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Edit this profileGregory J. Gunyan, D.O. practices psychiatry in Smithtown, NY. Gregory is a 2009 graduate of New York College of Osteo Medicine of New York Institute of Technology. Gregory is also listed as specializing in student in an organized health care education program. Medicare claims data shows Gregory provided 196 services to 123 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes. The provider's National Provider Identifier (NPI) is 1528386265.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
222 E MIDDLE COUNTRY RD STE 111
Smithtown, NY 11787
Within Psychiatry generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Cognitive and adjustment
Eating, sleep, and somatic
Geriatric care
Mental Health
Neurodevelopmental and behavioral
Most searched conditions
Anxiety, trauma, and obsessive-compulsive
Mood disorders
Psychotic disorders
Substance-related and addictive
Addiction & Substance Use
Eating Disorders
Mood & Depression
Personality and dissociative
Sleep & Wakefulness
Advanced treatment
Assessment
Most searched procedures
Addiction care
Addiction Medicine
Assessments
Brain stimulation
Consultations
Diagnostics
Inpatient care
Interventional psychiatry
Psychotherapy
Sleep Medicine
Specialized care
Therapy
Therapy and care
196 services · 123 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
110 | As often as other peers in Psychiatry |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
55 | Less often than most peers in Psychiatry |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
31 | Less often than most peers in Psychiatry |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Gregory J. Gunyan is a psychiatrist in Smithtown, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychiatry”.
NPI registry
Gregory J. Gunyan is listed at 222 E Middle Country Rd Ste 111, Smithtown, NY 11787. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (631) 265-1622. Contact the office directly to confirm availability and scheduling.
NPI registry
Gregory J. Gunyan's National Provider Identifier is 1528386265. 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
Gregory J. Gunyan attended New York College of Osteo Medicine of New York Institute of Technology, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
Gregory J. Gunyan has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Gregory J. Gunyan the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. 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 Gregory J. Gunyan. If this is you, claiming it is free.
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