Quick answers
- Does Joseph L. Ernst accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph L. Ernst 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 Joseph L. Ernst see?
- In 2024, CMS data shows 158 Original Medicare patients and 243 services for Joseph L. Ernst. This counts Original Medicare only and measures volume, not quality.
- What is Joseph L. Ernst's NPI number?
- 1942332200. 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 Joseph L. Ernst, 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 | 158 |
|---|---|
| Services billed to Medicare | 243 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)102 services
- Dialysis services, 2-3 physician visits per month (20 years or older) (90961)33 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)27 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)25 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)23 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%
- Chronic kidney disease75%
- Heart failure68%
- Diabetes67%
- Ischemic heart disease65%
Hospitals where Joseph L. Ernst works
Medicare's Facility Affiliation Data lists Joseph L. Ernst 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.
- Ascension St Vincent's Clay CountyMiddleburg, FL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 100321
- Ascension St Vincent's RiversideJacksonville, FL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 100040
- Ascension St Vincent's SouthsideJacksonville, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100307
- Bacon County HospitalAlma, GA · Critical Access Hospital · Emergency services: not listed by Medicare · CCN 111327
- Baptist Health Medical Center - JacksonvilleJacksonville, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100088
Practice locations
Addresses where Joseph L. Ernst is enrolled with Medicare (CMS data updated October 2, 2026).
- 13715 Richmond Park Dr N, Unit 401Jacksonville, FL 32224 (410) 258‑6500
- 2 Shircliff WayJacksonville, FL 32204 (904) 389‑5333
- 2 Shircliff Way, Suite 415Jacksonville, FL 32204
- 2 Shircliff Way 700 Depaul Bldg, Nephrology Associates of NortheastJacksonville, FL 32204 (904) 389‑5333
- 551616 US Hwy 1Hilliard, FL 32046 (904) 398‑5333
Group practices
Medicare enrollment lists Joseph L. Ernst as a member of these groups (CMS data updated October 2, 2026).
- Vip Specialties of Florida28 clinicians in the group
- James D Baker III MD PA19 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Jacksonville
Clinicians with the same Medicare primary specialty in Jacksonville, FL — not a recommendation.
Other clinicians in Vip Specialties of Florida
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1942332200 |
| 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