Crystal Kostelyk, ARNP
NPI 1376916510 · Family Nurse Practitioner · Kirkland, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Crystal Kostelyk, ARNP is a Family Nurse Practitioner provider in Kirkland, WA (NPI 1376916510).
Provider details
- NPI number
- 1376916510
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- AP61455830 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
155 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 44 | $115 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 35 | $15 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 25 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 20 | $85 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 19 | $168 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Amlodipine Besylate | 22 |
| Levothyroxine Sodium | 16 |
| Lisinopril | 15 |
| Gabapentin | 13 |
| Losartan Potassium | 13 |
| Atorvastatin Calcium | 11 |
| Fluticasone Propionate | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-11-10
- Last updated
- 2025-03-11
- Certified
- 2025-03-11
Frequently asked questions
- What is Crystal Kostelyk's NPI number?
- Crystal Kostelyk's National Provider Identifier (NPI) is 1376916510, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Kostelyk's specialty?
- Crystal Kostelyk is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Crystal Kostelyk located?
- Crystal Kostelyk's practice location on file with NPPES is 11417 124th Ave Ne Ste 100, Kirkland, WA 98033-4677.
- What is Crystal Kostelyk's phone number?
- The practice phone number listed in the NPPES registry for Crystal Kostelyk is (800) 640-3451.
- Does Crystal Kostelyk accept Medicare?
- Crystal Kostelyk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Crystal Kostelyk's NPI active?
- Yes — Crystal Kostelyk's NPI (1376916510) is active in the NPPES registry as of the last update on 2025-03-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.