Katherine Longardner
NPI: 1801215926
Total Payments
$9,125
2024 Payments
$3,079
Companies
20
Transactions
110
Medicare Patients
863
Medicare Billing
$189,902
Payment Breakdown by Category
Travel$3,371 (36.9%)
Food & Beverage$2,675 (29.3%)
Research$1,543 (16.9%)
Consulting$1,475 (16.2%)
Other$54.19 (0.6%)
Education$7.21 (0.1%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Travel and Lodging | $3,371 | 12 | 36.9% |
| Food and Beverage | $2,675 | 62 | 29.3% |
| Unspecified | $1,543 | 20 | 16.9% |
| Consulting Fee | $1,475 | 2 | 16.2% |
| Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program | $54.19 | 3 | 0.6% |
| Education | $7.21 | 11 | 0.1% |
Payments by Type
General
$7,582
90 transactions
Research
$1,543
20 transactions
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| Boston Scientific Corporation | $2,753 | 20 | $0 (2023) |
| Teva Pharmaceuticals USA, Inc. | $2,534 | 26 | $0 (2024) |
| Medtronic USA, Inc. | $1,632 | 14 | $0 (2019) |
| ABBVIE INC. | $856.13 | 4 | $0 (2024) |
| Amgen Inc. | $243.64 | 2 | $0 (2018) |
| Merz North America, Inc. | $232.72 | 3 | $0 (2019) |
| Abbott Laboratories | $164.54 | 3 | $0 (2024) |
| Amneal Pharmaceuticals LLC | $158.38 | 3 | $0 (2024) |
| UCB, Inc. | $94.09 | 1 | $0 (2017) |
| Adamas Pharmaceuticals, Inc. | $92.57 | 4 | $0 (2020) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $3,079 | 25 | Teva Pharmaceuticals USA, Inc. ($2,122) |
| 2023 | $821.84 | 6 | Boston Scientific Corporation ($719.39) |
| 2022 | $52.46 | 9 | Amneal Pharmaceuticals LLC ($34.28) |
| 2021 | $77.22 | 7 | Sunovion Pharmaceuticals Inc. ($33.70) |
| 2020 | $2,333 | 32 | Boston Scientific Corporation ($2,034) |
| 2019 | $2,032 | 24 | Medtronic USA, Inc. ($1,632) |
| 2018 | $634.96 | 6 | Teva Pharmaceuticals USA, Inc. ($375.15) |
| 2017 | $94.09 | 1 | UCB, Inc. ($94.09) |
All Payment Transactions
110 individual payment records from CMS Open Payments — Page 1 of 5
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 12/23/2024 | ABBVIE INC. | VYALEV (Drug) | Food and Beverage | In-kind items and services | $6.07 | General |
| Category: NEUROSCIENCE | ||||||
| 10/25/2024 | Abbott Laboratories | INFINITY (Device) | Food and Beverage | In-kind items and services | $105.86 | General |
| Category: Neuromodulation | ||||||
| 10/11/2024 | Teva Pharmaceuticals USA, Inc. | — | — | Cash or cash equivalent | $43.13 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 10/11/2024 | Teva Pharmaceuticals USA, Inc. | — | — | Cash or cash equivalent | $35.00 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 10/10/2024 | Teva Pharmaceuticals USA, Inc. | — | — | Cash or cash equivalent | $43.13 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 10/10/2024 | Teva Pharmaceuticals USA, Inc. | — | — | Cash or cash equivalent | $35.00 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/25/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $226.56 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/25/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $86.53 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/25/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $70.26 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/25/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $47.33 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/25/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $36.24 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/25/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $6.90 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/24/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $210.12 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/24/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $107.88 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/24/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $88.80 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/24/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $29.64 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/24/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $29.64 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/24/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $27.32 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/24/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $10.69 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/24/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $9.23 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/24/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $7.56 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 09/22/2024 | Teva Pharmaceuticals USA, Inc. | — | Travel and Lodging | In-kind items and services | $579.50 | General |
| 09/22/2024 | Teva Pharmaceuticals USA, Inc. | — | — | In-kind items and services | $391.80 | Research |
| Study: TV56286-NDG-20039 | ||||||
| 07/18/2024 | ABBVIE INC. | — | Consulting Fee | Cash or cash equivalent | $800.00 | General |
| 06/11/2024 | Amneal Pharmaceuticals LLC | — | Food and Beverage | In-kind items and services | $44.77 | General |
Research Studies & Clinical Trials
| Study Name | Company | Amount | Records |
|---|---|---|---|
| TV56286-NDG-20039 | Teva Pharmaceuticals USA, Inc. | $1,543 | 20 |
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 4 | 198 | 4,943 | $231,954 | $51,699 |
| 2022 | 5 | 267 | 5,846 | $266,714 | $68,299 |
| 2021 | 5 | 313 | 440 | $207,671 | $56,556 |
| 2020 | 3 | 85 | 94 | $47,573 | $13,348 |
Total Patients
863
Total Services
11,323
Medicare Billing
$189,902
Procedure Codes
26
All Medicare Procedures & Services
26 procedure records from CMS Medicare Utilization — Page 1 of 2
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| J0585 | Injection, onabotulinumtoxina, 1 unit | Office | 2023 | 11 | 4,710 | $113,550 | $23,029 | 20.3% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Office | 2023 | 70 | 97 | $52,613 | $13,768 | 26.2% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Facility | 2023 | 42 | 58 | $27,875 | $6,018 | 21.6% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2023 | 34 | 36 | $13,210 | $3,509 | 26.6% |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | Facility | 2023 | 16 | 16 | $11,024 | $2,235 | 20.3% |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | Office | 2023 | 12 | 12 | $8,628 | $2,049 | 23.8% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Facility | 2023 | 13 | 14 | $5,054 | $1,091 | 21.6% |
| J0585 | Injection, onabotulinumtoxina, 1 unit | Office | 2022 | 11 | 5,490 | $98,820 | $26,628 | 26.9% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Office | 2022 | 73 | 124 | $67,332 | $16,702 | 24.8% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Office | 2022 | 46 | 68 | $25,018 | $6,734 | 26.9% |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | Facility | 2022 | 38 | 56 | $24,304 | $6,222 | 25.6% |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | Office | 2022 | 27 | 27 | $19,413 | $4,821 | 24.8% |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | Facility | 2022 | 31 | 31 | $17,825 | $4,050 | 22.7% |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | Facility | 2022 | 28 | 33 | $9,735 | $2,070 | 21.3% |
| 99442 | Telephone medical discussion with physician, 11-20 minutes | Office | 2022 | 13 | 17 | $4,267 | $1,073 | 25.1% |
| 99215 | Established patient outpatient visit, total time 40-54 minutes | Office | 2021 | 80 | 167 | $84,195 | $24,197 | 28.7% |
| 99205 | New patient outpatient visit, total time 60-74 minutes | Office | 2021 | 58 | 58 | $39,793 | $10,379 | 26.1% |
| 99205 | New patient outpatient visit, total time 60-74 minutes | Facility | 2021 | 51 | 51 | $30,689 | $7,132 | 23.2% |
| 99215 | Established patient outpatient visit, total time 40-54 minutes | Facility | 2021 | 40 | 50 | $21,896 | $5,996 | 27.4% |
| 99214 | Established patient outpatient visit, total time 30-39 minutes | Office | 2021 | 39 | 49 | $17,206 | $4,960 | 28.8% |
| 99214 | Established patient outpatient visit, total time 30-39 minutes | Facility | 2021 | 20 | 26 | $8,021 | $2,078 | 25.9% |
| 99442 | Physician telephone patient service, 11-20 minutes of medical discussion | Office | 2021 | 13 | 15 | $3,333 | $1,139 | 34.2% |
| G2212 | Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or | Office | 2021 | 12 | 24 | $2,538 | $673.71 | 26.5% |
| 99205 | New patient office or other outpatient visit, typically 60 minutes | Office | 2020 | 41 | 41 | $26,076 | $7,284 | 27.9% |
| 99215 | Established patient office or other outpatient, visit typically 40 minutes | Office | 2020 | 27 | 33 | $14,817 | $4,185 | 28.2% |
About Katherine Longardner
Katherine Longardner is a Neurology with Special Qualifications in Child Neurology healthcare provider based in San Diego, California. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 04/16/2014. The National Provider Identifier (NPI) number assigned to this provider is 1801215926.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Katherine Longardner has received a total of $9,125 in payments from pharmaceutical and medical device companies, with $3,079 received in 2024. These payments were reported across 110 transactions from 20 companies. The most common payment nature is "Travel and Lodging" ($3,371).
As a Medicare-enrolled provider, Longardner has provided services to 863 Medicare beneficiaries, totaling 11,323 services with total Medicare billing of $189,902. Data is available for 4 years (2020–2023), covering 26 distinct procedure/service records.
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Practice Information
- Specialty Neurology with Special Qualifications in Child Neurology
- Location San Diego, CA
- Active Since 04/16/2014
- Last Updated 09/26/2025
- Taxonomy Code 2084N0402X
- Entity Type Individual
- NPI Number 1801215926
Products in Payments
- VERCISE (Device) $1,988
- ACTIVA (Device) $1,632
- AUSTEDO (Drug) $282.53
- XEOMIN (Biological) $232.72
- RYTARY (Drug) $129.78
- Aimovig (Biological) $121.81
- INFINITY (Device) $105.86
- Briviact (Drug) $94.09
- GOCOVRI (Drug) $92.57
- NUPLAZID (Drug) $89.98
- Infinity DBS Pulse Generators (Device) $58.68
- BOTOX (Biological) $52.39
- KYNMOBI (Drug) $47.03
- INBRIJA (Drug) $46.76
- GENERAL - DBS (Device) $45.18
- DUOPA (Drug) $28.12
- EMGALITY (Drug) $20.94
- Hizentra (Biological) $14.27
- Cholbam (Drug) $7.21
- VYALEV (Drug) $6.07
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Data Sources
Provider data from NPPES. Payment data from CMS Open Payments. Medicare data from CMS Medicare Provider Utilization. All data is public and updated periodically.
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