Dr. Tanner John Karger , DNP, APRN, CNP
Nurse Practitioner โข Fargo, ND
801 Broadway N
Fargo, ND 581023641
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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Dr. Tanner Karger is listed in NPPES under Nurse Practitioner.
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NPI assigned on June 9, 2023; this date does not establish years in practice.
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Published CMS data list 39 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ 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 โ Established patient outpatient office visit: 24 service units.
- 99214 โ Established patient outpatient office visit: 15 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Published CMS data list 194 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Potassium Citrate Er (Potassium Citrate) โ 39 prescription fills, including refills.
- Calcitriol โ 31 prescription fills, including refills.
- Lisinopril โ 28 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 8 records in the table ยท Guide: How to read Medicare Part D prescriber data
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Fewer Medicare Part B services than 85% of clinicians listed under Nurse Practitioner in Fargo, ND (2024, 111 clinicians with data). Median for this group: 235. Middle half: 123 to 381.
Fewer Medicare Part B services than 90% of clinicians listed under Nurse Practitioner in North Dakota (2024, 231 clinicians with data). Median for this group: 289. Middle half: 137 to 520.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 28 in 2023 to 39 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023โ2024.
Practice Location & Contact Primary Location
801 Broadway N
Fargo, ND 581023641
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 1 additional practice-address record in Fargo, ND. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Sanford Medical Center Fargo. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2023
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
86 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 โ by Provider, 2024.
Medicare-allowed amount
About $3,471 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 โ by Provider and Service, 2024.
Paid by Medicare
About $2,766 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 โ by Provider and Service, 2024.
30-day fills
326 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
$26,345 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 โ by Provider and Drug, 2024.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $20.93 in 2023
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 2023.
Years since graduation
3 years (graduated 2023)
CMS Doctors and Clinicians data list 2023 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
2023
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, โDoes your provider accept Medicare as full payment?โ
Telehealth (some services)
Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.
You may be able to have some visits without going to the office. Ask which visits can be done by telehealth.
What this does not show: Telehealth (some services)
It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Karger has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Karger 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 Fargo and North Dakota
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Fewer Medicare Part B services than 85% of clinicians listed under Nurse Practitioner in Fargo, ND (2024, 111 clinicians with data). Median for this group: 235. Middle half: 123 to 381.
Fewer Medicare Part B services than 90% of clinicians listed under Nurse Practitioner in North Dakota (2024, 231 clinicians with data). Median for this group: 289. Middle half: 137 to 520.
Medicare-allowed amount
A lower Medicare-allowed amount than 80% of clinicians listed under Nurse Practitioner in Fargo, ND (2024, 111 clinicians with data). Median for this group: $15,157. Middle half: $7,252 to $23,929.
A lower Medicare-allowed amount than 85% of clinicians listed under Nurse Practitioner in North Dakota (2024, 231 clinicians with data). Median for this group: $18,708. Middle half: $9,547 to $33,102.
Paid by Medicare
A lower Medicare payment amount than 80% of clinicians listed under Nurse Practitioner in Fargo, ND (2024, 111 clinicians with data). Median for this group: $10,962. Middle half: $5,176 to $17,302.
A lower Medicare payment amount than 85% of clinicians listed under Nurse Practitioner in North Dakota (2024, 231 clinicians with data). Median for this group: $13,850. Middle half: $7,092 to $24,985.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Nurse Practitioner in Fargo, ND (2024, 113 clinicians with data). Median for this group: 261. Middle half: 55 to 798.
Close to the middle for clinicians listed under Nurse Practitioner in North Dakota (2024, 259 clinicians with data). Median for this group: 302. Middle half: 57 to 1,199.
Part D drug cost
A higher Part D drug cost than 60% of clinicians listed under Nurse Practitioner in Fargo, ND (2024, 113 clinicians with data). Median for this group: $10,527. Middle half: $745 to $82,312.
Close to the middle for clinicians listed under Nurse Practitioner in North Dakota (2024, 259 clinicians with data). Median for this group: $16,097. Middle half: $837 to $123,120.
210 active clinicians are listed under Nurse Practitioner with a practice address in Fargo, ND (466 in North Dakota).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Fargo
20.5% of these 210 clinicians have the CMS telehealth indicator.
65.7% of these 210 clinicians are listed by CMS as accepting Medicare assignment.
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 39% from 28 in 2023 to 39 in 2024.
- 2023: 28
- 2024: 39
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Medicare-allowed amount
Medicare-allowed amount increased 10% from $3,144 in 2023 to $3,471 in 2024.
- 2023: $3,144
- 2024: $3,471
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Paid by Medicare
Paid by Medicare increased 10% from $2,505 in 2023 to $2,766 in 2024.
- 2023: $2,505
- 2024: $2,766
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Medicare Part D prescriptions
Medicare Part D prescriptions went from 13 in 2023 to 194 in 2024.
- 2023: 13
- 2024: 194
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30-day fills
30-day fills increased 919% from 32 in 2023 to 326 in 2024.
- 2023: 32
- 2024: 326
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Part D drug cost
Part D drug cost went from $422 in 2023 to $26,345 in 2024.
- 2023: $422
- 2024: $26,345
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2023 only.
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2023), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท 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 2023 (payments made January 1 โ December 31, 2023): fewer than 11 records totaling $20.93.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Mallinckrodt Hospital Products Inc. |
Food and Beverage
In-kind items and services
|
ACTHAR | General | $20.93 |
Source: CMS Open Payments, program year 2023, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2022โ2023 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 โ by Provider and Service data, 2023โ2024; 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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24 | 20 | $121.00 | $78.58 |
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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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15 | 15 | $369.80 | $105.70 |
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 |
|---|---|---|---|---|---|
| Potassium Citrate Er | Potassium Citrate | 39 | 1,539 | $1,857.70 | โ |
| Calcitriol | Calcitriol | 31 | 2,448 | $607.93 | 11 |
| Lisinopril | Lisinopril | 28 | 1,750 | $152.60 | โ |
| Allopurinol | Allopurinol | 25 | 1,260 | $155.12 | โ |
| Furosemide | Furosemide | 23 | 1,158 | $86.27 | โ |
| Sevelamer Carbonate | Sevelamer Carbonate | 20 | 374 | $2,041.78 | โ |
| Calcium Acetate | Calcium Acetate | 16 | 443 | $1,017.23 | โ |
| Renvela | Sevelamer Carbonate | 12 | 335 | $20,426.00 | โ |
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: 2023-07-18NUCC 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 PECOSPRACTITIONER - NURSE PRACTITIONER
I20231206000525
MN
8628430535
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Sanford Medical Center Fargo
1710 Ctr Ave W, Dilworth, MN 565291309
Phone: 7014172575
Sanford Medical Center Fargo
1220 Sheyenne St, West Fargo, ND 580782637
Phone: 7012344445
Sanford Medical Center Fargo
1412 Main St, Hawley, MN 56549
Phone: 2184833564
Sanford Medical Center Fargo
26246 Crane Rd, White Earth, MN 565919998
Phone: 2189834699
Sanford Medical Center Fargo
737 Broadway N, Fargo, ND 581024421
Phone: 7012342000
Sanford Medical Center Fargo
2801 University Dr S, Fargo, ND 581036029
Phone: 7012345673
Sanford Medical Center Fargo
5225 23rd Ave S, Fargo, ND 581047927
Phone: 7014172575
Sanford Medical Center Fargo
736 Broadway N, Fargo, ND 581024421
Phone: 7012342000
Sanford Medical Center Fargo
907 S Mill St, Fergus Falls, MN 565372743
Phone: 2187396208
Sanford Medical Center Fargo
1245 Washington Ave, Detroit Lakes, MN 565013905
Phone: 2188462000
Secondary Practice Locations
736 Broadway N
Fargo, ND 581024421
Phone: 7012343360
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine - Cardiovascular Disease
Pediatrics - Pediatric Hematology-Oncology
Doctor of Medicine (M.D.)
Internal Medicine - Nephrology
Doctor of Medicine (M.D.)
Nurse Practitioner
Family Nurse Practitioner (Certified)
Pathology - Anatomic Pathology & Clinical Pathology
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 801 BROADWAY N, FARGO, ND 581023641 (Tel: 7012342000)
Registered at PO BOX 5074, SIOUX FALLS, SD 571175074
NPI status registered as active in NPPES database
Registered at 736 BROADWAY N, FARGO, ND 581024421 (Tel: 7012343360)
Registered at 504 W MAIN AVE, FRAZEE, MN 565444108 (Tel: 7015521429)
Recorded as TANNER KARGER, DNP, APRN, CNP
Nurse Practitioner (license number reported to NPPES: ND R47285)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Fargo
- Megan Ahern, FNP-BC
- Angela Joneson, CNP
- Kayla Stremick, APRN, CNP
- Cammie Miller
- Melisha Vannett
- Jennifer Blais, APRN, CNP
Mailing Address
Po Box 5074
Sioux Falls, SD 571175074