Sharon Spak-Schreiner, M.D.
NPI 1003054289 · Internal Medicine Physician · Arlington Heights, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sharon Spak-Schreiner, M.D. is a Internal Medicine Physician provider in Arlington Heights, IL (NPI 1003054289).
Provider details
- NPI number
- 1003054289
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 036075052 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 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
287 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 98 | $94 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 77 | $137 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 73 | $131 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 23 | $15 |
| Transitional Care Management Services for Problem of at Least Moderate Complexity99495 | 16 | $205 |
Typical Medicare-allowed amounts for these services range $15–$205 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 252 | 87 |
| Levothyroxine Sodium | 156 | 51 |
| Losartan Potassium | 113 | 37 |
| Amlodipine Besylate | 77 | 28 |
| Hydrochlorothiazide | 75 | 27 |
| Simvastatin | 74 | 23 |
| Alendronate Sodium | 70 | 23 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-01-27
- Last updated
- 2021-05-11
- Certified
- 2021-05-11
Frequently asked questions
- What is Sharon Spak-Schreiner's NPI number?
- Sharon Spak-Schreiner's National Provider Identifier (NPI) is 1003054289, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sharon Spak-Schreiner's specialty?
- Sharon Spak-Schreiner is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sharon Spak-Schreiner located?
- Sharon Spak-Schreiner's practice location on file with NPPES is 1051 W Rand Rd # 110, Arlington Heights, IL 60004-2315.
- What is Sharon Spak-Schreiner's phone number?
- The practice phone number listed in the NPPES registry for Sharon Spak-Schreiner is (847) 618-9292.
- Does Sharon Spak-Schreiner accept Medicare?
- Sharon Spak-Schreiner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sharon Spak-Schreiner's NPI active?
- Yes — Sharon Spak-Schreiner's NPI (1003054289) is active in the NPPES registry as of the last update on 2021-05-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.