Dr. Robert Guerrera, MD
- Medicare services, 2018
- 289
- Part D claims, 2024
- 949
- Industry payments
- $646
- Affiliated sites
- 2
- Medical group
- 1
- Practice address
- 4 Byington Place, Norwalk, CT 06850
- Practice phone
- Call (203) 866-2541
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Connecticut Renaissance - Outpatient Behavioral Health Clinic - Norwalk
Outpatient Addiction Treatment · Norwalk, Connecticut
Find Dr. Guerrera's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Robert Guerrera is a psychiatrist in Norwalk, Connecticut
Dr. Guerrera practices at Connecticut Renaissance - Outpatient Behavioral Health Clinic - Norwalk in Norwalk, Connecticut.
Dr. Guerrera's NPI, 1033232228, was assigned on April 10, 2007. Dr. Guerrera graduated from University of Bologna in 1995. Dr. Guerrera's Connecticut license number on file is 042713.
- NPI
- 1033232228NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789645458
- NPI enumeration date
- April 10, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (203) 866-2541
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 57
- Medical school graduation
- 1995
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert Guerrera practices at Connecticut Renaissance - Outpatient Behavioral Health Clinic - Norwalk in Norwalk, Connecticut
Dr. Guerrera's primary practice is Connecticut Renaissance - Outpatient Behavioral Health Clinic - Norwalk, at 4 Byington Place, Norwalk, CT 06850. The practice phone is (203) 866-2541.
- Connecticut Renaissance - Outpatient Behavioral Health Clinic - Norwalk4 Byington Place, Norwalk, CT 06850Phone(203) 866-2541
Source: Dmand AI Affiliation Data
Dr. Robert Guerrera is affiliated with 2 sites of care and 1 medical group
Dr. Guerrera's primary practice is Connecticut Renaissance - Outpatient Behavioral Health Clinic - Norwalk in Norwalk, Connecticut. The medical group on file is Connecticut Renaissance. Dmand AI also links Dr. Guerrera to 1 more group practice or clinic, named with a free account. Dr. Guerrera's employer is on file too: a behavioral health center.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert Guerrera's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Guerrera practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Connecticut Renaissance - Outpatient Behavioral Health Clinic - Norwalk | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert Guerrera is one of 828 psychiatrists in Connecticut
Psychiatry is Dr. Guerrera's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Guerrera is board certified in psychiatry by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Guerrera's licenses on file in 2 states: Connecticut and North Carolina.
Specialties and state licenses
- Psychiatry, ConnecticutPrimary
- North Carolina license
Clinical focus
Dmand AI lists anxiety and schizophrenia among the conditions Dr. Guerrera treats.
Psychiatrists near Dr. Guerrera
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 Guerrera billed Medicare for 289 services in 2018
CMS data shows 289 Medicare services from Dr. Guerrera across 3 procedure codes in 2018. Medicare paid $19,324 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Guerrera's Medicare services by type, 2017 to 2018
- 2017
- 2018
- Office and hospital visits
- 2017: 3512018: 28918%
Dr. Guerrera compared with the Connecticut median for psychiatrists, 2018
- Dr. Guerrera
- Connecticut median
- Medicare services
- 289vs 1112.6 times
- Part D claims
- 787vs 1425.5 times
Medians across 886 psychiatrists in Connecticut with Dmand AI profiles that report each measure.
Dr. Guerrera's most billed Medicare procedure codes, 2018
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. Guerrera and other psychiatrists in Connecticut.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Guerrera's patients have a median age of 41
Across all payers, Dmand AI patient panel data puts Dr. Guerrera's median patient age at 41, with 8% women.
Dr. Guerrera's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 41
Patient panel by sex, all payers
- Women8%
- Men91%
Source: Dmand AI Patient Panel Data
Dr. Robert Guerrera wrote 949 Medicare Part D claims in 2024
In 2024, Dr. Guerrera wrote 949 Medicare Part D claims for 55 patients. 94% of them were for generic drugs. CMS names the drug for 787 of them, across 30 drugs with 11 or more claims each, at $59,390 in total drug cost. In 2023, CMS named 735 claims across 30 drugs.
Dr. Guerrera's Part D claims by kind of drug, 2024
- Generic891 claims94%
- Brand-name58 claims6%
Dr. Guerrera'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. Guerrera's Part D claims, 2024
- Antipsychotics, patients 65 and over9%86 of 949 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: 7352024: 7877%
Drugs named by CMS: 30 in 2024, 30 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 Guerrera offers telehealth to Medicare patients
Dr. Guerrera accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Guerrera as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Robert Guerrera received $646 in industry payments from 2016 to 2025
CMS Open Payments shows 19 general payments to Dr. Guerrera from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 90% of the total. Sunovion Pharmaceuticals Inc. paid the most, $222.
General payments to Dr. Guerrera by program year, 2016 to 2025
General payments to Dr. Guerrera by kind, 2016 to 2025
- Food and beverage$58390%
- Education$6310%
Companies that paid Dr. Guerrera the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert Guerrera graduated from University of Bologna
Dr. Guerrera graduated from University of Bologna in 1995.
- Medical school
- Board certified in psychiatry
Source: Dmand AI Professional Profile Data
Dr. Robert Guerrera accepts plans from 1 insurance carrier
Dr. Guerrera is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert Guerrera'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 Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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 Guerrera
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 Guerrera's NPI number?
Dr. Robert Guerrera's NPI number is 1033232228. It was assigned on April 10, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Guerrera?
Dr. Robert Guerrera is a psychiatrist in Norwalk, Connecticut. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Robert Guerrera practice?
Dr. Guerrera practices at 4 Byington Place, Norwalk, CT 06850. Dr. Guerrera's primary practice is Connecticut Renaissance - Outpatient Behavioral Health Clinic - Norwalk in Norwalk, Connecticut. Dmand AI also links Dr. Guerrera to 1 group practice or clinic.
What is Dr. Robert Guerrera's office phone number?
The practice phone on file for Dr. Guerrera is (203) 866-2541.
What is Dr. Robert Guerrera's medical license number?
Dr. Guerrera's Connecticut license number on file is 042713, one of the licenses on file in 2 states.
Which states has Dr. Robert Guerrera been licensed in?
Dmand AI has state licenses on file for Dr. Guerrera in Connecticut (2004 to 2025) and North Carolina (2000 to 2004).
What medical group is Dr. Robert Guerrera part of?
Dr. Guerrera is linked to Connecticut Renaissance.
Does Dr. Robert Guerrera accept Medicare?
Yes. CMS data shows Dr. Guerrera billed Medicare for 289 services in 2018, and Dr. Guerrera accepts Medicare assignment.
Does Dr. Robert Guerrera offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Guerrera as offering telehealth services.
Is Dr. Robert Guerrera board certified?
Yes. Dr. Guerrera is board certified in psychiatry by the American Board of Psychiatry and Neurology.
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What services does Dr. Robert Guerrera bill to Medicare?
In 2018, Dr. Guerrera's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99239) and hospital inpatient care (99222).
Where did Dr. Robert Guerrera go to medical school?
Dr. Guerrera graduated from University of Bologna in 1995.
What drugs does Dr. Robert Guerrera prescribe most?
In 2024 Medicare Part D data, Dr. Guerrera's most prescribed drugs by claims were Escitalopram Oxalate, Quetiapine Fumarate and Clozapine.
Has Dr. Robert Guerrera received payments from drug or device companies?
CMS Open Payments shows $646 in general payments to Dr. Guerrera from 5 companies from 2016 to 2025. The largest total came from Sunovion Pharmaceuticals Inc.
How long has Dr. Robert Guerrera been practicing?
Dr. Guerrera graduated from medical school in 1995, 31 years ago.
What insurance does Dr. Robert Guerrera accept?
Dr. Guerrera is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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