Medicare Enrolled
Dr. Sean Callahan, M.D.
Family Medicine · Oak Harbor, OH
Practice pattern: Clinical Cardiology
— Primarily office-based clinical cardiology
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. Callahan 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 →
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What this data tells you about Dr. Callahan
Dr. Sean Callahan is a family medicine specialist in Oak Harbor, OH, with 19 years of NPI registration. Based on federal Medicare data, Dr. Callahan performed 1,142 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. Callahan received a total of $8,612 from 44 pharmaceutical and/or device companies across 570 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Callahan 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.
✓ 19 years of NPI registration
▲ Top 19% volume in OH
$8,612 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗1,142
Medicare services
Top 19% in OH for family medicine
Not available
Unique patients (not deduplicated)
$70
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
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 |
|---|---|---|---|
| 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. |
618 | $81 | $207 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
166 | $58 | $136 |
| Hemoglobin A1c test (diabetes monitoring) A blood test that measures your average blood sugar levels over the past two to three months. |
97 | $9 | $43 |
| Initial nursing facility care, high complexity An initial visit by a healthcare provider to a patient in a nursing facility involving a high level of medical decision making, lasting at least 45 minutes. |
41 | $133 | $170 |
| Nursing facility visit, low complexity A daily follow-up visit for an existing patient in a nursing facility involving straightforward medical decision making. The visit requires at least 15 minutes of time if time is used to determine the level of care. |
39 | $52 | $80 |
| 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. |
32 | $126 | $278 |
| Nursing facility visit, moderate complexity A follow-up visit by a healthcare provider at a nursing facility for an established patient. The visit involves moderate medical decision making and takes at least 30 minutes. |
30 | $66 | $100 |
| Automated urinalysis An automated laboratory test performed on a urine sample to analyze its chemical and physical properties. The procedure uses machinery to detect various substances and cells within the urine. |
23 | $2 | $28 |
| Flu vaccine administration This procedure involves the administration of the influenza virus vaccine. It covers the process of delivering the vaccine to the patient. |
21 | $29 | $40 |
| Nursing facility discharge management, more than 30 minutes This service involves care coordination and management activities performed by a healthcare professional to prepare a patient for discharge from a nursing facility. It requires more than 30 minutes of time spent on these activities. |
20 | $90 | $115 |
| Quadrivalent influenza vaccine, preservative-free A flu shot containing four strains of the influenza virus, formulated without preservatives, administered in a 0.5 ml dose. |
17 | $22 | $33 |
| Nursing facility discharge management, 30 minutes or less This service covers the management of a patient's discharge from a nursing facility. It applies when the total time spent on discharge activities is 30 minutes or less. |
13 | $57 | $73 |
| Annual wellness visit, follow-up A follow-up annual wellness visit that includes a personalized prevention plan of service. |
13 | $115 | $214 |
| Annual alcohol misuse screening, 5 to 15 minutes | 12 | $18 | $32 |
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. These counts do not measure clinical quality or years of experience.
Industry Payment Transparency
Open Payments through 2024 ↗$8,612
Total received (2018-2024)
Avg $1,230/year across 7 years
Top 7% in OH for family medicine
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
44
Companies
570
Payment records
Payments are publicly reported; disclosure does not establish legality · Not evidence of wrongdoing · How to interpret →
Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
2024
$990
2023
$945
2022
$1,315
2021
$1,419
2020
$837
2019
$1,530
2018
$1,576
Payments by company (2024)
AstraZeneca Pharmaceuticals LP
$241
Amgen Inc.
$127
ABBVIE INC.
$120
Lilly USA, LLC
$72
Boehringer Ingelheim Pharmaceuticals, Inc.
$66
Bayer Healthcare Pharmaceuticals Inc.
$63
Novo Nordisk Inc
$50
Otsuka America Pharmaceutical, Inc.
$50
PFIZER INC.
$43
Pulmonx Corporation
$38
Esperion Therapeutics, Inc.
$34
IDORSIA PHARMACEUTICALS US INC
$28
Exact Sciences Corporation
$25
Paratek Pharmaceuticals, Inc.
$16
Lundbeck LLC
$16
Top 3 companies account for 49.3% of 2024 payments
All-time payments by company (2018-2024) ›
AstraZeneca Pharmaceuticals LP
$1,152
Novo Nordisk Inc
$853
Boehringer Ingelheim Pharmaceuticals, Inc.
$745
Lilly USA, LLC
$525
PFIZER INC.
$483
Salix Pharmaceuticals, a division of Bausch Health US, LLC
$375
Amgen Inc.
$355
ABBVIE INC.
$347
Janssen Pharmaceuticals, Inc
$344
Merck Sharp & Dohme Corporation
$331
AbbVie Inc.
$288
Novartis Pharmaceuticals Corporation
$231
Takeda Pharmaceuticals U.S.A., Inc.
$199
GlaxoSmithKline, LLC.
$190
E.R. Squibb & Sons, L.L.C.
$184
SANOFI-AVENTIS U.S. LLC
$180
Astellas Pharma US Inc
$172
Biohaven Pharmaceuticals, Inc.
$142
Kowa Pharmaceuticals America, Inc.
$137
Bayer HealthCare Pharmaceuticals Inc.
$127
Bayer Healthcare Pharmaceuticals Inc.
$117
Esperion Therapeutics, Inc.
$105
Amarin Pharma Inc.
$105
Otsuka America Pharmaceutical, Inc.
$99
Corcept Therapeutics
$99
Exact Sciences Corporation
$95
Eisai Inc.
$73
Teva Pharmaceuticals USA, Inc.
$66
IDORSIA PHARMACEUTICALS US INC
$58
Biohaven Pharmaceutical Holding Company Ltd.
$53
Merck Sharp & Dohme LLC
$43
Ferring Pharmaceuticals Inc.
$42
Allergan, Inc.
$40
Pulmonx Corporation
$38
Shield Therapeutics Inc
$34
Shire North American Group Inc
$30
Almatica Pharma LLC
$29
Allergan Inc.
$27
SCILEX PHARMACEUTICALS INC.
$22
Paratek Pharmaceuticals, Inc.
$16
Lundbeck LLC
$16
Biogen, Inc.
$16
Abbott Laboratories
$15
Avanir Pharmaceuticals, Inc.
$13
Top 3 companies account for 31.9% of all-time payments
Associated products mentioned in payments ›
ACCRUFER · AIMOVIG · AIRSUPRA · AJOVY · Aimovig · Amitiza · BASAGLAR · BELSOMRA · BEXSERO · BREZTRI · BYDUREON · BYSTOLIC · CHANTIX · Cologuard Collection Kit · Dayvigo · ELIQUIS · EMGALITY · ENTRESTO · EUCRISA · EUFLEXXA · EVENITY · FARXIGA · FASENRA · FREESTYLE LIBRE 2 · GARDASIL 9 · GATTEX · GRALISE · HUMALOG · INVOKANA · JANUVIA · JARDIANCE · Kerendia · Korlym · LINZESS · LYRICA · Livalo · MOUNJARO · MYDAYIS · MYRBETRIQ · Myrbetriq · NEXLETOL · NUEDEXTA · NURTEC ODT · NUZYRA · Otezla · Ozempic · PNEUMOVAX 23 · PREVNAR 20 · QULIPTA · QUVIVIQ · REXULTI · RYBELSUS · Repatha · Rybelsus · SEGLENTIS · SOLIQUA · SOLIQUA 100/33 · STIOLTO RESPIMAT · SYMBICORT · Saxenda · TOUJEO · TRELEGY ELLIPTA · TRINTELLIX · TRULICITY · Tresiba · Trintellix · UBRELVY · VESICARE · VRAYLAR · Vascepa · Veozah · Victoza · Wegovy · XARELTO · XIFAXAN · ZEPBOUND · ZEPHYR ENDOBRONCHIAL VALVE · ZTLido
Should you be concerned? Industry payments are disclosed through CMS Open Payments. Disclosure alone does not establish their purpose, legality, or effect on care. 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 →
Geographic Context
Family medicine physicians in nearby ZIP areas
165
County median income
$75,728
Nearest hospital to ZIP centroid (approximate)
MAGRUDER HOSPITAL
9.6 mi
9.6 mi
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not included | 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. Callahan is a clinical cardiology specialist, with above-average Medicare volume (top 19% in OH), with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Dr. Callahan experienced with office visit, established patient (30-39 min)?
Based on Medicare claims data, Dr. Callahan performed 618 office visit, established patient (30-39 min) services. These records cover Medicare fee-for-service activity, including eligible younger beneficiaries; they do not measure total practice volume or clinical quality.
Does Dr. Callahan receive payments from pharmaceutical companies?
Yes. Dr. Callahan received a total of $8,612 from 44 companies across 570 payment records. A record can group multiple payments. These transfers are publicly disclosed through CMS Open Payments. Disclosure alone does not establish their legality or effect on care. 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. Callahan's costs compare to other family medicine physicians in Oak Harbor?
Dr. Callahan's average Medicare payment per service is $70. 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. Callahan) 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 the presence of registry, enrollment, activity or payment records, not verified experience or clinical quality. 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?
Source publication dates and the snapshots loaded on this site can differ. Rebuilding a page does not refresh its source records. Check the Medicare reporting year and the payment interval shown above; consult the linked official sources for newer releases and current registry details. See our data freshness policy →
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About this page
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: 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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