Dr. Robert A. Grillo Jr., MD
- Medicare services, 2024
- 191
- Medicare patients, 2024
- 39
- Part D claims, 2024
- 1,960
- MIPS score, 2024
- 98
- Hospital affiliations
- 2
- Practice address
- 326 Washington St, Norwich, CT 06360
- Practice phone
- Call (860) 889-8331
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Grillo's professional email, personal email and mobile number
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Dr. Robert A. Grillo Jr. is a psychiatrist in Norwich, Connecticut
Dr. Grillo practices at Backus Hospital in Norwich, Connecticut, part of Hartford HealthCare.
Dr. Grillo's NPI, 1770565566, was assigned on November 17, 2005. Dr. Grillo holds Connecticut license 26488.
- NPI
- 1770565566NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143224691
- NPI enumeration date
- November 17, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (860) 889-8331
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert A. Grillo Jr. practices at Backus Hospital in Norwich, Connecticut
Dr. Grillo's primary practice is Backus Hospital, at 326 Washington St, Norwich, CT 06360 in New London County. The practice phone is (860) 889-8331.
- Backus Hospital326 Washington St, Norwich, CT 06360 · New London CountyPhone(860) 889-8331
Source: Dmand AI Affiliation Data
Dr. Robert A. Grillo Jr. is affiliated with 2 sites of care and 2 medical groups
Dr. Grillo's primary practice is Backus Hospital in Norwich, Connecticut, part of Hartford HealthCare. Dr. Grillo is also affiliated with Windham Hospital. The medical group on file is The William W. Backus Hospital. Dmand AI also links Dr. Grillo to 1 more medical group, named with a free account. Dr. Grillo's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert A. Grillo Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Grillo practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Backus Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert A. Grillo Jr. is one of 828 psychiatrists in Connecticut
Psychiatry is Dr. Grillo's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Grillo is licensed in Connecticut.
Specialties and state licenses
- Psychiatry, ConnecticutPrimary
Psychiatrists near Dr. Grillo
Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Robert A. Grillo Jr. billed Medicare for 191 services in 2024
CMS data shows 191 Medicare services from Dr. Grillo across 2 procedure codes in 2024, for 39 Medicare patients. Medicare paid $13,938 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Grillo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 402024: 178345%
- Tests and treatments
- 2023: 02024: 13
Dr. Grillo compared with the Connecticut median for psychiatrists, 2024
- Dr. Grillo
- Connecticut median
- Medicare services
- 191vs 11172% above
- Medicare patients
- 39vs 40Close to median
- Part D claims
- 1,827vs 14212.9 times
Medians across 886 psychiatrists in Connecticut with Dmand AI profiles that report each measure.
Dr. Grillo's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Grillo and other psychiatrists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert A. Grillo Jr. treated 39 Medicare patients in 2024, average age 65
CMS counts 39 Medicare patients who saw Dr. Grillo in 2024. The largest group is under 65, with 18 patients. 75% of them have anxiety, and 75% have depression. 59% are also on Medicaid. Their average risk score is 1.37, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Grillo's median patient age at 46, with 58% women.
Dr. Grillo's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Grillo's Medicare patients by sex, 2024
- Women1641%
- Men2359%
Chronic conditions among Dr. Grillo's Medicare patients, 2024
- Anxiety75%
- Depression75%
- High cholesterol75%
- Mood disorders75%
- High blood pressure72%
- Alcohol and drug use disorders33%
- COPD33%
- Ischemic heart disease33%
Share of Medicare patients with each condition. A patient can have several.
Dr. Grillo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women58%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert A. Grillo Jr. wrote 1,960 Medicare Part D claims in 2024
In 2024, Dr. Grillo wrote 1,960 Medicare Part D claims for 108 patients. 95% of them were for generic drugs. CMS names the drug for 1,827 of them, across 45 drugs with 11 or more claims each, at $378,926 in total drug cost. In 2023, CMS named 157 claims across 9 drugs.
Dr. Grillo's Part D claims by kind of drug, 2024
- Generic1,853 claims95%
- Brand-name107 claims5%
Dr. Grillo's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Grillo's Part D claims, 2024
- Antipsychotics, patients 65 and over8%150 of 1,960 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1572024: 1,8271064%
Drugs named by CMS: 45 in 2024, 9 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Robert A. Grillo Jr. scored 98 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 98 out of 100 for Dr. Grillo for performance year 2024, reported as part of a group. Dr. Grillo accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Grillo's MIPS scores, performance year 2024
- 98of 100Final score
- 90of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Robert A. Grillo Jr. received $560 in industry payments from 2023 to 2025
CMS Open Payments shows 20 general payments to Dr. Grillo from 9 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Indivior Inc. paid the most, $96.
General payments to Dr. Grillo by program year, 2023 to 2025
Companies that paid Dr. Grillo the most, 2023 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Robert A. Grillo Jr.'s profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Robert A. Grillo Jr.
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Robert A. Grillo Jr.'s NPI number?
Dr. Robert A. Grillo Jr.'s NPI number is 1770565566. It was assigned on November 17, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert A. Grillo Jr.?
Dr. Robert A. Grillo Jr. is a psychiatrist in Norwich, Connecticut. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Robert A. Grillo Jr. practice?
Dr. Grillo practices at 326 Washington St, Norwich, CT 06360. Dr. Grillo's primary practice is Backus Hospital in Norwich, Connecticut, part of Hartford HealthCare. Dmand AI also links Dr. Grillo to 1 medical group.
What is Dr. Robert A. Grillo Jr.'s office phone number?
The practice phone on file for Dr. Grillo is (860) 889-8331.
What is Dr. Robert A. Grillo Jr.'s medical license number?
Dr. Grillo holds Connecticut license 26488.
Which hospitals is Dr. Robert A. Grillo Jr. affiliated with?
Dr. Grillo practices at Backus Hospital in Norwich, Connecticut. Dr. Grillo is also affiliated with Windham Hospital.
What medical group is Dr. Robert A. Grillo Jr. part of?
Dr. Grillo is linked to The William W. Backus Hospital. Dmand AI links Dr. Grillo to 1 more medical group.
Does Dr. Robert A. Grillo Jr. accept Medicare?
Yes. CMS data shows Dr. Grillo billed Medicare for 191 services in 2024, and Dr. Grillo accepts Medicare assignment.
What is Dr. Robert A. Grillo Jr.'s MIPS score?
Dr. Grillo's MIPS final score for performance year 2024 is 98 out of 100, reported as part of a group.
How many Medicare patients does Dr. Robert A. Grillo Jr. see?
CMS counts 39 Medicare patients who saw Dr. Grillo in 2024, with an average age of 65.
Show 4 more questionsShow fewer questions
What services does Dr. Robert A. Grillo Jr. bill to Medicare?
In 2024, Dr. Grillo's most billed Medicare services were office visit, established patient (99214) and psychiatric service (90792).
What drugs does Dr. Robert A. Grillo Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Grillo's most prescribed drugs by claims were Trazodone HCl, Gabapentin and Quetiapine Fumarate.
Has Dr. Robert A. Grillo Jr. received payments from drug or device companies?
CMS Open Payments shows $560 in general payments to Dr. Grillo from 9 companies from 2023 to 2025. The largest total came from Indivior Inc.
How long has Dr. Robert A. Grillo Jr. been practicing?
Dr. Grillo graduated from medical school in 1983, 43 years ago.
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