Physician Profile
Based in Jacksonville, FL, Zachary J. Fleissner, DO is listed in the NPI registry under anesthesiology. Zachary graduated from Lake Erie College of Osteopathic Medicine, Erie in 2019. According to Medicare claims data, Zachary cared for 324 Medicare patients across 333 services. The services billed most often include ultrasonic guidance for blood vessel access, insertion of artery tube for blood sampling or infusion through skin, and anesthesia for lens surgery.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
4500 SAN PABLO RD S
Jacksonville, FL 32224
Within Anesthesiology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Anesthesia complications
Back & spine
Chronic pain
Facial & jaw pain
General pain
Head & facial pain
Headaches
Joint pain
Mental health
Muscle pain
Musculoskeletal pain
Nerve pain
Pelvic pain
Post-surgery recovery
Sedation & anesthesia
Spine pain
Ablation
Head & facial procedures
Implants & devices
Infusion therapies
Infusion therapy
Joint injections
Muscle injections
Nerve blocks
Nerve injections
Nerve procedures
Pain relief procedures
Regional anesthesia
Sedation
Sedation & anesthesia
Spine injections
Spine procedures
333 services · 324 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of artery tube for blood sampling or infusion through skin | Procedure | 36620 |
43 | More often than most peers in Anesthesiology |
| Insertion of non-tunneled central venous tube for infusion (5 years or older) | Procedure | 36556 |
19 | As often as other peers in Anesthesiology |
| Ultrasonic guidance for blood vessel access | Imaging | 76937 |
52 | More than most peers in Anesthesiology |
| Anesthesia for lens surgery | Anaesthesia | 00142 |
29 | As often as other peers in Anesthesiology |
| Anesthesia for extensive surgery on spine | Anaesthesia | 00670 |
27 | More often than most peers in Anesthesiology |
| Anesthesia for other closed procedure on chest | Anaesthesia | 00520 |
24 | More often than most peers in Anesthesiology |
| Anesthesia for other procedure on eye | Anaesthesia | 00140 |
23 | As often as other peers in Anesthesiology |
| Anesthesia for x-ray or radiation therapy | Anaesthesia | 01922 |
20 | More often than most peers in Anesthesiology |
| Anesthesia for procedure on upper urinary tubes or removal of kidney for transplant | Anaesthesia | 00862 |
15 | More often than most peers in Anesthesiology |
| Anesthesia for fragmenting, manipulation and/or removal of kidney stone including use of an endoscope | Anaesthesia | 00918 |
13 | As often as other peers in Anesthesiology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Fleissner is an anesthesiologist in Jacksonville, FL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Anesthesiology”.
NPI registry
Dr. Fleissner is listed at 4500 San Pablo Rd S, Jacksonville, FL 32224. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (904) 953-2000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Fleissner's National Provider Identifier is 1033773494. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Fleissner attended Lake Erie College of Osteopathic Medicine, Erie, graduating in 2019. This comes from the CMS National Downloadable File.
CMS public data
Dr. Fleissner has 7 years experience. Calculated from a graduation year of 2019, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Fleissner performs procedures including insertion of artery tube for blood sampling or infusion through skin and insertion of non-tunneled central venous tube for infusion; reads or performs imaging such as ultrasonic guidance for blood vessel access; provides treatments such as anesthesia for lens surgery and anesthesia for extensive surgery on spine. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Fleissner. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.