practitioner in Montana (2024, 142 clinicians with data). Median for this group: 297. Middle half: 95 to 559.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 409 in 2021 to 844 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021–2024.
Practice Location & Contact Primary Location
406 W Railroad Ave
Plains, MT 598599597
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2010
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
250 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $71,378 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $50,141 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
8,162 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$215,962 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $11.93 in 2025
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2025.
Years since graduation
16 years (graduated 2010)
CMS Doctors and Clinicians data list 2010 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2010
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Can order Medicare-covered services
CMS lists David Costner as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Plains and Montana
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 85% of clinicians listed under Nurse Practitioner in Montana (2024, 142 clinicians with data). Median for this group: 297. Middle half: 95 to 559.
Too few clinicians listed under Nurse Practitioner in Plains have Medicare Part B data for 2024 to compare.
Medicare-allowed amount
A higher Medicare-allowed amount than 95% of clinicians listed under Nurse Practitioner in Montana (2024, 142 clinicians with data). Median for this group: $22,235. Middle half: $7,818 to $40,398.
Too few clinicians listed under Nurse Practitioner in Plains have Medicare Part B data for 2024 to compare.
Paid by Medicare
A higher Medicare payment amount than 95% of clinicians listed under Nurse Practitioner in Montana (2024, 142 clinicians with data). Median for this group: $16,733. Middle half: $6,443 to $28,018.
Too few clinicians listed under Nurse Practitioner in Plains have Medicare Part B data for 2024 to compare.
Medicare Part D prescriptions
More Part D prescriptions than 85% of clinicians listed under Nurse Practitioner in Montana (2024, 161 clinicians with data). Median for this group: 475. Middle half: 120 to 1,549.
Too few clinicians listed under Nurse Practitioner in Plains have Medicare Part D data for 2024 to compare.
Part D drug cost
A higher Part D drug cost than 80% of clinicians listed under Nurse Practitioner in Montana (2024, 161 clinicians with data). Median for this group: $18,805. Middle half: $1,327 to $123,730.
Too few clinicians listed under Nurse Practitioner in Plains have Medicare Part D data for 2024 to compare.
2 active clinicians are listed under Nurse Practitioner with a practice address in Plains, MT (288 in Montana).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services increased 106% from 409 in 2021 to 844 in 2024.
- 2021: 409
- 2022: 983
- 2023: 1,018
- 2024: 844
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Medicare-allowed amount
Medicare-allowed amount increased 86% from $38,360 in 2021 to $71,378 in 2024.
- 2021: $38,360
- 2022: $85,029
- 2023: $75,942
- 2024: $71,378
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Paid by Medicare
Paid by Medicare increased 67% from $30,026 in 2021 to $50,141 in 2024.
- 2021: $30,026
- 2022: $57,611
- 2023: $54,283
- 2024: $50,141
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 14% from 2,867 in 2020 to 3,274 in 2024.
- 2020: 2,867
- 2021: 2,806
- 2022: 2,685
- 2023: 2,826
- 2024: 3,274
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30-day fills
30-day fills increased 39% from 5,887 in 2020 to 8,162 in 2024.
- 2020: 5,887
- 2021: 6,114
- 2022: 6,252
- 2023: 7,008
- 2024: 8,162
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Part D drug cost
Part D drug cost increased 75% from $123,056 in 2020 to $215,962 in 2024.
- 2020: $123,056
- 2021: $148,632
- 2022: $172,251
- 2023: $237,329
- 2024: $215,962
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2025 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $11.93.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Phathom Pharmaceuticals, Inc. |
Food and Beverage
Cash or cash equivalent
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VOQUEZNA | General | $11.93 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2020–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2021–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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455 | 189 | $212.60 | $106.41 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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162 | 162 | $120.00 | $107.38 |
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85610
Blood test, clotting time
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48 | 11 | $38.75 | $4.20 |
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99211
Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional
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43 | 17 | $60.80 | $19.50 |
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83036
Hemoglobin a1c level
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39 | 29 | $40.00 | $9.52 |
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81003
Automated urinalysis test
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38 | 24 | $27.70 | $2.20 |
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99203
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
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22 | 22 | $234.05 | $93.42 |
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G0402
Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment
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13 | 13 | $168.68 | $137.81 |
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93000
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report
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12 | 12 | $120.00 | $12.00 |
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93010
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only
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12 | 12 | $120.00 | $6.69 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Losartan Potassium | Losartan Potassium | 303 | 25,778 | $4,052.75 | 91 |
| Levothyroxine Sodium | Levothyroxine Sodium | 209 | 18,220 | $2,695.60 | 57 |
| Atorvastatin Calcium | Atorvastatin Calcium | 200 | 18,260 | $2,088.24 | 66 |
| Gabapentin | Gabapentin | 148 | 7,635 | $1,381.43 | 50 |
| Omeprazole | Omeprazole | 141 | 12,590 | $1,588.90 | 47 |
| Amlodipine Besylate | Amlodipine Besylate | 131 | 11,712 | $726.25 | 41 |
| Lisinopril | Lisinopril | 103 | 9,270 | $776.63 | 30 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 92 | 2,041 | $3,473.60 | 43 |
| Metoprolol Succinate | Metoprolol Succinate | 89 | 8,130 | $1,626.52 | 31 |
| Hydrochlorothiazide | Hydrochlorothiazide | 74 | 6,364 | $471.79 | 23 |
| Rosuvastatin Calcium | Rosuvastatin Calcium | 73 | 6,674 | $584.60 | 22 |
| Azithromycin | Azithromycin | 58 | 290 | $317.96 | 42 |
| Eliquis | Apixaban | 58 | 2,955 | $56,940.84 | 14 |
| Tamsulosin Hcl | Tamsulosin Hcl | 57 | 4,805 | $945.61 | 25 |
| Lantus Solostar | Insulin Glargine,hum.Rec.Anlog | 54 | 3,087 | $11,664.27 | 15 |
| Trazodone Hcl | Trazodone Hcl | 52 | 4,020 | $429.59 | 17 |
| Prednisone | Prednisone | 45 | 1,159 | $207.20 | 21 |
| Metoprolol Tartrate | Metoprolol Tartrate | 44 | 3,653 | $124.75 | 13 |
| Furosemide | Furosemide | 44 | 3,352 | $233.44 | 19 |
| Ezetimibe | Ezetimibe | 39 | 3,220 | $1,137.92 | 16 |
| Simvastatin | Simvastatin | 36 | 3,330 | $290.14 | 11 |
| Fluticasone Propionate | Fluticasone Propionate | 36 | 1,297 | $861.95 | 15 |
| Hydralazine Hcl | Hydralazine Hcl | 36 | 2,270 | $225.83 | — |
| Allopurinol | Allopurinol | 35 | 3,160 | $197.20 | 13 |
| Metformin Hcl | Metformin Hcl | 35 | 3,110 | $192.12 | 13 |
(top 25 shown)
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2026-04-24NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSSources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 406 W RAILROAD AVE, PLAINS, MT 598599597 (Tel: 4065405757)
Registered at 406 W RAILROAD AVE, PLAINS, MT 598599597 (Tel: 4065405757)
Registered at 228 BUCHER DR, MOUNTAIN HOME, AR 726533400 (Tel: 8704254416)
Registered at PO BOX 707, MOUNTAIN HOME, AR 726540707 (Tel: 8704247070)
Registered at 1112 LEONARD DR, MOUNTAIN HOME, AR 726534834 (Tel: 4062237966)
Registered at 406 W RAILROAD AVE, PLAINS, MT 59859 (Tel: 4065405757)
Registered at 406 W RAILROAD AVE, PLAINS, MT 59859 (Tel: 4065405757)
Recorded as DAVID COSTNER, APRN NP-BC
Registered at 406 W RAILROAD AVE, PLAINS, MT 598599597 (Tel: 8656579784)
Recorded as DAVID COSTNER, APRN, NP-BC
NPI status registered as active in NPPES database
Registered at 702 GROVE ST, SUITE 204, LOUDON, TN 377741481 (Tel: 8656579784)
Registered at PO BOX 768, SUITE 204, PLAINS, MT 598590768 (Tel: 4068264813)
Recorded as DAVID COSTNER, MSN, APN, NP-BC
Nurse Practitioner (license number reported to NPPES: MT NUR-APRN-LIC-102425)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Mailing Address
406 W Railroad Ave
Plains, MT 598599597
Phone: 4065405757