Physician Profile
James A. Underwood, MD
Unclaimed ProfileAbout Dr. Underwood
James A. Underwood, MD is a healthcare provider in Jacksonville, FL specializing in physical medicine & rehabilitation. James trained at Georgetown University School of Medicine, graduating in 2017. According to Medicare claims data, James cared for 1,578 Medicare patients across 4,120 services. The services billed most often include injection, dexamethasone sodium phosphate, 1 mg, hyaluronan or derivative, triluron, for intra-articular injection, 1 mg, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more.
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.
Education & Training
Specialty
Credentials & Licensing
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.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (904) 953-2000
- Email not available
Practice Locations
4500 SAN PABLO RD S
Jacksonville, FL 32224
21475 Ridgetop Cir Ste 150
Sterling, VA 20166
Conditions Commonly Evaluated or Treated
Within Physical Medicine and Rehabilitation generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Brain and nerve conditions
- Multiple Sclerosis Symptoms
- Post-Polio Syndrome
- Weakness After Stroke
Chronic pain
Foot & ankle
Joint pain
- Frozen shoulder
- Hip osteoarthritis
- Knee osteoarthritis
- Lateral hip pain and trochanteric bursitis
- Shoulder Pain
Joints and arms
Joints and legs
Mobility
Muscle & tendon
Nerve and muscle pain
- Chronic pelvic pain
- Neuroma In Foot
- Piriformis syndrome
- Tarsal Tunnel Syndrome
- Thoracic outlet syndrome
Nerve pain
Neurological rehab
Pain management
Rehab and mobility
Rehabilitation
- Amputation and phantom limb pain
Spine and back
Spine care
- Arthritis of the spine
- Failed back surgery syndrome
- Herniated disc
- Lower back pain
- Neck pain
- Sacroiliac joint pain
- Sciatica
- Spinal stenosis
- Spondylolisthesis
- Upper Back Pain
- Whiplash
Procedures & services
Most searched procedures
- Concussion protocol
- Joint injections
- PRP therapy
- Ultrasound-guided injections
Devices and implants
Diagnostics
Diagnostics and tests
- Barium Swallow Study
- Functional Capacity Evaluation
- Nerve-conduction studies
Injections and pain relief
- Botox for chronic migraines
- Facet joint injection
- Ganglion impar block
- Hip Joint Injection
- Knee Nerve Ablation
- Nerve Hydrodissection
- Shoulder Joint Injection
- Shoulder nerve block
- Stem Cell Therapy For Joints
Joint care
Mobility
Muscle & tendon
- Tenex Procedure For Tendon Pain
Nerve procedures
Neuromuscular
- Baclofen pump management
- Botox for muscle spasms
- Spasticity assessment
Pain management
- Lumbar sympathetic block
- Occipital nerve block
- Peripheral nerve stimulator implant
- Piriformis muscle injection
- Prolotherapy
- Stellate ganglion block
- Trigger Point Injections
Physical medicine
Rehab and mobility
- Back Brace Fitting
- Lymphedema Drainage Therapy
- Non-Surgical Spinal Decompression
- Pelvic Floor Physical Therapy
- Shockwave Therapy
Rehabilitation
- Inpatient rehabilitation consultation
- Prosthetic and orthotic fitting
- Wheelchair Evaluation and Fitting
Spine procedures
- Caudal Epidural Injection
- Epidural steroid injection
- Kyphoplasty
- Medial branch block
- Radiofrequency ablation
- Sacroiliac joint injection
- Spinal cord stimulator trial
- Transforaminal Epidural Injection
- Vertebroplasty
Procedures Most Often Billed to Medicare
4,120 services · 1,578 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of peripheral nerve or branch | Procedure | 64640 |
181 | More often than most peers in Rehabilitation medicine |
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
64 | More often than most peers in Rehabilitation medicine |
| Injection of substance into lower spine canal using imaging guidance | Procedure | 62323 |
63 | More often than most peers in Rehabilitation medicine |
| Aspiration and/or injection of fluid large joint using ultrasound guidance | Procedure | 20611 |
38 | As often as other peers in Rehabilitation medicine |
| Injection of anesthetic or steroid into joint between lower spine and hip bone using imaging guidance | Procedure | 27096 |
28 | As often as other peers in Rehabilitation medicine |
| Injection of lower or sacral spine facet joint using imaging guidance, single level | Procedure | 64493 |
27 | Less often than most peers in Rehabilitation medicine |
| Injection of lower or sacral spine facet joint using imaging guidance, second level | Procedure | 64494 |
26 | Less often than most peers in Rehabilitation medicine |
| Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level | Procedure | 64483 |
26 | Less often than most peers in Rehabilitation medicine |
| Injection of trigger points, 1-2 muscles | Procedure | 20552 |
22 | As often as other peers in Rehabilitation medicine |
| X-ray of lower and sacral spine, minimum of 4 views | Imaging | 72110 |
116 | More often than most peers in Rehabilitation medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 5
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other rehabilitation physicians in Jacksonville 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Georgetown University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2017 at Georgetown University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Destruction of peripheral nerve or branch 8
Providers in FL who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Underwood?
Dr. Underwood is a rehabilitation physician in Jacksonville, FL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Physical Medicine & Rehabilitation”.
NPI registry
What is Dr. Underwood's address?
Dr. Underwood 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
How can I make an appointment with Dr. Underwood?
The number on file is (904) 953-2000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Underwood's NPI number?
Dr. Underwood's National Provider Identifier is 1912432022. 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
Where did Dr. Underwood train?
Dr. Underwood attended Georgetown University School of Medicine, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Underwood been practicing?
Dr. Underwood has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Underwood perform?
According to Medicare billing data, Dr. Underwood performs procedures including destruction of peripheral nerve or branch, aspiration and/or injection of fluid from large joint and injection of substance into lower spine canal using imaging guidance; reads or performs imaging such as x-ray of lower and sacral spine, minimum of 4 views and ultrasonic guidance for needle placement; provides treatments such as needle measurement of electrical activity in arm or leg muscles, complete study, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Underwood confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Underwood. 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.