Medicare Enrolled
Dr. Colin Hardin, M.D.
Hematology & Oncology · Grand Rapids, MI
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
Low-engagement
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating.
This page presents federal public records about Dr. Hardin from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Hardin?
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What this data tells you about Dr. Hardin
Dr. Colin Hardin is a hematology & oncology specialist in Grand Rapids, MI, with 14 years of NPI registration. Based on federal Medicare data, Dr. Hardin performed 25,387 Medicare services across 1,679 unique beneficiaries.
Between the years covered by Open Payments, Dr. Hardin received a total of $8,399 from 59 pharmaceutical and/or device companies across 330 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in hematology & oncology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Hardin is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
✓ 14 years in practice
▲ Top 17% volume in MI
$8,399 industry payments
Medicare Practice Summary
Medicare Utilization ↗25,387
Medicare services
Top 17% in MI for hematology & oncology
1,679
Unique beneficiaries
$6
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~1,813 Medicare services per year of practice
Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Iron infusion (Injectafer) An intravenous injection of ferric carboxymaltose, an iron replacement medication. |
20,250 | $1 | $2 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
713 | $8 | $15 |
| Complete blood count (CBC) with differential An automated laboratory test that measures the levels of red blood cells, white blood cells, and platelets in the blood, including a breakdown of the different types of white blood cells. |
683 | $8 | $26 |
| Flow cytometry, additional marker An additional marker is tested during a flow cytometry procedure to analyze DNA or cells. This step adds specific data points to the initial analysis. |
676 | $16 | $82 |
| Dexamethasone injection (steroid) An injection of dexamethasone sodium phosphate, a corticosteroid medication, administered in a dose of 1 milligram. |
436 | $0 | $1 |
| Office visit, established patient (30-39 min) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
355 | $89 | $189 |
| Comprehensive metabolic blood panel A blood test that measures a group of chemicals, including glucose, electrolytes, and kidney and liver function markers. |
338 | $10 | $35 |
| Hospital follow-up visit, high complexity Subsequent hospital inpatient or observation care for an existing patient involving high-level medical decision making, with at least 50 minutes total time on the date of the encounter. |
184 | $91 | $180 |
| Lactate dehydrogenase (LDH) level test A blood test that measures the amount of lactate dehydrogenase, an enzyme found in many body tissues. It helps assess tissue damage or disease. |
140 | $6 | $20 |
| Immunoglobulin level test A blood test that measures the level of gammaglobulins, which are immune system proteins. |
130 | $9 | $32 |
| Ferritin level test (iron stores) A blood test that measures the level of ferritin, a protein that stores iron in the body. |
119 | $13 | $46 |
| Drug injection, under skin or into muscle A procedure involving the administration of a medication or substance via injection into the subcutaneous tissue or muscle. |
106 | $10 | $38 |
| Iron level test | 100 | $6 | $22 |
| Intravenous injection of additional new drug or substance Administration of an additional new medication or substance directly into a vein. |
94 | $11 | $34 |
| Immunoglobulin light chain measurement A blood test that measures the levels of immunoglobulin light chains, which are proteins produced by plasma cells. |
86 | $17 | $43 |
| Initial hospital admission, high complexity Initial hospital inpatient or observation care for a new patient involving high-level medical decision making, with at least 75 minutes total time on the date of the encounter. |
86 | $131 | $304 |
| Non-hormonal chemotherapy injection This procedure involves administering non-hormonal anti-neoplastic chemotherapy medication via injection into the skin or muscle tissue. |
85 | $53 | $123 |
| Transferrin level test A blood test that measures the amount of transferrin, a protein that binds to and transports iron in the body. |
73 | $12 | $40 |
| Uric acid level test A blood test that measures the level of uric acid in your body. Uric acid is a waste product formed when the body breaks down purines. |
71 | $4 | $15 |
| Enhanced Oncology Model monthly payment This code represents the monthly enhanced oncology services payment under the Enhancing Oncology Model. It covers the administrative payment for enhanced services provided to eligible patients. |
68 | $75 | $70 |
| Intravenous chemotherapy infusion, 1 hour or less Administration of chemotherapy medication directly into a vein. The procedure takes one hour or less to complete. |
63 | $92 | $292 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
53 | $100 | $285 |
| Serum protein measurement A blood test that measures the total amount of protein in the serum. It helps evaluate overall health and nutritional status. |
50 | $11 | $37 |
| Intravenous infusion, 1 hour or less Administration of medication or fluid directly into a vein for therapeutic, preventive, or diagnostic purposes. The procedure lasts one hour or less. |
47 | $46 | $151 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
44 | $15 | $51 |
| Thyroid stimulating hormone (TSH) test A blood test that measures the level of thyroid stimulating hormone to evaluate thyroid function. |
40 | $16 | $57 |
| Office visit, established patient, complex (40-54 min) An office or outpatient visit for an existing patient lasting between 40 and 54 minutes. This level of service is determined by the total time spent on the date of the encounter. |
34 | $123 | $264 |
| Flow cytometry DNA or cell analysis, first marker A laboratory test that uses a laser to analyze cells or DNA by detecting a specific marker on the cell surface or within the cell. |
29 | $47 | $156 |
| Folic acid level test A blood test that measures the amount of folic acid in the serum. |
27 | $14 | $50 |
| Hepatitis B core antibody test A blood test that measures the level of antibodies to the hepatitis B core antigen. This test helps determine if a person has been infected with the hepatitis B virus. |
23 | $12 | $30 |
| Hepatitis B surface antigen test A blood test that uses an immunoassay technique to detect the presence of the hepatitis B surface antigen. This test identifies whether the hepatitis B virus is currently present in the body. |
23 | $10 | $26 |
| Intravenous drug injection A procedure involving the administration of a medication or substance directly into a vein. |
23 | $26 | $83 |
| Bone marrow biopsy and aspiration A procedure to remove a small sample of bone marrow and liquid for laboratory testing. The sample is analyzed to help diagnose various medical conditions. |
19 | $119 | $255 |
| Automated red blood cell count with calculations A blood test that automatically counts red blood cells and performs additional calculations to assess blood health. |
19 | $5 | $16 |
| Hospital follow-up visit, moderate complexity Follow-up hospital visit for an existing patient involving moderate medical decision making. The visit requires at least 35 minutes of time spent on the date of service. |
19 | $61 | $126 |
| Hospital discharge management, 30+ min This service covers the care provided by a physician or qualified healthcare professional on the day a patient is discharged from the hospital. It requires more than 30 minutes of total time spent on the day of discharge. |
17 | $85 | $236 |
| Telephone medical discussion, 11-20 minutes A phone conversation with a physician lasting between 11 and 20 minutes. |
16 | $64 | $130 |
| Normal saline infusion, 1000 cc Administration of 1000 cc of normal saline solution into a vein. This procedure involves the intravenous delivery of a sterile saltwater solution. |
13 | $2 | $4 |
| Hepatitis A antibody test A blood test that measures the level of antibodies to the hepatitis A virus in your body. This test helps determine if you have been exposed to the virus or if you have immunity from vaccination. |
12 | $12 | $31 |
| Hepatitis C antibody test A blood test that checks for antibodies to the hepatitis C virus. This test helps determine if a person has been exposed to the virus. |
12 | $14 | $36 |
| Hepatitis B surface antibody test A blood test that measures the level of antibodies against the hepatitis B surface antigen. This test is used to check for immunity to hepatitis B or to verify the effectiveness of the hepatitis B vaccine. |
11 | $11 | $27 |
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.
80.2% high complexity
3.0% medium
16.7% routine
Industry Payment Transparency
Open Payments through 2024 ↗$8,399
Total received (2018-2024)
Avg $1,200/year across 7 years
Top 21% in MI for hematology & oncology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
59
Companies
330
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →
Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$8,098 (96.4%)
Speaking / Promotional
Speaker programs, honoraria, and industry-sponsored educational events
$301 (3.6%)
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$3,482
2023
$2,099
2022
$1,700
2021
$49
2020
$27
2019
$350
2018
$693
Payments by company (2024)
Consulting
Speaking
Meals & Travel
Research
Regeneron Pharmaceuticals, Inc.
$1,668
Novartis Pharmaceuticals Corporation
$179
ABBVIE INC.
$151
Incyte Corporation
$143
Janssen Biotech, Inc.
$142
PFIZER INC.
$105
Merck Sharp & Dohme LLC
$103
GlaxoSmithKline, LLC.
$99
GENZYME CORPORATION
$74
AstraZeneca Pharmaceuticals LP
$64
Celgene Corporation
$61
Genentech USA, Inc.
$55
BeiGene USA, Inc.
$54
Karyopharm Therapeutics Inc.
$49
Amneal Pharmaceuticals LLC
$48
Astellas Pharma US Inc
$46
Daiichi Sankyo Inc.
$41
PharmaEssentia USA Corporation
$41
PUMA BIOTECHNOLOGY, INC.
$40
TerSera Therapeutics LLC
$39
EMD Serono, Inc.
$35
Lilly USA, LLC
$34
Ipsen Biopharmaceuticals, Inc
$28
Eisai Inc.
$25
JAZZ PHARMACEUTICALS INC.
$24
Myriad Genetic Laboratories, Inc.
$23
Genmab U.S., Inc.
$22
Gilead Sciences, Inc.
$21
E.R. Squibb & Sons, L.L.C.
$21
Acrotech Biopharma Inc.
$18
Rigel Pharmaceuticals, Inc.
$16
Stemline Therapeutics Inc.
$14
Top 3 companies account for 57.4% of 2024 payments
All-time payments by company (2018-2024) ›
Regeneron Pharmaceuticals, Inc.
$1,668
AstraZeneca Pharmaceuticals LP
$721
Genentech USA, Inc.
$436
Novartis Pharmaceuticals Corporation
$414
Incyte Corporation
$338
ABBVIE INC.
$334
PFIZER INC.
$311
Celgene Corporation
$305
Janssen Biotech, Inc.
$257
Amgen Inc.
$236
Gilead Sciences, Inc.
$204
Merck Sharp & Dohme LLC
$198
GlaxoSmithKline, LLC.
$198
E.R. Squibb & Sons, L.L.C.
$193
GENZYME CORPORATION
$178
Pharmacyclics LLC, an AbbVie Company
$133
Takeda Pharmaceuticals U.S.A., Inc.
$130
Foundation Medicine, Inc.
$124
Rigel Pharmaceuticals, Inc.
$121
Pharmacyclics LLC, An AbbVie Company
$120
Kite Pharma, Inc.
$112
BeiGene USA, Inc.
$110
Ipsen Biopharmaceuticals, Inc
$109
JAZZ PHARMACEUTICALS INC.
$101
Alexion Pharmaceuticals, Inc.
$100
Lilly USA, LLC
$99
Seagen Inc.
$93
Amneal Pharmaceuticals LLC
$88
Daiichi Sankyo Inc.
$88
EMD Serono, Inc.
$83
Astellas Pharma US Inc
$62
Karyopharm Therapeutics Inc.
$49
Exelixis Inc.
$44
PharmaEssentia USA Corporation
$41
EISAI INC.
$40
PUMA BIOTECHNOLOGY, INC.
$40
TerSera Therapeutics LLC
$39
Aadi Bioscience, Inc.
$38
Agios Pharmaceuticals, Inc.
$36
Puma Biotechnology, Inc.
$34
Deciphera Pharmaceuticals Inc.
$33
ADC Therapeutics America, Inc.
$29
Bayer Healthcare Pharmaceuticals Inc.
$28
CTI BioPharma Corp.
$27
Eisai Inc.
$25
Myriad Genetic Laboratories, Inc.
$23
Genmab U.S., Inc.
$22
Bayer HealthCare Pharmaceuticals Inc.
$19
Mirati Therapeutics, Inc.
$18
Acrotech Biopharma Inc.
$18
Taiho Oncology, Inc.
$17
Kyowa Kirin, Inc.
$17
Novo Nordisk Inc
$16
Myovant Sciences Inc.
$16
INSYS Therapeutics Inc
$15
Stemline Therapeutics Inc.
$14
Acrotech Biopharma LLC
$14
Adaptive Biotechnologies Corporation
$13
Merck Sharp & Dohme Corporation
$11
Top 3 companies account for 33.6% of all-time payments
Associated products mentioned in payments ›
ADCETRIS · ALUNBRIG · AVASTIN · Aliqopa · BAVENCIO · BELEODAQ · BESREMI · BLENREP · BOSULIF · BRUKINSA · Blincyto · CABLIVI · CABOMETYX · CALQUENCE · CARVYKTI · CERDELGA · Cabometyx · Columvi · DARZALEX · ELAHERE · ELREXFIO · ELZONRIS · ENHERTU · ENJAYMO · EPKINLY · ERLEADA · Epkinly · Esperoct · FASENRA · FOUNDATIONONE · Fabhalta · Fyarro · GAZYVA · IBRANCE · ICLUSIG · IMBRUVICA · IMFINZI · INJECTAFER · INLYTA · JAKAFI · JEMPERLI · KANJINTI · KEYTRUDA · KISQALI · KRAZATI · Kadcyla · Kyprolis · LONSURF · LUMAKRAS · LUTATHERA · LYNPARZA · Lenvima · Lunsumio · MEKINIST · MONJUVI · MYRISK · NINLARO · Neulasta · Nplate · OJJAARA · ONUREG · OPDIVO · OPDUALAG · ORGOVYX · Onivyde · PADCEV · PLUVICTO · PROMACTA · PYRUKYND · Perjeta · Phesgo · Pomalyst · Poteligeo · QINLOCK · REBLOZYL · RYLAZE · Rezlidhia · SARCLISA · SCEMBLIX · SOMATULINE DEPOT · SYNDROS · Stivarga · TAGRISSO · TECVAYLI · TUKYSA · Tavalisse · Tazverik · Trodelvy · ULTOMIRIS · Ultomiris · VENCLEXTA · VERZENIO · Vanflyta · Venclexta · Vonjo · Vyloy · XPOVIO · XTANDI · Xermelo · Xospata · Xtandi · Yescarta · ZEPZELCA · Zoladex · Zydelig · clonoSEQ
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →
Most payments (96%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
Hematology & oncology specialists within 10 mi
23
Per 100K population
3.5
County median income
$80,390
Nearest hospital
SPECTRUM HEALTH
0.0 mi
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Dr. Hardin is a mixed practice specialist, with above-average Medicare volume (top 17% in MI), with low-engagement industry engagement.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Hardin experienced with iron infusion (injectafer)?
Based on Medicare claims data, Dr. Hardin performed 20,250 iron infusion (injectafer) services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Hardin receive payments from pharmaceutical companies?
Yes. Dr. Hardin received a total of $8,399 from 59 companies across 330 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Hardin's costs compare to other hematology & oncology specialists in Grand Rapids?
Dr. Hardin's average Medicare payment per service is $6. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Hardin) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →
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About this page
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
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