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Edit this profileAt a glance
- 585 W College Ave, Santa Rosa, CA 95401
About Dr. Ackroyd
Based in Santa Rosa, CA, Gregory T. Ackroyd, M.D. is listed in the NPI registry under sleep medicine (neurology). Gregory graduated from New York University School of Medicine in 2000. Gregory is also listed as specializing in neurology. According to Medicare claims data, Gregory cared for 1,075 Medicare patients across 1,212 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, sleep study in sleep lab with continuous airway pressure (6 years or older), and new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more. NPI 1538192984 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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
- (707) 525-9616
- Email not available
Practice Locations
585 W COLLEGE AVE
Santa Rosa, CA 95401
Conditions Commonly Evaluated or Treated
Within Sleep Medicine 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
Wellness and energy
Most searched conditions
Breathing disruption
- Shallow Breathing In Sleep
- Suffocation Feelings In Bed
- Waking Up Gasping Or Choking
Circadian rhythm
- Antisocial personality disorder
- Delayed Sleep Phase
- Irregular Sleep-Wake Schedule
- Jet Lag Disorder
- Non-24-Hour Body Clock
- Shift Work Sleep Problems
- Sleep problems
Daytime alertness
- Daytime Exhaustion
- Excessive daytime sleepiness
- Excessive Sleeping
- Sleep Grogginess
- Sudden Muscle Weakness When Laughing
Excessive sleepiness
- Sleeping Beauty Syndrome
General sleep
- Hot flashes
- Nighttime Acid Reflux
- Pregnancy Sleep Problems
General symptoms
- Waking Up With Headaches
Hormonal sleep
- Menopause Sleep Problems
Insomnia & anxiety
- Sleep Anxiety
Movement disorders
- Head Banging While Sleeping
- Restless Arm Syndrome
Neurological sleep
- Nighttime Seizures
Parasomnia
- Acting Out Dreams
- Bedwetting
- Chronic Nightmares
- Exploding Head Syndrome
- Hallucinations While Falling Asleep
- Sleep Eating
- Sleep Groaning
- Sleep Paralysis
- Sleep Problems in Kids
- Sleep Talking
- Sleepwalking
Parasomnias
- Sexsomnia
Pediatric sleep
- Child Sleep Problems
Sleep breathing
- Mouth Breathing While Sleeping
- Upper Airway Resistance Syndrome
Sleep disruption
Sleep movement
- Nighttime Leg Kicking
- Sleep Twitches
- Teeth Grinding In Sleep
Sleep quality
- Restless Sleep
- Waking Up In Panic
Sleep timing
- Waking Up Too Early
Procedures & services
Breathing
Mental health
- Sleep habit coaching
Sleep
Most searched procedures
- CPAP titration
- Home sleep test
- Sleep study
Behavioral therapy
- Child Sleep Habit Coaching
- CPAP Desensitization Therapy
- Sleep counseling
- Sleep hygiene counseling
- Sleep Restriction Therapy
- Stimulus Control Therapy
Circadian therapy
- Light Box Therapy
- Melatonin Timing Protocol
Consultation
- CPAP Alternatives Consultation
- Sleep Choking And Acid Reflux Management
CPAP & positive airway pressure
- Adaptive Servo-Ventilation Setup
- Auto-CPAP Setup
- BiPAP therapy
- CPAP Heated Tubing & Humidifier Setup
- CPAP Mask Fitting
- CPAP Pressure Adjustment
Device management
- Central Sleep Apnea Pacemaker Setup
- Inspire Therapy Programming
Devices
- Nasal Dilator Fitting For Snoring
- Nasal Expiratory Valve Fitting
Diagnostic testing
- Daytime Nap Study
- Drug-induced sleep endoscopy
- Overnight Oxygen Tracking
- Sleep Alertness Test
- Sleep Tracker Watch Monitoring
Diagnostics
- Actigraphy Sleep Tracking
- Nasal Airflow Testing
- Overnight Brain Wave Monitoring
Evaluations
- DOT Sleep Apnea Clearance
- Pediatric Sleep Apnea Evaluation
Lifestyle & devices
- Positional Sleep Therapy
Medical management
- Sleep Medication Review & Tapering
Oral appliances
- Night Guard For Clenching
- Oral Appliance Adjustment
- Sleep Apnea Mouthpiece
- Snoring Mouth Guard Fitting
Respiratory care
- Nighttime Oxygen Therapy Setup
- Non-Invasive Ventilation Setup
Snoring & airway
- Laser Snoring Treatment
- Radiofrequency Tissue Reduction For Snoring
Surgery
- Tonsil And Adenoid Removal For Sleep Apnea
Surgical & implants
- Deviated Septum Surgery For Sleep
- Expansion Sphincter Pharyngoplasty
- Hypoglossal nerve stimulator implantation
- Jaw Advancement Surgery
- Palate Stiffening Procedure
- Tongue Base Reduction Surgery
- Turbinate Shrinking For Breathing
- Uvulopalatopharyngoplasty
Therapy
- Myofunctional Therapy for Tongue Thrust
- Sleep Dread Desensitization
Procedures Most Often Billed to Medicare
1,212 services · 1,075 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Sleep study in sleep lab with continuous airway pressure (6 years or older) | Treatment | 95811 |
275 | More than most peers in Sleep Medicine (Neurology) |
| Sleep study in sleep lab (6 years or older) | Treatment | 95810 |
112 | More than most peers in Sleep Medicine (Neurology) |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
469 | More often than most peers in Sleep Medicine (Neurology) |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
191 | More than most peers in Sleep Medicine (Neurology) |
| Home sleep test (hst) with type iv portable monitor, unattended; minimum of 3 channels | Billing code | G0400 |
79 | Too few peers to compare |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
74 | More often than most peers in Sleep Medicine (Neurology) |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
12 | Less often than most peers in Sleep Medicine (Neurology) |
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 3
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.
Trained at New York University School of Medicine 1
Other providers in the same specialty who trained at the same institution.
More connections — 14 related providers in 2 groups
Class of 2000 at New York University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Sleep study in sleep lab with continuous airway pressure (6 years or older) 6
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Gregory T. Ackroyd?
Gregory T. Ackroyd is a sleep medicine (neurology) in Santa Rosa, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Gregory T. Ackroyd's address?
Gregory T. Ackroyd is listed at 585 W College Ave, Santa Rosa, CA 95401. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Gregory T. Ackroyd?
The number on file is (707) 525-9616. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Gregory T. Ackroyd's NPI number?
Gregory T. Ackroyd's National Provider Identifier is 1538192984. 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 Gregory T. Ackroyd train?
Gregory T. Ackroyd attended New York University School of Medicine, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
How long has Gregory T. Ackroyd been practicing?
Gregory T. Ackroyd has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
What procedures does Gregory T. Ackroyd perform?
According to Medicare billing data, Gregory T. Ackroyd provides treatments such as sleep study in sleep lab with continuous airway pressure and sleep study in sleep lab, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Gregory T. Ackroyd confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Gregory T. Ackroyd. If this is you, claiming it is free.
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