Maryanne Miller, MD
NPI 1275500613 · Internal Medicine Physician · Wheaton, IL
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maryanne Miller, MD is a Internal Medicine Physician provider in Wheaton, IL (NPI 1275500613).
Provider details
- NPI number
- 1275500613
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036.098472 (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 tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
223 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 93 | $80 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 68 | $120 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 45 | $115 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 17 | $175 |
Typical Medicare-allowed amounts for these services range $80–$175 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote 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.
Practice location
Mailing address
Additional practice locations (4)
- 875 S. Route 31Crystal Lake, IL 60014-8190Phone: (779) 220-5500
- 1045 W Stephenson StFreeport, IL 61032-4864Phone: (815) 599-6000Fax: (815) 599-7974
- 1045 W Stephenson StFreeport, IL 61032-4864Phone: (815) 599-6000Fax: (815) 599-7974
- 901 Grant StHarvard, IL 60033-1821Phone: (815) 943-2693
Registry dates
- Enumerated
- 2006-03-03
- Last updated
- 2026-04-01
- Certified
- 2026-04-01
Frequently asked questions
- What is Maryanne Miller's NPI number?
- Maryanne Miller's National Provider Identifier (NPI) is 1275500613, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maryanne Miller's specialty?
- Maryanne Miller is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maryanne Miller located?
- Maryanne Miller's practice location on file with NPPES is 1800 N Main St, Wheaton, IL 60187-3112.
- What is Maryanne Miller's phone number?
- The practice phone number listed in the NPPES registry for Maryanne Miller is (630) 665-6200.
- Does Maryanne Miller accept Medicare?
- Maryanne Miller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maryanne Miller's NPI active?
- Yes — Maryanne Miller's NPI (1275500613) is active in the NPPES registry as of the last update on 2026-04-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.