David M Mccaskill , FNP-C, ACNP
Nurse Practitioner • Tyler, TX
800 E Dawson St
Tyler, TX 757012036
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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David Mccaskill is listed in NPPES under Nurse Practitioner.
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NPI assigned on August 19, 2005; this date does not establish years in practice.
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Published CMS data list 266 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Published rows only; this is not a quality measure.
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Published Part B service records, 2024:
- 99214 — Established patient outpatient office visit: 133 service units.
- 93016 — Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician: 45 service units.
- 99223 — Initial hospital care with moderate level of medical decision making: 29 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2023 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2024). CPT notice
See all 6 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 990 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Published rows only; this is not a quality measure.
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Published Part D records, 2024:
- Entresto (Sacubitril/Valsartan) — 120 prescription fills, including refills.
- Bumetanide — 112 prescription fills, including refills.
- Metoprolol Succinate — 93 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 23 records in the table · Guide: How to read Medicare Part D prescriber data
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Close to the middle for Medicare Part B services among clinicians listed under Nurse Practitioner in Tyler, TX (2024, 89 clinicians with data). Median for this group: 377. Middle half: 87 to 662.
Close to the middle for Medicare Part B services among clinicians listed under Nurse Practitioner in Texas (2024, 1,852 clinicians with data). Median for this group: 219. Middle half: 83 to 548.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 356 in 2020 to 266 in 2024.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020–2024.
Practice Location & Contact Primary Location
800 E Dawson St
Tyler, TX 757012036
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
NPPES lists 2 distinct additional practice-address records in Tyler, TX. See the list
Source: CMS NPPES NPI Registry, practice location records; release date unavailable.
CMS Doctors and Clinicians lists 1 group name: Christus Trinity Clinic. See the list
Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.
Listings do not confirm current availability, employment or a shared ownership network.
Medicare Profile & Education
Source: CMS Doctors and Clinicians National Downloadable File
2000
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
159 people with Original Medicare in 2024
It gives a sense of how many people with Medicare this clinician treated that year.
Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.
Medicare-allowed amount
About $20,823 in 2024
The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
Paid by Medicare
About $15,845 in 2024
The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.
30-day fills
2,206 standardized 30-day fills in 2024
CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.
What this does not show: 30-day fills
It is not a count of patients and not a measure of quality.
Part D drug cost
$243,960 in 2024
The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
What this does not show: Part D drug cost
A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $13,455.70 across 64 records.
By nature of payment (3 largest of 5)
- Honoraria: $4,750.00 across 4 records.
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program: $3,800.00 across 2 records.
- Food and Beverage: $2,570.59 across 47 records.
Reporting-company totals (3 largest of 10)
- Impulse Dynamics (USA) Inc.: $6,640.27 across 20 records.
- Pfizer Inc.: $3,867.13 across 13 records.
- CVRx, Inc.: $1,760.68 across 13 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).
Years since graduation
26 years (graduated 2000)
CMS Doctors and Clinicians data list 2000 as the year this clinician finished professional school.
It tells you roughly how long ago the clinician finished school.
What this does not show: Years since graduation
It is not the number of years in practice, and more years does not mean better care.
Source: CMS Doctors and Clinicians National Downloadable File.
NPI first issued
2005
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Accepts Medicare assignment
CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.
With Original Medicare, you usually pay only your deductible and coinsurance, and the office sends the claim to Medicare for you.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
David Mccaskill has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists David Mccaskill as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Tyler and Texas
Billing and prescribing volume is not a quality rating.
Medicare Part B services
Close to the middle for clinicians listed under Nurse Practitioner in Tyler, TX (2024, 89 clinicians with data). Median for this group: 377. Middle half: 87 to 662.
Close to the middle for clinicians listed under Nurse Practitioner in Texas (2024, 1,852 clinicians with data). Median for this group: 219. Middle half: 83 to 548.
Medicare-allowed amount
Close to the middle for clinicians listed under Nurse Practitioner in Tyler, TX (2024, 89 clinicians with data). Median for this group: $22,550. Middle half: $5,744 to $47,311.
Close to the middle for clinicians listed under Nurse Practitioner in Texas (2024, 1,852 clinicians with data). Median for this group: $17,068. Middle half: $6,758 to $39,305.
Paid by Medicare
Close to the middle for clinicians listed under Nurse Practitioner in Tyler, TX (2024, 89 clinicians with data). Median for this group: $16,503. Middle half: $4,479 to $34,335.
Close to the middle for clinicians listed under Nurse Practitioner in Texas (2024, 1,852 clinicians with data). Median for this group: $12,638. Middle half: $4,849 to $28,908.
Medicare Part D prescriptions
More Part D prescriptions than 60% of clinicians listed under Nurse Practitioner in Tyler, TX (2024, 79 clinicians with data). Median for this group: 540. Middle half: 148 to 1,714.
More Part D prescriptions than 70% of clinicians listed under Nurse Practitioner in Texas (2024, 2,095 clinicians with data). Median for this group: 274. Middle half: 77 to 1,097.
Part D drug cost
A higher Part D drug cost than 70% of clinicians listed under Nurse Practitioner in Tyler, TX (2024, 79 clinicians with data). Median for this group: $35,748. Middle half: $2,220 to $246,750.
A higher Part D drug cost than 80% of clinicians listed under Nurse Practitioner in Texas (2024, 2,095 clinicians with data). Median for this group: $12,936. Middle half: $998 to $118,416.
147 active clinicians are listed under Nurse Practitioner with a practice address in Tyler, TX (4,835 in Texas).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Tyler
11.6% of these 147 clinicians have the CMS telehealth indicator.
77.6% of these 147 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 25% from 356 in 2020 to 266 in 2024.
- 2020: 356
- 2021: 335
- 2022: 318
- 2023: 253
- 2024: 266
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Medicare-allowed amount
Medicare-allowed amount decreased 26% from $28,042 in 2020 to $20,823 in 2024.
- 2020: $28,042
- 2021: $28,369
- 2022: $25,681
- 2023: $22,239
- 2024: $20,823
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Paid by Medicare
Paid by Medicare decreased 25% from $21,005 in 2020 to $15,845 in 2024.
- 2020: $21,005
- 2021: $21,469
- 2022: $19,761
- 2023: $17,337
- 2024: $15,845
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Medicare Part D prescriptions
Medicare Part D prescriptions stayed about the same: 1,062 in 2020 and 990 in 2024.
- 2020: 1,062
- 2021: 953
- 2022: 1,091
- 2023: 917
- 2024: 990
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30-day fills
30-day fills increased 31% from 1,681 in 2020 to 2,206 in 2024.
- 2020: 1,681
- 2021: 1,582
- 2022: 1,842
- 2023: 1,557
- 2024: 2,206
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Part D drug cost
Part D drug cost increased 51% from $161,329 in 2020 to $243,960 in 2024.
- 2020: $161,329
- 2021: $164,919
- 2022: $177,134
- 2023: $194,295
- 2024: $243,960
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Industry payments (Open Payments)
Industry payments (Open Payments) increased 1214% from $1,023.86 in 2021 to $13,455.70 in 2025.
- 2021: $1,023.86
- 2022: $2,279.12
- 2023: $4,082.57
- 2024: $5,695.02
- 2025: $13,455.70
Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2025 (payments made January 1 – December 31, 2025): 64 records totaling $13,455.70.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Pfizer Inc. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
ELIQUIS | General | $3,100.00 |
| Impulse Dynamics (USA) Inc. |
Honoraria
Cash or cash equivalent
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Optimizer | General | $2,500.00 |
| CVRx, Inc. |
Travel and Lodging
Cash or cash equivalent
|
Barostim Neo System | General | $799.97 |
| Impulse Dynamics (USA) Inc. |
Honoraria
Cash or cash equivalent
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Optimizer | General | $750.00 |
| Impulse Dynamics (USA) Inc. |
Honoraria
Cash or cash equivalent
|
Optimizer | General | $750.00 |
| Impulse Dynamics (USA) Inc. |
Honoraria
Cash or cash equivalent
|
Optimizer | General | $750.00 |
| Pfizer Inc. |
Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
Cash or cash equivalent
|
ELIQUIS | General | $700.00 |
| Impulse Dynamics (USA) Inc. |
Travel and Lodging
Cash or cash equivalent
|
Optimizer | General | $479.96 |
| CVRx, Inc. |
Travel and Lodging
Cash or cash equivalent
|
Barostim Neo System | General | $350.73 |
| Impulse Dynamics (USA) Inc. |
Travel and Lodging
Cash or cash equivalent
|
Optimizer | General | $255.72 |
| Impulse Dynamics (USA) Inc. |
Travel and Lodging
Cash or cash equivalent
|
Optimizer | General | $208.29 |
| CVRx, Inc. |
Food and Beverage
Cash or cash equivalent
|
Barostim Neo System | General | $191.59 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
CARDIOMEMS | General | $182.18 |
| Impulse Dynamics (USA) Inc. |
Food and Beverage
Cash or cash equivalent
|
Optimizer | General | $169.13 |
| Impulse Dynamics (USA) Inc. |
Food and Beverage
Cash or cash equivalent
|
Optimizer | General | $151.45 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
CARDIOMEMS | General | $139.00 |
| CVRx, Inc. |
Food and Beverage
Cash or cash equivalent
|
Barostim Neo System | General | $127.22 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
CARDIOMEMS | General | $125.77 |
| Bristol Myers Squibb Company |
Food and Beverage
Cash or cash equivalent
|
CAMZYOS | General | $122.15 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
— | General | $118.77 |
| Alnylam Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
AMVUTTRA | General | $107.38 |
| Impulse Dynamics (USA) Inc. |
Food and Beverage
Cash or cash equivalent
|
Optimizer | General | $101.88 |
| Impulse Dynamics (USA) Inc. |
Food and Beverage
Cash or cash equivalent
|
Optimizer | General | $89.18 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
CARDIOMEMS | General | $76.66 |
| CVRx, Inc. |
Food and Beverage
Cash or cash equivalent
|
Barostim Neo System | General | $73.48 |
(top 25 shown)
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
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133 | 65 | $289.00 | $80.81 |
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93016
Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician
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45 | 45 | $49.00 | $17.43 |
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99223
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes
|
29 | 29 | $441.00 | $144.01 |
|
99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
|
26 | 23 | $406.00 | $120.36 |
|
99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
|
19 | 18 | $204.00 | $54.99 |
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99238
Hospital discharge day management, 30 minutes or less
|
14 | 14 | $160.00 | $67.20 |
Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Medicare Part D Prescribing Profile & Medications
Medicare Part D prescriptions filled, including refills, in 2024.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Entresto | Sacubitril/Valsartan | 120 | 6,639 | $126,839.13 | 38 |
| Bumetanide | Bumetanide | 112 | 7,665 | $4,176.61 | 43 |
| Metoprolol Succinate | Metoprolol Succinate | 93 | 7,240 | $1,526.18 | 42 |
| Carvedilol | Carvedilol | 83 | 6,324 | $552.87 | 40 |
| Spironolactone | Spironolactone | 62 | 5,310 | $418.42 | 24 |
| Furosemide | Furosemide | 59 | 4,171 | $482.38 | 26 |
| Potassium Chloride | Potassium Chloride | 55 | 4,080 | $936.01 | 23 |
| Jardiance | Empagliflozin | 45 | 2,280 | $43,681.91 | 17 |
| Isosorbide Mononitrate Er | Isosorbide Mononitrate | 39 | 2,520 | $540.39 | 13 |
| Farxiga | Dapagliflozin Propanediol | 39 | 2,395 | $41,728.15 | 19 |
| Torsemide | Torsemide | 30 | 1,686 | $1,478.71 | — |
| Losartan Potassium | Losartan Potassium | 26 | 1,696 | $183.49 | 12 |
| Amlodipine Besylate | Amlodipine Besylate | 25 | 1,650 | $116.76 | 12 |
| Atorvastatin Calcium | Atorvastatin Calcium | 24 | 1,980 | $123.44 | — |
| Amiodarone Hcl | Amiodarone Hcl | 24 | 1,432 | $446.80 | 13 |
| Metolazone | Metolazone | 24 | 1,323 | $420.41 | — |
| Eliquis | Apixaban | 23 | 750 | $14,077.98 | 12 |
| Hydralazine Hcl | Hydralazine Hcl | 20 | 1,290 | $85.54 | — |
| Lisinopril | Lisinopril | 19 | 1,485 | $122.60 | 11 |
| Isosorbide Dinitrate | Isosorbide Dinitrate | 19 | 1,005 | $367.98 | — |
| Ranolazine Er | Ranolazine | 19 | 1,096 | $956.75 | 11 |
| Candesartan Cilexetil | Candesartan Cilexetil | 18 | 1,500 | $2,316.45 | — |
| Klor-Con 10 | Potassium Chloride | 12 | 358 | $2,381.12 | — |
Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2023-07-07NUCC Taxonomy Code: 363L00000X
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Additional State Medicaid & Healthcare Payer Identifiers
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20040614000582
TX
6507840162
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Medicare Group Practice Enrollments
Source: CMS Doctors and Clinicians National Downloadable File
Christus Trinity Clinic
18780 Interstate 20, Canton, TX 751033593
Phone: 9035674841
Christus Trinity Clinic
620 S Fleishel Ave, Tyler, TX 757012041
Phone: 9036064900
Christus Trinity Clinic
3203 S Main St, Lindale, TX 757717727
Phone: 9032664000
Christus Trinity Clinic
Po Box, Dallas, TX 752846098
Christus Trinity Clinic
313 W Parker St, Elkhart, TX 758397612
Phone: 9037645626
Christus Trinity Clinic
800 E Dawson St, Tyler, TX 757012036
Phone: 9035101186
Christus Trinity Clinic
630 S Fleishel Ave, Tyler, TX 757012041
Phone: 9036065560
Christus Trinity Clinic
1302 N Pacific St, Mineola, TX 757731022
Phone: 9035695383
Christus Trinity Clinic
3201 S Loop, Palestine, TX 758016901
Secondary Practice Locations
619 S Fleishel Ave Ste 101
Tyler, TX 757012004
Phone: 9036062296
619 S Fleishel Ave Ste 201
Tyler, TX 757012004
Phone: 9036062422
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Nurse Practitioner - Acute Care
Certified Nurse Practitioner
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 800 E DAWSON ST, TYLER, TX 757012036 (Tel: 9036066137)
NPI status registered as active in NPPES database
Registered at 703 S FLEISHEL AVE STE 4000, TYLER, TX 757012015 (Tel: 9033246400)
Registered at PO BOX 846098, DALLAS, TX 752846098 (Tel: 9033246400)
Recorded as DAVID MCCASKILL, FNP-C, ACNP
Nurse Practitioner (license number reported to NPPES: TX 568154)
NPI status registered as active in NPPES database
Registered at 703 S FLEISHEL AVE STE 4000, TYLER, TX 757012015 (Tel: 9033246400)
Registered at PO BOX 846098, DALLAS, TX 752846098 (Tel: 9033246400)
Recorded as DAVID MCCASKILL, FNP-C, ACNP
Nurse Practitioner (license number reported to NPPES: TX 568154)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Tyler
- Dr. Mary Mcinnis, DNP, APRN, ENP, FNP
- Kristen Edney, APRN
- Sommer Ledkins
- Kristina Johnson, NP
- Robert Fenton, FNP-C
- Justin Williams, NP
Mailing Address
Po Box 846098
Dallas, TX 752846098
Phone: 9033246400