Mary Shelkey , ARNP
Nurse Practitioner โข Everett, WA
3901 Hoyt Ave
Everett, WA 982014918
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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NPI assigned on December 20, 2006; this date does not establish years in practice.
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Published CMS data list 201 Original Medicare Part B services in 2023.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023. Published rows only; this is not a quality measure.
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Published Part B service records, 2023:
- 99348 โ Residence visit for established patient with low level of medical decision making, per day: 139 service units.
- 99349 โ Residence visit for established patient with moderate level of medical decision making, per day: 42 service units.
- 99347 โ Residence visit for established patient with straightforward medical decision making, per day: 20 service units.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2023. Units differ by code; these are not visits or a measure of quality.
CPTยฎ only copyright 2022 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2023). CPT notice
See the full table ยท Guide: How to read Medicare Part B data
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Published CMS data list 541 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.
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Published Part D records, 2024:
- Atorvastatin Calcium โ 48 prescription fills, including refills.
- Gabapentin โ 46 prescription fills, including refills.
- Levothyroxine Sodium โ 44 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 22 records in the table ยท Guide: How to read Medicare Part D prescriber data
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More Part D prescriptions than 65% of clinicians listed under Nurse Practitioner in Everett, WA (2024, 68 clinicians with data). Median for this group: 237. Middle half: 91 to 759.
More Part D prescriptions than 60% of clinicians listed under Nurse Practitioner in Washington (2024, 1,099 clinicians with data). Median for this group: 277. Middle half: 74 to 877.
Source: CMS, Medicare Part D Prescribers โ by Provider and Drug, 2024. Billing and prescribing volume is not a quality rating.
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Medicare Part B services went from 583 in 2021 to 201 in 2023.
Source: CMS, Medicare Physician & Other Practitioners โ by Provider and Service, 2021โ2023.
Practice Location & Contact Primary Location
3901 Hoyt Ave
Everett, WA 982014918
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $15,095 in 2023
The total amount Medicare approved for these services in 2023. 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, 2023.
Paid by Medicare
About $8,372 in 2023
The part of the Medicare-allowed amount that Medicare itself paid in 2023, 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, 2023.
30-day fills
572 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
$23,268 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.
Industry payments (Open Payments)
No Open Payments records are listed for this clinician for 2021โ2025.
NPI first issued
2006
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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)
Mary Shelkey 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 Mary Shelkey 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 Everett and Washington
Billing and prescribing volume is not a quality rating.
Medicare Part D prescriptions
More Part D prescriptions than 65% of clinicians listed under Nurse Practitioner in Everett, WA (2024, 68 clinicians with data). Median for this group: 237. Middle half: 91 to 759.
More Part D prescriptions than 60% of clinicians listed under Nurse Practitioner in Washington (2024, 1,099 clinicians with data). Median for this group: 277. Middle half: 74 to 877.
Part D drug cost
A higher Part D drug cost than 60% of clinicians listed under Nurse Practitioner in Everett, WA (2024, 68 clinicians with data). Median for this group: $8,678. Middle half: $1,067 to $100,371.
Close to the middle for clinicians listed under Nurse Practitioner in Washington (2024, 1,099 clinicians with data). Median for this group: $11,694. Middle half: $1,114 to $110,470.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Mary Shelkey are from 2023.
119 active clinicians are listed under Nurse Practitioner with a practice address in Everett, WA (2,310 in Washington).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Everett
21% of these 119 clinicians have the CMS telehealth indicator.
63% of these 119 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 66% from 583 in 2021 to 201 in 2023.
- 2021: 583
- 2022: 916
- 2023: 201
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Medicare-allowed amount
Medicare-allowed amount decreased 72% from $54,162 in 2021 to $15,095 in 2023.
- 2021: $54,162
- 2022: $78,234
- 2023: $15,095
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Paid by Medicare
Paid by Medicare decreased 80% from $42,621 in 2021 to $8,372 in 2023.
- 2021: $42,621
- 2022: $52,548
- 2023: $8,372
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 902% from 54 in 2020 to 541 in 2024.
- 2020: 54
- 2021: 1,206
- 2022: 5,616
- 2023: 5,605
- 2024: 541
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30-day fills
30-day fills increased 959% from 54 in 2020 to 572 in 2024.
- 2020: 54
- 2021: 1,245
- 2022: 5,825
- 2023: 5,781
- 2024: 572
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Part D drug cost
Part D drug cost increased 582% from $3,413 in 2020 to $23,268 in 2024.
- 2020: $3,413
- 2021: $31,037
- 2022: $212,771
- 2023: $246,090
- 2024: $23,268
Sources: CMS Medicare Physician & Other Practitioners (2023), CMS Medicare Part D Prescribers (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo ยท Report an error.
Performed Procedures & Service Volume
CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2020โ2022 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, 2021โ2023; 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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99348
Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes
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139 | 77 | $130.44 | $68.59 |
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99349
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes
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42 | 34 | $183.57 | $113.53 |
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99347
Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes
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20 | 18 | $66.00 | $39.63 |
Source: CMS Part B by Provider and Service, 2023; 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 |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 48 | 1,533 | $569.83 | 14 |
| Gabapentin | Gabapentin | 46 | 1,295 | $619.25 | โ |
| Levothyroxine Sodium | Levothyroxine Sodium | 44 | 1,334 | $456.27 | 12 |
| Lisinopril | Lisinopril | 38 | 1,088 | $353.78 | โ |
| Mirtazapine | Mirtazapine | 34 | 920 | $483.95 | โ |
| Escitalopram Oxalate | Escitalopram Oxalate | 32 | 920 | $436.20 | โ |
| Amlodipine Besylate | Amlodipine Besylate | 31 | 878 | $256.93 | โ |
| Metoprolol Succinate | Metoprolol Succinate | 29 | 834 | $539.82 | โ |
| Eliquis | Apixaban | 28 | 828 | $16,903.23 | โ |
| Furosemide | Furosemide | 25 | 1,040 | $187.66 | โ |
| Potassium Chloride | Potassium Chloride | 23 | 948 | $433.22 | โ |
| Quetiapine Fumarate | Quetiapine Fumarate | 21 | 521 | $332.27 | โ |
| Sertraline Hcl | Sertraline Hcl | 18 | 646 | $151.93 | โ |
| Memantine Hcl | Memantine Hcl | 17 | 498 | $318.34 | โ |
| Carvedilol | Carvedilol | 16 | 453 | $67.38 | โ |
| Simvastatin | Simvastatin | 15 | 442 | $252.74 | โ |
| Omeprazole | Omeprazole | 14 | 416 | $95.00 | โ |
| Trazodone Hcl | Trazodone Hcl | 14 | 397 | $85.93 | โ |
| Tizanidine Hcl | Tizanidine Hcl | 13 | 364 | $71.64 | โ |
| Montelukast Sodium | Montelukast Sodium | 12 | 359 | $83.19 | โ |
| Pantoprazole Sodium | Pantoprazole Sodium | 12 | 342 | $204.27 | โ |
| Levetiracetam | Levetiracetam | 11 | 324 | $364.90 | 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: 2026-07-09NUCC 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
I20040302001004
WA
7416844691
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Medicine (M.D.)
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Ophthalmology - Retina Specialist
Doctor of Medicine (M.D.)
Psychiatry & Neurology - Neurology
Doctor of Osteopathic Medicine (D.O.)
Internal Medicine - Hematology & Oncology
Nurse Practitioner
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 7600 EVERGREEN WAY, EVERETT, WA 982036421 (Tel: 2068605414)
Registered at 3901 HOYT AVE, EVERETT, WA 982014918 (Tel: 4253041144)
Registered at PO BOX 5127, EVERETT, WA 982065127 (Tel: 2068605414)
NPI status registered as active in NPPES database
Registered at 11820 NORTHUP WAY, SUITE E226, BELLEVUE, WA 980051946 (Tel: 2065526992)
Registered at 11820 NORTHUP WAY, SUITE E226, BELLEVUE, WA 980051946 (Tel: 2065526992)
Recorded as MARY SHELKEY, ARNP
Nurse Practitioner (license number reported to NPPES: WA AP30005254)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Everett
- Yanqun Bu
- Carolyn Schwartz, APRN
- Alana Beck
- Dr. Michelle Percopo, DNP, NP-C
- Lauren Nguyen, NP-C
- Dana Jackson, ARNP
Mailing Address
7600 Evergreen Way
Everett, WA 982036421
Phone: 2068605414