Natalie Kostinsky, M.D.
NPI 1205835881 · Family Medicine Physician · Crystal Lake, IL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Natalie Kostinsky, M.D. is a Family Medicine Physician provider in Crystal Lake, IL (NPI 1205835881).
Provider details
- NPI number
- 1205835881
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036093665 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
6 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
591 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 153 | $97 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 124 | $135 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 113 | $88 |
| Amplifed Dna Or Rna Probe Detection of Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19) Antigen87635 | 36 | $50 |
| Detection Test By Nucleic Acid for Multiple Types Influenza Virus87502 | 28 | $94 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 148 | 145 |
| Azithromycin | 113 | 111 |
| Ciprofloxacin Hcl | 46 | 44 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 45 | 43 |
| Amoxicillin | 36 | 36 |
| Cephalexin | 35 | 34 |
| Doxycycline Hyclate | 28 | 28 |
| Albuterol Sulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$81 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (5)
- 934 Center StElgin, IL 60120-2125Phone: (847) 429-8750Fax: (847) 429-8978
- 10350 Haligus RdHuntley, IL 60142-9545Phone: (815) 338-6600Fax: (847) 802-7112
- 2507 N Richmond RdMchenry, IL 60051-5407Phone: (815) 338-6600Fax: (815) 385-3255
- 486 Randall Rd Unit BSouth Elgin, IL 60177-3354Phone: (224) 783-5000
- 1925 Huntley RdWest Dundee, IL 60118-9301Phone: (815) 338-6600Fax: (847) 426-5162
Registry dates
- Enumerated
- 2005-07-18
- Last updated
- 2025-01-09
- Certified
- 2025-01-09
Frequently asked questions
- What is Natalie Kostinsky's NPI number?
- Natalie Kostinsky's National Provider Identifier (NPI) is 1205835881, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Natalie Kostinsky's specialty?
- Natalie Kostinsky is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Natalie Kostinsky located?
- Natalie Kostinsky's practice location on file with NPPES is 360 Station Dr, Crystal Lake, IL 60014.
- What is Natalie Kostinsky's phone number?
- The practice phone number listed in the NPPES registry for Natalie Kostinsky is (815) 338-6600.
- Does Natalie Kostinsky accept Medicare?
- Natalie Kostinsky is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Natalie Kostinsky's NPI active?
- Yes — Natalie Kostinsky's NPI (1205835881) is active in the NPPES registry as of the last update on 2025-01-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.