Mackenzie Marky , AGACNP-BC
Nurse Practitioner โข Newark, DE
4755 Ogletown Stanton Rd Ste 1070
Newark, DE 197182200
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
-
Mackenzie Marky is listed in NPPES under Nurse Practitioner.
-
NPI assigned on December 15, 2022; this date does not establish years in practice.
-
Published CMS data list 494 Original Medicare Part B services in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Published rows only; this is not a quality measure.
-
Published Part B service records, 2024:
- 94726 โ Test to determine lung volumes using sensors: 184 service units.
- 99215 โ Established patient outpatient office visit: 162 service units.
- 99214 โ Established patient outpatient office visit: 63 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Units differ by code; these are not visits or a measure of quality.
CPTยฎ 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 5 records in the table ยท Guide: How to read Medicare Part B data
-
Published CMS data list 375 Medicare Part D prescriptions, including refills, in 2024.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Published rows only; this is not a quality measure.
-
Published Part D records, 2024:
- Warfarin Sodium โ 41 prescription fills, including refills.
- Hydralazine Hcl โ 38 prescription fills, including refills.
- Bumetanide โ 37 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 16 records in the table ยท Guide: How to read Medicare Part D prescriber data
-
More Medicare Part B services than 75% of clinicians listed under Nurse Practitioner in Newark, DE (2024, 58 clinicians with data). Median for this group: 240. Middle half: 57 to 490.
More Medicare Part B services than 60% of clinicians listed under Nurse Practitioner in Delaware (2024, 220 clinicians with data). Median for this group: 372. Middle half: 118 to 824.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2024. Billing and prescribing volume is not a quality rating.
-
Medicare Part B services went from 312 in 2023 to 494 in 2024.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023โ2024.
Practice Location & Contact Primary Location
4755 Ogletown Stanton Rd Ste 1070
Newark, DE 197182200
CMS Doctors and Clinicians lists 1 group name: Christiana Care Health Services Inc. 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
2022
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare patients
132 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 โ by Provider, 2024.
Medicare-allowed amount
About $27,984 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 โ by Provider and Service, 2024.
Paid by Medicare
About $21,872 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 โ by Provider and Service, 2024.
30-day fills
797 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
$16,185 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 โ by Provider and Drug, 2024.
Open Payments general payments, program year 2025
All general payments: $532.50 across 20 records.
By nature of payment
- Food and Beverage: $532.50 across 20 records.
Reporting-company totals (3 largest of 9)
- Abbott Laboratories: $190.90 across 9 records.
- ZOLL Services LLC (A/K/A ZOLL LifeCor Corp): $135.04 across 3 records.
- ABIOMED: $46.74 across 2 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
4 years (graduated 2022)
CMS Doctors and Clinicians data list 2022 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
2022
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, โDoes your provider accept Medicare as full payment?โ
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)
Mackenzie Marky 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 Mackenzie Marky 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 Newark and Delaware
Billing and prescribing volume is not a quality rating.
Medicare Part B services
More Medicare Part B services than 75% of clinicians listed under Nurse Practitioner in Newark, DE (2024, 58 clinicians with data). Median for this group: 240. Middle half: 57 to 490.
More Medicare Part B services than 60% of clinicians listed under Nurse Practitioner in Delaware (2024, 220 clinicians with data). Median for this group: 372. Middle half: 118 to 824.
Medicare-allowed amount
A higher Medicare-allowed amount than 65% of clinicians listed under Nurse Practitioner in Newark, DE (2024, 58 clinicians with data). Median for this group: $16,819. Middle half: $5,991 to $40,245.
Close to the middle for clinicians listed under Nurse Practitioner in Delaware (2024, 220 clinicians with data). Median for this group: $27,904. Middle half: $10,080 to $59,546.
Paid by Medicare
A higher Medicare payment amount than 70% of clinicians listed under Nurse Practitioner in Newark, DE (2024, 58 clinicians with data). Median for this group: $12,870. Middle half: $4,735 to $29,951.
Close to the middle for clinicians listed under Nurse Practitioner in Delaware (2024, 220 clinicians with data). Median for this group: $20,169. Middle half: $7,749 to $44,071.
Medicare Part D prescriptions
Close to the middle for clinicians listed under Nurse Practitioner in Newark, DE (2024, 55 clinicians with data). Median for this group: 316. Middle half: 108 to 705.
Close to the middle for clinicians listed under Nurse Practitioner in Delaware (2024, 238 clinicians with data). Median for this group: 427. Middle half: 115 to 1,455.
Part D drug cost
A lower Part D drug cost than 60% of clinicians listed under Nurse Practitioner in Newark, DE (2024, 55 clinicians with data). Median for this group: $29,716. Middle half: $2,472 to $219,981.
A lower Part D drug cost than 60% of clinicians listed under Nurse Practitioner in Delaware (2024, 238 clinicians with data). Median for this group: $41,667. Middle half: $2,414 to $216,454.
113 active clinicians are listed under Nurse Practitioner with a practice address in Newark, DE (547 in Delaware).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Newark
13.3% of these 113 clinicians have the CMS telehealth indicator.
59.3% of these 113 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.
-
Medicare Part B services
Medicare Part B services increased 58% from 312 in 2023 to 494 in 2024.
- 2023: 312
- 2024: 494
-
Medicare-allowed amount
Medicare-allowed amount increased 63% from $17,210 in 2023 to $27,984 in 2024.
- 2023: $17,210
- 2024: $27,984
-
Paid by Medicare
Paid by Medicare increased 61% from $13,606 in 2023 to $21,872 in 2024.
- 2023: $13,606
- 2024: $21,872
-
Medicare Part D prescriptions
Medicare Part D prescriptions increased 229% from 114 in 2023 to 375 in 2024.
- 2023: 114
- 2024: 375
-
30-day fills
30-day fills increased 304% from 197 in 2023 to 797 in 2024.
- 2023: 197
- 2024: 797
-
Part D drug cost
Part D drug cost increased 260% from $4,501 in 2023 to $16,185 in 2024.
- 2023: $4,501
- 2024: $16,185
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $943.39 in 2023 to $532.50 in 2025.
- 2023: $943.39
- 2024: $446.74
- 2025: $532.50
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 ยท 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 โ December 31, 2025): 20 records totaling $532.50.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) |
Food and Beverage
Cash or cash equivalent
|
LifeVest | General | $94.88 |
| Alnylam Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
|
โ | General | $38.85 |
| ABIOMED |
Food and Beverage
In-kind items and services
|
โ | General | $31.94 |
| Janssen Pharmaceuticals, Inc |
Food and Beverage
In-kind items and services
|
UPTRAVI | General | $29.16 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
THORATEC HEARTMATE 3 LVAS IMPLANT KIT | General | $26.97 |
| Medtronic, Inc. |
Food and Beverage
In-kind items and services
|
MYCARELINK | General | $26.96 |
| Kestra Medical Technology Services, Inc. |
Food and Beverage
Cash or cash equivalent
|
Assure WCD | General | $26.63 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
โ | General | $24.61 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
THORATEC HEARTMATE 3 LVAS IMPLANT KIT | General | $24.45 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
THORATEC HEARTMATE 3 LVAS IMPLANT KIT | General | $23.99 |
| Boehringer Ingelheim Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
JARDIANCE | General | $23.93 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
THORATEC HEARTMATE 3 LVAS IMPLANT KIT | General | $23.93 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
โ | General | $22.62 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
THORATEC HEARTMATE 3 LVAS IMPLANT KIT | General | $20.96 |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) |
Food and Beverage
Cash or cash equivalent
|
LifeVest | General | $20.17 |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) |
Food and Beverage
Cash or cash equivalent
|
LifeVest | General | $19.99 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
THORATEC HEARTMATE 3 LVAS IMPLANT KIT | General | $17.34 |
| ABIOMED |
Food and Beverage
In-kind items and services
|
โ | General | $14.80 |
| HEARTFLOW, INC. |
Food and Beverage
Cash or cash equivalent
|
FFRct | General | $14.29 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
|
THORATEC HEARTMATE 3 LVAS IMPLANT KIT | General | $6.03 |
Source: CMS Open Payments, program year 2025, released June 30, 2026.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2022โ2023 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 โ by Provider and Service data, 2023โ2024; 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 |
|---|---|---|---|---|
|
94726
Test to determine lung volumes using sensors
|
184 | 111 | $276.55 | $9.76 |
|
99215
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
|
162 | 95 | $329.52 | $118.61 |
|
99214
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
|
63 | 53 | $195.17 | $80.42 |
|
93750
Evaluation of lower heart chamber assist device
|
52 | 20 | $134.97 | $32.44 |
|
93010
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only
|
33 | 23 | $69.19 | $6.68 |
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 |
|---|---|---|---|---|---|
| Warfarin Sodium | Warfarin Sodium | 41 | 2,724 | $428.03 | โ |
| Hydralazine Hcl | Hydralazine Hcl | 38 | 2,460 | $940.64 | 16 |
| Bumetanide | Bumetanide | 37 | 1,882 | $2,617.16 | 20 |
| Spironolactone | Spironolactone | 36 | 2,700 | $327.64 | 21 |
| Potassium Chloride | Potassium Chloride | 35 | 1,645 | $1,379.54 | 21 |
| Metoprolol Succinate | Metoprolol Succinate | 33 | 2,550 | $479.58 | 18 |
| Digoxin | Digoxin | 26 | 1,626 | $223.03 | โ |
| Furosemide | Furosemide | 19 | 1,110 | $224.64 | 11 |
| Omeprazole | Omeprazole | 19 | 1,230 | $468.73 | โ |
| Carvedilol | Carvedilol | 15 | 1,050 | $112.70 | โ |
| Amiodarone Hcl | Amiodarone Hcl | 15 | 1,050 | $239.41 | โ |
| Atorvastatin Calcium | Atorvastatin Calcium | 14 | 1,260 | $237.52 | โ |
| Valsartan | Valsartan | 14 | 1,080 | $263.46 | โ |
| Klor-Con M20 | Potassium Chloride | 11 | 561 | $376.86 | โ |
| Metolazone | Metolazone | 11 | 167 | $97.48 | โ |
| Entresto | Sacubitril/Valsartan | 11 | 495 | $7,768.18 | โ |
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: 2023-02-09NUCC 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.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSPRACTITIONER - NURSE PRACTITIONER
I20230119001697
DE
5092186551
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
Christiana Care Health Services Inc
4755 Ogletown Stanton Rd, Newark, DE 197182200
Phone: 3027331663
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
Adult-Gerontology Acute Care Nurse Practitioner
Nurse Practitioner - Gerontology
Advanced Practice Nurse
Nurse Practitioner - Family
Family Nurse Practitioner
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Recorded as MACKENZIE MARKY, AGACNP-BC
NPI status registered as active in NPPES database
Registered at 4755 OGLETOWN STANTON RD STE 1070, NEWARK, DE 197182200 (Tel: 3027331663)
Registered at 4755 OGLETOWN STANTON RD STE 1070, NEWARK, DE 197182200 (Tel: 3027331663)
Recorded as MACKENZIE LEWIS, AGACNP-BC
Nurse Practitioner (license number reported to NPPES: DE LP-0010605)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Newark
- Kathleen Salati, NP
- Tamara Newell, MS
- Carol Gray, CFNP
- Jaynel Rhudd, NP-C
- Rebecca Mcmillin, MSN, FNP-BC
- Kawansi Newton-Freeman, FNP-C
Mailing Address
4755 Ogletown Stanton Rd Ste 1070
Newark, DE 197182200
Phone: 3027331663