Maria Wolter, APN
NPI 1215523345 · Nurse Practitioner · Oak Brook, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Wolter, APN is a Nurse Practitioner provider in Oak Brook, IL (NPI 1215523345).
Provider details
- NPI number
- 1215523345
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APN
- Sex
- Female
- Sole proprietor
- No
- License
- 041.422557 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
5 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
486 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 | 248 | $110 |
| Insulin Measurement, Total83525 | 50 | $11 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 42 | $9 |
| Hemoglobin A1c Level83036 | 41 | $10 |
| Vitamin D-3 Level82306 | 31 | $29 |
| Cyanocobalamin (vitamin B-12) Level82607 | 31 | $15 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total) |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hclbrand: Metformin Hcl Er | 134 | 47 |
| Tirzepatidebrand: Mounjaro | 110 | 22 |
| Semaglutidebrand: Ozempic | 104 | 26 |
| Topiramate | 47 | 18 |
| Dulaglutidebrand: Trulicity | 28 | — |
| Naltrexone Hcl | 18 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,617 across 130 records (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 (1)
- 2850 W 95th StEvergreen Park, IL 60805-2735Phone: (708) 229-4041
Registry dates
- Enumerated
- 2020-12-13
- Last updated
- 2023-08-18
- Certified
- 2023-08-18
Frequently asked questions
- What is Maria Wolter's NPI number?
- Maria Wolter's National Provider Identifier (NPI) is 1215523345, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Wolter's specialty?
- Maria Wolter is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maria Wolter located?
- Maria Wolter's practice location on file with NPPES is 3011 Butterfield Rd Ste 240, Oak Brook, IL 60523-3132.
- What is Maria Wolter's phone number?
- The practice phone number listed in the NPPES registry for Maria Wolter is (630) 348-3840.
- Does Maria Wolter accept Medicare?
- Maria Wolter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Wolter's NPI active?
- Yes — Maria Wolter's NPI (1215523345) is active in the NPPES registry as of the last update on 2023-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.