Ann Hagedorn, MD
NPI 1245237825 · Internal Medicine Physician · Greenville, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann Hagedorn, MD is a Internal Medicine Physician provider in Greenville, IL (NPI 1245237825).
Provider details
- NPI number
- 1245237825
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036106952 (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
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
1,946 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 | 1,108 | $78 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 278 | $117 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 262 | $170 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 234 | $112 |
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 27 | $104 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 166 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,738 | 148 |
| Amlodipine Besylate | 888 | 95 |
| Potassium Chloride | 613 | 77 |
| Tamsulosin Hcl | 564 | 61 |
| Apixabanbrand: Eliquis | 554 | 56 |
| Lisinopril | 483 | 57 |
| Furosemide | 475 |
Practice location
Mailing address
Additional practice locations (1)
- 4550 Memorial DrSte 340Belleville, IL 62226-5372Phone: (618) 257-6200Fax: (618) 257-6679
Registry dates
- Enumerated
- 2005-06-28
- Last updated
- 2019-05-10
Frequently asked questions
- What is Ann Hagedorn's NPI number?
- Ann Hagedorn's National Provider Identifier (NPI) is 1245237825, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Hagedorn's specialty?
- Ann Hagedorn is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ann Hagedorn located?
- Ann Hagedorn's practice location on file with NPPES is 200 Health Care Dr, Greenville, IL 62246-1154.
- What is Ann Hagedorn's phone number?
- The practice phone number listed in the NPPES registry for Ann Hagedorn is (618) 664-1230.
- Does Ann Hagedorn accept Medicare?
- Ann Hagedorn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann Hagedorn's NPI active?
- Yes — Ann Hagedorn's NPI (1245237825) is active in the NPPES registry as of the last update on 2019-05-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.