Physician Profile
Marcos J. Cruz, MD
Unclaimed ProfileAbout Dr. Cruz
Marcos J. Cruz, MD practices neurology in Guaynabo, PR. Marcos is a 2003 graduate of New York Medical College. According to Medicare claims data, Marcos cared for 4,357 Medicare patients across 6,924 services. The services billed most often include continuous intraoperative neurophysiology monitoring, from outside the operating room (remote or nearby), per patient, (attention directed exclusively to one patient) each 15 minutes (list in addition to primary procedure), placement of skin electrodes and measurement of stimulated sites on arms and legs, and needle measurement of electrical activity in arm, leg, trunk or head muscles, limited study.
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
- (787) 650-7272
- Email not available
Practice Locations
35 CALLE JUAN C BORBON STE 67-411
Guaynabo, PR 00969
700 US Highway 46 Ste 420
Fairfield, NJ 07004
Conditions Commonly Evaluated or Treated
Within Neurology 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
- Alzheimer's disease
- Epilepsy
- Migraines
- Multiple sclerosis
- Neuropathy
- Parkinson's disease
Headache and facial pain
- Tension headaches
- Trigeminal neuralgia
Memory and cognition
- Mild cognitive impairment
Movement disorders
- Essential tremor
- Huntington's disease
- Restless legs syndrome
Neuromuscular and peripheral nerve
- Amyotrophic lateral sclerosis
- Carpal tunnel
- Diabetic neuropathy
- Guillain-Barré syndrome
- Muscular dystrophy
- Myasthenia gravis
Seizures and epilepsy
- Functional seizures
Stroke and vascular
- Brain aneurysm
- Transient ischemic attack
Brain & Spine
- Severe back pain
Brain tumors
- Brain Tumor Symptoms
Head & Facial Pain
- Cluster Headaches
Memory & Cognitive
- Normal Pressure Hydrocephalus
Movement Disorders
- Balance Problems and Ataxia
- Stiff neck
- Stiff Person Syndrome
- Tourette Syndrome and Tics
Nerve Compression
- Sciatica
Sleep & Movement
- Narcolepsy
Spine and nerve
- Cervical radiculopathy
Spine, brain injury, and functional
- Bell's palsy
- Concussion
Procedures & services
Most searched procedures
- Botox for migraines
- EEG
- EMG
- Nerve block
- Sleep study
Consultation and testing
- Ambulatory EEG
- Evoked-potential testing
- Nerve-conduction studies
Consultations & Exams
- Neurological Second Opinion
- Spasticity Assessment and Treatment
- Stroke Risk Evaluation
Consultations and exams
- Neurological Exam and Consultation
Device management
- Deep Brain Stimulation Adjustment
- Responsive Neurostimulator Programming
Diagnostic Testing
- Cognitive and memory screening
- Genetic Testing for Neurological Disorders
- Neuromuscular Ultrasound
- Neuropsychological Testing
- Normal Pressure Hydrocephalus Tap Test
- Tilt Table Test
Infusion and medical therapies
- Neurology Infusion Therapy
Infusions & Therapies
- IVIG Infusion Therapy
- Migraine Preventive Injections and Infusions
- MS Disease-Modifying Infusion Therapy
- Plasmapheresis
Injections & Pain Relief
- Botox Injections for Excessive Drooling
- Botox Injections for Muscle Spasms and Dystonia
- Trigger Point Injections
Medication Management
- Seizure Medication Management
Neuromodulation
- Baclofen Pump Programming and Refills
- Vagus nerve stimulation management
Office procedures
- Lumbar puncture
- Occipital nerve block
Trauma & Injury
- Concussion Evaluation and Baseline Testing
- Concussion Return-to-Play Clearance
Procedures Most Often Billed to Medicare
6,924 services · 4,357 patients · 14 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Needle measurement and recording of electrical activity of muscles at bladder and bowel openings | Procedure | 51785 |
29 | More often than most peers in Neurology |
| Placement of skin electrodes and measurement of stimulated sites on arms and legs | Treatment | 95938 |
1,180 | More than most peers in Neurology |
| Needle measurement of electrical activity in arm, leg, trunk or head muscles, limited study | Treatment | 95870 |
859 | More than most peers in Neurology |
| Testing of nerve-muscle junction | Treatment | 95937 |
794 | More than most peers in Neurology |
| Measurement of brain wave activity (eeg) outside the brain during surgery | Treatment | 95955 |
581 | More than most peers in Neurology |
| Placement of skin electrodes and measurement of central motor stimulation in arms and legs | Treatment | 95939 |
531 | More than most peers in Neurology |
| Needle measurement of electrical activity in arm or leg muscles, 2 extremities | Treatment | 95861 |
512 | More than most peers in Neurology |
| Needle measurement of electrical activity in muscles on both sides of body | Treatment | 95868 |
96 | More than most peers in Neurology |
| Needle measurement of electrical activity in muscles on side of body | Treatment | 95867 |
39 | Too few peers to compare |
| Placement of skin electrodes and measurement of central motor stimulation in legs | Treatment | 95929 |
16 | Too few peers to compare |
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.
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 neurologists in Guaynabo 8
Same specialty, same city.
Trained at New York Medical College 8
Other providers in the same specialty who trained at the same institution.
More connections — 7 related providers in 1 group
Class of 2003 at New York Medical College 7
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Cruz specialize in?
Dr. Cruz is a neurologist in Guaynabo, PR. That is the designation recorded for this NPI in the federal registry, where it is listed as “Neurology”.
NPI registry
Where is Dr. Cruz located?
Dr. Cruz is listed at 35 Calle Juan C Borbon Ste 67-411, Guaynabo, PR 00969. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Cruz's phone number?
The number on file is (787) 650-7272. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Cruz's NPI number?
Dr. Cruz's National Provider Identifier is 1265556898. 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. Cruz go to medical school?
Dr. Cruz attended New York Medical College, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Cruz been practicing?
Dr. Cruz has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Cruz do most often?
According to Medicare billing data, Dr. Cruz performs procedures including needle measurement and recording of electrical activity of muscles at bladder and bowel openings; provides treatments such as placement of skin electrodes and measurement of stimulated sites on arms and legs and needle measurement of electrical activity in arm, leg, trunk or head muscles, limited study, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Cruz confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Cruz. 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.