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Edit this profileWhere to find Robert A. Grillo, M.D.
- Groton location main office
1 Wahoo Ave, Groton, CT 06349 - Norwich location
326 Washington St, Norwich, CT 06360 - Willimantic location
112 Mansfield Ave, Willimantic, CT 06226
About Dr. Grillo
Robert A. Grillo, M.D. practices psychiatry in Groton, CT. According to Medicare claims data, Robert cared for 49 Medicare patients across 191 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 and psychiatric diagnostic evaluation with medical services. The provider's National Provider Identifier (NPI) is 1770565566.
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
- (860) 694-4966
- Email not available
Practice Locations
1 WAHOO AVE
Groton, CT 06349
326 Washington St
Norwich, CT 06360
112 Mansfield Ave
Willimantic, CT 06226
Conditions Commonly Evaluated or Treated
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.
Conditions
Most searched conditions
Anxiety, trauma, and obsessive-compulsive
Mood disorders
Psychotic disorders
Substance-related and addictive
Addiction & Substance Use
Cognitive and adjustment
Eating Disorders
Eating, sleep, and somatic
Mood & Depression
Neurodevelopmental and behavioral
Personality and dissociative
Sleep & Wakefulness
Procedures & services
Most searched procedures
- Anxiety and depression treatment
- Cognitive behavioral therapy
- Medication management
- Psychiatric evaluation
- Telepsychiatry
Assessment
Addiction care
Addiction Medicine
Assessments
Brain stimulation
Consultations
Diagnostics
Inpatient care
Interventional psychiatry
Psychotherapy
Sleep Medicine
Specialized care
Therapy
Therapy and care
Procedures Most Often Billed to Medicare
191 services · 49 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychiatric diagnostic evaluation with medical services | Treatment | 90792 |
13 | Less often than most 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 |
178 | More often than most peers in Psychiatry |
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.
Other psychiatrists at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
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.
More connections — 29 related providers in 4 groups
Other psychiatrists in Groton 5
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1983 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Psychiatric diagnostic evaluation with medical services 8
Providers in CT who bill this service to Medicare most often.
Common questions
What is Robert A. Grillo's specialty?
Robert A. Grillo is a psychiatrist in Groton, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychiatry”.
NPI registry
Where can I find Robert A. Grillo?
Robert A. Grillo is listed at 1 Wahoo Ave, Groton, CT 06349. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Robert A. Grillo?
The number on file is (860) 694-4966. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Robert A. Grillo's NPI number?
Robert A. Grillo's National Provider Identifier is 1770565566. 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
What is Robert A. Grillo's education?
Robert A. Grillo attended Other, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
How long has Robert A. Grillo been practicing?
Robert A. Grillo has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
What is Robert A. Grillo known for?
According to Medicare billing data, Robert A. Grillo provides treatments such as psychiatric diagnostic evaluation with medical services, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Robert A. Grillo confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Robert A. Grillo. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.