Medicare Enrolled
Dr. Peter O'Carroll, M.D.
Clinical Neurophysiology Physician · Granbury, TX
Practice pattern: Mixed Practice
— Diverse clinical practice across multiple procedure types
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. O'Carroll 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. O'Carroll
Dr. Peter O'Carroll is a clinical neurophysiology physician in Granbury, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. O'Carroll performed 18,378 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Dr. O'Carroll received a total of $113,495 from 68 pharmaceutical and/or device companies across 1331 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. O'Carroll 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 6% volume in TX
$113,495 industry payments
Medicare Practice Summary — 2023
Medicare Utilization ↗18,378
Medicare services
Top 6% in TX for clinical neurophysiology physician
Not available
Unique patients (not deduplicated)
$11
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 |
|---|---|---|---|
| Botox injection, per unit An injection of onabotulinumtoxinA, a medication used to temporarily relax muscles or reduce gland activity. The dose is measured in units, with this code representing a single unit administered. |
17,020 | $5 | $24 |
| 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. |
378 | $91 | $283 |
| Limited needle EMG of arm or leg muscles A test that measures the electrical activity in specific muscles of the arm or leg using a needle electrode. This limited study evaluates muscle function in a targeted area. |
205 | $47 | $196 |
| 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. |
193 | $125 | $381 |
| New patient office visit, complex (60-74 min) | 103 | $148 | $548 |
| Nerve conduction studies, 7-8 tests A series of 7 to 8 nerve conduction tests to evaluate how well nerves are sending signals to muscles. |
95 | $134 | $485 |
| Electromyography of arm or leg muscles A test that measures the electrical activity in the muscles of the arm or leg using a needle electrode. It helps evaluate the health of muscles and the nerve cells that control them. |
94 | $76 | $240 |
| Bilateral facial and neck nerve muscle paralysis injection Injection of a chemical agent to paralyze muscles in the face and neck on both sides. |
63 | $102 | $379 |
| 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. |
42 | $121 | $438 |
| Nerve conduction study, 3-4 tests A diagnostic test that measures how well nerves send electrical signals. It involves performing 3 to 4 separate nerve conduction studies to evaluate nerve function. |
34 | $82 | $307 |
| Blood draw (venipuncture) Insertion of a needle into a vein to collect a blood sample. |
33 | $8 | $21 |
| Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle | 33 | $51 | $163 |
| EEG brain wave test, 61-119 minutes This procedure measures electrical activity in the brain using electrodes placed on the scalp. It records brain wave patterns for a duration between 61 and 119 minutes. |
30 | $62 | $250 |
| Nerve conduction studies, 13 or more A diagnostic test that measures how well nerves send electrical signals. This code applies when 13 or more individual nerve studies are performed. |
15 | $218 | $805 |
| Online digital E/M service, established patient, 21+ minutes An online digital evaluation and management service for an established patient. This service requires a total time of 21 or more minutes over a period of up to 7 days. |
14 | $28 | $129 |
| Vitamin B-12 level test A blood test that measures the amount of vitamin B-12 in your body. |
13 | $15 | $62 |
| Nerve conduction studies, 5-6 tests A series of 5 to 6 tests that measure how well nerves send electrical signals. The procedure evaluates nerve function and helps identify damage or dysfunction. |
13 | $103 | $370 |
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 ↗$113,495
Total received (2018-2024)
Avg $16,214/year across 7 years
Top 2% in TX for clinical neurophysiology physician
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
68
Companies
1,331
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
$7,977
2023
$9,163
2022
$35,349
2021
$23,748
2020
$24,852
2019
$5,140
2018
$7,264
Payments by company (2024)
ABBVIE INC.
$5,991
Lilly USA, LLC
$261
PFIZER INC.
$211
Biogen, Inc.
$210
Novartis Pharmaceuticals Corporation
$158
SK Life Science, Inc.
$149
MDD US Operations, LLC
$127
UCB, Inc.
$96
Eisai Inc.
$87
Alnylam Pharmaceuticals Inc.
$79
Amgen Inc.
$64
Aucta Pharmaceuticals, Inc.
$62
Amneal Pharmaceuticals LLC
$61
TG Therapeutics, Inc.
$60
ARGENX US, INC.
$58
Neurocrine Biosciences, Inc.
$50
Neurelis, Inc.
$47
Sumitomo Pharma America, Inc.
$47
Grifols USA, LLC
$37
Genentech USA, Inc.
$30
Teva Pharmaceuticals USA, Inc.
$26
Alexion Pharmaceuticals, Inc.
$18
Mallinckrodt Hospital Products Inc.
$17
MITSUBISHI TANABE PHARMA AMERICA, INC.
$17
Kyowa Kirin, Inc.
$15
Top 3 companies account for 81.0% of 2024 payments
All-time payments by company (2018-2024) ›
ABBVIE INC.
$38,982
Amgen Inc.
$27,807
Allergan, Inc.
$17,269
AbbVie Inc.
$10,805
Supernus Pharmaceuticals, Inc.
$6,130
Teva Pharmaceuticals USA, Inc.
$1,719
UCB, Inc.
$1,333
Biogen, Inc.
$1,043
Novartis Pharmaceuticals Corporation
$763
Sunovion Pharmaceuticals Inc.
$698
Lilly USA, LLC
$665
Amneal Pharmaceuticals LLC
$530
PFIZER INC.
$407
SK Life Science, Inc.
$399
Neurocrine Biosciences, Inc.
$303
Adamas Pharmaceuticals, Inc.
$290
GENZYME CORPORATION
$270
Lundbeck LLC
$246
Genentech USA, Inc.
$227
ACADIA Pharmaceuticals Inc
$186
ARGENX US, INC.
$173
MDD US Operations, LLC
$170
Biohaven Pharmaceuticals, Inc.
$167
Biohaven Pharmaceutical Holding Company Ltd.
$166
Allergan Inc.
$163
Acorda Therapeutics, Inc
$156
UPSHER-SMITH LABORATORIES LLC
$153
Alnylam Pharmaceuticals Inc.
$150
Kyowa Kirin, Inc.
$144
Eisai Inc.
$143
Impax Laboratories, Inc.
$131
Sumitomo Pharma America, Inc.
$126
Avanir Pharmaceuticals, Inc.
$125
Alexion Pharmaceuticals, Inc.
$108
Neurelis, Inc.
$104
Horizon Therapeutics plc
$93
AbbVie, Inc.
$91
Promius Pharma LLC
$72
Ipsen Biopharmaceuticals, Inc
$62
Aucta Pharmaceuticals, Inc.
$62
Upsher-Smith Laboratories LLC
$62
TG Therapeutics, Inc.
$60
Currax Pharmaceuticals LLC
$57
Avion Pharmaceuticals
$55
EMD Serono, Inc.
$55
MITSUBISHI TANABE PHARMA AMERICA, INC.
$51
Medtronic, Inc.
$51
Otsuka America Pharmaceutical, Inc.
$40
Grifols USA, LLC
$37
Almatica Pharma LLC
$34
Abbott Laboratories
$31
IMPEL PHARMACEUTICALS INC.
$28
Takeda Pharmaceuticals U.S.A., Inc.
$27
GE HEALTHCARE
$25
Nevro Corp.
$24
Corium, LLC
$23
CSL Behring
$23
Mallinckrodt Enterprises LLC
$22
EISAI INC.
$19
AQUESTIVE THERAPEUTICS, INC.
$18
Greenwich Biosciences, Inc.
$18
Boston Scientific Corporation
$18
Janssen Pharmaceuticals, Inc
$18
Mallinckrodt Hospital Products Inc.
$17
Mitsubishi Tanabe Pharma America, Inc.
$16
CATALYST PHARMACEUTICALS, INC.
$13
Assertio Therapeutics, Inc.
$13
ASSERTIO THERAPEUTICS, Inc.
$11
Top 3 companies account for 74.1% of all-time payments
Associated products mentioned in payments ›
ACTHAR · ACTIVA · ADLARITY · ADUHELM · AIMOVIG · AJOVY · AMPYRA · AMYVID · APOKYN · APTIOM · AUBAGIO · AUSTEDO · AVONEX · Aimovig · Austedo XR · BOTOX · BOTOX THERAPEUTIC · BRIUMVI · Briviact · CONTRAVE · COPAXONE · CREXONT · DUOPA · DYSPORT · Dhivy · Duopa · EMGALITY · Enspryng · Epidiolex · FIRDAPSE · Fycompa · GAMMAGARD · GOCOVRI · Gamunex-C · Gocovri · Gralise · Hizentra · INBRIJA · INFINITY · INGREZZA · Infinity DBS Pulse Generators · KESIMPTA · KISUNLA · KYNMOBI · LEQEMBI · LYRICA · LYVISPAH · Leqembi · MAYZENT · MOUNJARO · Mavenclad · Motpoly XR · NAMZARIC · NAPRELAN · NORTHERA · NOURIANZ · NUEDEXTA · NUPLAZID · NURTEC ODT · Nayzilam · Neupro · Nourianz · Nuedexta · OCREVUS · OCTAGAM IMMUNE GLOBULIN (HUMAN) · ONGENTYS 50MG CAPSULES 30 · ONPATTRO · OXTELLAR XR · Ocrevus · Omnia · Ongentys · PERCEPT PC BRAINSENSE · PLEGRIDY · Ponvory · QELBREE · QUDEXY XR Topiramate Extended Release Capsules · QULIPTA · RADICAVA · REXULTI · RINVOQ · RYTARY · Rystiggo · SKYCLARYS · SOLIRIS · SYMPAZAN · TECFIDERA · TOSYMRA · TOSYMRA SUMATRIPTAN NASAL SPRAY · TROKENDI XR · TYSABRI · Trudhesa · UBRELVY · ULTOMIRIS · UPLIZNA · VALTOCO · VRAYLAR · VUMERITY · VYEPTI · VYVGART · VYVGART HYTRULO · Vimpat · ZEMBRACE SYMTOUCH · Zembrace
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
Clinical neurophysiology physicians in nearby ZIP areas
1
County median income
$86,802
Nearest hospital to ZIP centroid (approximate)
LAKE GRANBURY MEDICAL CENTER
0.0 mi
0.0 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. O'Carroll is a mixed practice specialist, with above-average Medicare volume (top 6% in TX), 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. O'Carroll experienced with botox injection, per unit?
Based on Medicare claims data, Dr. O'Carroll performed 17,020 botox injection, per unit 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. O'Carroll receive payments from pharmaceutical companies?
Yes. Dr. O'Carroll received a total of $113,495 from 68 companies across 1,331 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. O'Carroll's costs compare to other clinical neurophysiology physicians in Granbury?
Dr. O'Carroll's average Medicare payment per service is $11. 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. O'Carroll) 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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