Total Payments
$28,514
2024 Payments
$11,986
Companies
7
Transactions
14
Medicare Patients
3,928
Medicare Billing
$256,685
Payment Breakdown by Category
Consulting$25,971 (91.1%)
Travel$1,582 (5.5%)
Food & Beverage$960.53 (3.4%)
Payments by Nature
| Nature of Payment | Amount | Transactions | Share |
|---|---|---|---|
| Consulting Fee | $25,971 | 4 | 91.1% |
| Travel and Lodging | $1,582 | 3 | 5.5% |
| Food and Beverage | $960.53 | 7 | 3.4% |
Top Paying Companies
| Company | Total | Records | Latest Year |
|---|---|---|---|
| GENZYME CORPORATION | $11,696 | 1 | $0 (2018) |
| Novartis Pharmaceuticals Corporation | $6,353 | 6 | $0 (2024) |
| CALLIDITAS THERAPEUTICS US INC. | $5,634 | 3 | $0 (2024) |
| AstraZeneca UK Limited | $4,750 | 1 | $0 (2020) |
| Aerie Pharmaceuticals, Inc. | $37.35 | 1 | $0 (2018) |
| Alexion Pharmaceuticals, Inc. | $31.37 | 1 | $0 (2017) |
| Zimmer Biomet Holdings, Inc. | $12.83 | 1 | $0 (2018) |
Payment History by Year
| Year | Amount | Transactions | Top Company |
|---|---|---|---|
| 2024 | $11,986 | 9 | Novartis Pharmaceuticals Corporation ($6,353) |
| 2020 | $4,750 | 1 | AstraZeneca UK Limited ($4,750) |
| 2018 | $11,746 | 3 | GENZYME CORPORATION ($11,696) |
| 2017 | $31.37 | 1 | Alexion Pharmaceuticals, Inc. ($31.37) |
All Payment Transactions
14 individual payment records from CMS Open Payments
| Date | Company | Product | Nature | Form | Amount | Type |
|---|---|---|---|---|---|---|
| 11/08/2024 | Novartis Pharmaceuticals Corporation | — | Consulting Fee | Cash or cash equivalent | $5,025.00 | General |
| 11/08/2024 | Novartis Pharmaceuticals Corporation | — | Travel and Lodging | In-kind items and services | $601.41 | General |
| 11/08/2024 | Novartis Pharmaceuticals Corporation | — | Food and Beverage | In-kind items and services | $290.75 | General |
| 11/08/2024 | Novartis Pharmaceuticals Corporation | — | Travel and Lodging | In-kind items and services | $207.28 | General |
| 11/07/2024 | Novartis Pharmaceuticals Corporation | — | Food and Beverage | In-kind items and services | $139.99 | General |
| 10/15/2024 | CALLIDITAS THERAPEUTICS US INC. | TARPEYO (Drug) | Consulting Fee | Cash or cash equivalent | $4,500.00 | General |
| Category: Nephrology | ||||||
| 09/27/2024 | CALLIDITAS THERAPEUTICS US INC. | TARPEYO (Drug) | Travel and Lodging | Cash or cash equivalent | $773.54 | General |
| Category: Nephrology | ||||||
| 09/27/2024 | CALLIDITAS THERAPEUTICS US INC. | TARPEYO (Drug) | Food and Beverage | In-kind items and services | $360.00 | General |
| Category: Nephrology | ||||||
| 08/20/2024 | Novartis Pharmaceuticals Corporation | — | Food and Beverage | In-kind items and services | $88.24 | General |
| 08/21/2020 | AstraZeneca UK Limited | — | Consulting Fee | Cash or cash equivalent | $4,750.00 | General |
| 08/29/2018 | Aerie Pharmaceuticals, Inc. | Rhopressa (Drug) | Food and Beverage | In-kind items and services | $37.35 | General |
| Category: Ophthalmology | ||||||
| 08/02/2018 | GENZYME CORPORATION | FABRAZYME (Drug) | Consulting Fee | Cash or cash equivalent | $11,696.00 | General |
| Category: RARE DISEASE GENETICS | ||||||
| 01/05/2018 | Zimmer Biomet Holdings, Inc. | Eztetic (Device) | Food and Beverage | In-kind items and services | $12.83 | General |
| Category: Dental | ||||||
| 03/05/2017 | Alexion Pharmaceuticals, Inc. | SOLIRIS (Drug) | Food and Beverage | In-kind items and services | $31.37 | General |
| Category: Immunology | ||||||
Medicare Billing by Year
| Year | Procedures | Beneficiaries | Services | Submitted | Medicare Paid |
|---|---|---|---|---|---|
| 2023 | 7 | 409 | 1,259 | $73,697 | $25,339 |
| 2022 | 7 | 776 | 2,415 | $142,612 | $50,266 |
| 2021 | 7 | 1,319 | 4,243 | $239,105 | $86,220 |
| 2020 | 7 | 1,424 | 4,480 | $253,817 | $94,860 |
Total Patients
3,928
Total Services
12,397
Medicare Billing
$256,685
Procedure Codes
28
All Medicare Procedures & Services
28 procedure records from CMS Medicare Utilization — Page 1 of 2
| HCPCS | Description | Setting | Year | Patients | Services | Charges | Medicare Paid | Ratio |
|---|---|---|---|---|---|---|---|---|
| 88350 | Antibody evaluation, each additional single antibody stain procedure | Facility | 2023 | 77 | 628 | $47,037 | $13,343 | 28.4% |
| 88348 | Electron microscopy for diagnosis | Facility | 2023 | 64 | 64 | $6,858 | $3,614 | 52.7% |
| 88313 | Special stained specimen slides to examine tissue including interpretation and report | Facility | 2023 | 77 | 371 | $7,227 | $3,254 | 45.0% |
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | Facility | 2023 | 78 | 78 | $4,735 | $2,129 | 45.0% |
| 88346 | Antibody evaluation, initial single antibody stain procedure | Facility | 2023 | 77 | 77 | $5,767 | $2,030 | 35.2% |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | Facility | 2023 | 25 | 25 | $1,264 | $638.25 | 50.5% |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | Facility | 2023 | 11 | 16 | $809.12 | $330.83 | 40.9% |
| 88350 | Antibody evaluation, each additional single antibody stain procedure | Facility | 2022 | 145 | 1,215 | $91,004 | $26,450 | 29.1% |
| 88348 | Electron microscopy for diagnosis | Facility | 2022 | 127 | 130 | $13,930 | $7,473 | 53.7% |
| 88313 | Special stained specimen slides to examine tissue including interpretation and report | Facility | 2022 | 143 | 693 | $13,500 | $6,220 | 46.1% |
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | Facility | 2022 | 144 | 147 | $8,923 | $4,105 | 46.0% |
| 88346 | Antibody evaluation, initial single antibody stain procedure | Facility | 2022 | 146 | 149 | $11,160 | $4,018 | 36.0% |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | Facility | 2022 | 55 | 59 | $2,984 | $1,536 | 51.5% |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | Facility | 2022 | 16 | 22 | $1,113 | $463.91 | 41.7% |
| 88350 | Antibody evaluation, each additional single antibody stain procedure | Facility | 2021 | 247 | 1,983 | $148,527 | $43,871 | 29.5% |
| 88313 | Special stained specimen slides to examine tissue including interpretation and report | Facility | 2021 | 250 | 1,425 | $27,759 | $12,930 | 46.6% |
| 88348 | Electron microscopy for diagnosis | Facility | 2021 | 213 | 213 | $22,823 | $12,474 | 54.7% |
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | Facility | 2021 | 250 | 250 | $15,175 | $7,057 | 46.5% |
| 88346 | Antibody evaluation, initial single antibody stain procedure | Facility | 2021 | 247 | 247 | $18,500 | $6,759 | 36.5% |
| 88342 | Special stained specimen slides to examine tissue, initial procedure | Facility | 2021 | 91 | 91 | $4,602 | $2,391 | 52.0% |
| 88341 | Special stained specimen slides to examine tissue, each additional procedure | Facility | 2021 | 21 | 34 | $1,719 | $736.82 | 42.9% |
| 88350 | Antibody evaluation | Facility | 2020 | 261 | 2,077 | $155,567 | $47,681 | 30.6% |
| 88348 | Electron microscopy for diagnosis | Facility | 2020 | 231 | 232 | $25,410 | $13,986 | 55.0% |
| 88313 | Special stained specimen slides to examine tissue including interpretation and report | Facility | 2020 | 265 | 1,483 | $28,889 | $13,863 | 48.0% |
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | Facility | 2020 | 264 | 266 | $16,146 | $7,785 | 48.2% |
About Dr. Christopher Larsen, MD
Dr. Christopher Larsen, MD is a Anatomic Pathology healthcare provider based in Little Rock, Arkansas. This provider has been registered with the National Plan and Provider Enumeration System (NPPES) since 12/20/2007. The National Provider Identifier (NPI) number assigned to this provider is 1447434840.
According to the Centers for Medicare & Medicaid Services (CMS) Open Payments database, Dr. Christopher Larsen, MD has received a total of $28,514 in payments from pharmaceutical and medical device companies, with $11,986 received in 2024. These payments were reported across 14 transactions from 7 companies. The most common payment nature is "Consulting Fee" ($25,971).
As a Medicare-enrolled provider, Larsen has provided services to 3,928 Medicare beneficiaries, totaling 12,397 services with total Medicare billing of $256,685. Data is available for 4 years (2020–2023), covering 28 distinct procedure/service records.
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Practice Information
- Specialty Anatomic Pathology
- Location Little Rock, AR
- Active Since 12/20/2007
- Last Updated 04/07/2021
- Taxonomy Code 207ZP0101X
- Entity Type Individual
- NPI Number 1447434840
Products in Payments
- FABRAZYME (Drug) $11,696
- TARPEYO (Drug) $5,634
- Rhopressa (Drug) $37.35
- SOLIRIS (Drug) $31.37
- Eztetic (Device) $12.83
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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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