Quick answers
- Does Mohamad Chmayssani accept Medicare assignment?
- Yes. Medicare's clinician data says Mohamad Chmayssani 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 Mohamad Chmayssani see?
- In 2024, CMS data shows 268 Original Medicare patients and 835 services for Mohamad Chmayssani. This counts Original Medicare only and measures volume, not quality.
- What is Mohamad Chmayssani's NPI number?
- 1780847244. 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 Mohamad Chmayssani, 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 | 268 |
|---|---|
| Services billed to Medicare | 835 |
| Different services or procedures | 17 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Critical care, first 30-74 minutes (99291)616 services
- Critical care, each additional 30 minutes (99292)69 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)50 services
- Emergent insertion of breathing tube into windpipe using an endoscope (31500)24 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)13 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%
- Stroke or mini-stroke75%
- Ischemic heart disease50%
- Arthritis48%
- Diabetes44%
Hospitals where Mohamad Chmayssani works
Medicare's Facility Affiliation Data lists Mohamad Chmayssani 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.
- Baptist Health Medical Center - JacksonvilleJacksonville, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100088
- Baptist Medical Center - NassauFernandina Beach, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100140
- Baptist Medical Center BeachesJacksonville Beach, FL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 100117
- SGMC HealthValdosta, GA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 110122
- Southeast Georgia Health System- Brunswick CampusBrunswick, GA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 110025
Practice locations
Addresses where Mohamad Chmayssani is enrolled with Medicare (CMS data updated October 2, 2026).
- 1370 13th Ave SJacksonville, FL 32250 (904) 388‑6518
Group practices
Medicare enrollment lists Mohamad Chmayssani as a member of this group (CMS data updated October 2, 2026).
- Lyerly Baptist Inc72 clinicians in the group
Specialties
- Neurologyprimary
Other neurologists in Jacksonville
Clinicians with the same Medicare primary specialty in Jacksonville, FL — not a recommendation.
Other clinicians in Lyerly Baptist Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2005 (21 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780847244 |
| 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