Quick answers
- Does Louis A. Dieffenbach accept Medicare assignment?
- Yes. Medicare's clinician data says Louis A. Dieffenbach accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Louis A. Dieffenbach see?
- In 2024, CMS data shows 280 Original Medicare patients and 513 services for Louis A. Dieffenbach. This counts Original Medicare only and measures volume, not quality.
- What is Louis A. Dieffenbach's NPI number?
- 1699784587. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Louis A. Dieffenbach, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 280 |
|---|---|
| Services billed to Medicare | 513 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)222 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)113 services
- Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory (Q0091)101 services
- Urinalysis, manual test (81002)23 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)18 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis48%
- Ischemic heart disease36%
- Osteoporosis33%
- Anxiety32%
Hospitals where Louis A. Dieffenbach works
Medicare's Facility Affiliation Data lists Louis A. Dieffenbach at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- HCA Florida Oak Hill HospitalBrooksville, FL · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 100264
Practice locations
Addresses where Louis A. Dieffenbach is enrolled with Medicare (CMS data updated October 2, 2026).
- 13215 Spring Hill DrSpring Hill, FL 34609
- 13215 Springhill DrSpringhill, FL 34609
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Florida
Clinicians with the same Medicare primary specialty in Florida — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1699784587 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians