Dr. Killian R. O'Connell, MD
- Medicare services, 2024
- 693
- Medicare patients, 2024
- 153
- Part D claims, 2024
- 2,204
- Industry payments
- $334
- Affiliated sites
- 1
- Practice address
- 6 University Dr Suite 203 Suite 203, Amherst, MA 01002-2265
- Practice phone
- Call (413) 549-9232
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Amherst Psychiatric Associates
Behavioral health practice · Amherst, Massachusetts
Find Dr. O'Connell'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. Killian R. O'Connell is a psychiatrist in Amherst, Massachusetts
Dr. O'Connell practices at Amherst Psychiatric Associates in Amherst, Massachusetts.
Dr. O'Connell's NPI, 1265402515, was assigned on January 26, 2006. Dr. O'Connell holds Massachusetts license 150074.
- NPI
- 1265402515NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3870554017
- NPI enumeration date
- January 26, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (413) 549-9232
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Killian R. O'Connell practices at Amherst Psychiatric Associates in Amherst, Massachusetts
Dr. O'Connell's primary practice is Amherst Psychiatric Associates, at 6 University Dr Suite 203 Suite 203, Amherst, MA 01002-2265. The practice phone is (413) 549-9232.
- Amherst Psychiatric Associates6 University Dr Suite 203 Suite 203, Amherst, MA 01002-2265Phone(413) 549-9232
Source: Dmand AI Affiliation Data
Dr. Killian R. O'Connell is affiliated with 1 site of care and 1 medical group
Dr. O'Connell's primary practice is Amherst Psychiatric Associates in Amherst, Massachusetts. The medical group on file is Amherst Psychiatric Associates.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Killian R. O'Connell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Connell practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Amherst Psychiatric Associates | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Killian R. O'Connell is one of 1,857 psychiatrists in Massachusetts
Psychiatry is Dr. O'Connell's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. O'Connell is licensed in Massachusetts.
Specialties and state licenses
- Psychiatry, MassachusettsPrimary
Psychiatrists near Dr. O'Connell
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. Killian R. O'Connell billed Medicare for 693 services in 2024
CMS data shows 693 Medicare services from Dr. O'Connell across 5 procedure codes in 2024, for 153 Medicare patients. Medicare paid $41,432 for them. Every service was in an office.
Dr. O'Connell's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8262024: 44946%
- Tests and treatments
- 2023: 4262024: 24443%
Dr. O'Connell compared with the Massachusetts median for psychiatrists, 2024
- Dr. O'Connell
- Massachusetts median
- Medicare services
- 693vs 1724.0 times
- Medicare patients
- 153vs 423.6 times
- Part D claims
- 2,110vs 9222.9 times
Medians across 2,056 psychiatrists in Massachusetts with Dmand AI profiles that report each measure.
Dr. O'Connell'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. O'Connell and other psychiatrists in Massachusetts.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Killian R. O'Connell treated 153 Medicare patients in 2024, average age 74
CMS counts 153 Medicare patients who saw Dr. O'Connell in 2024. The largest group is 65 to 74, with 86 patients. 75% of them have anxiety, and 75% have depression. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. O'Connell's median patient age at 47, with 58% women.
Dr. O'Connell's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. O'Connell's Medicare patients by sex, 2024
- Women9663%
- Men5737%
Chronic conditions among Dr. O'Connell's Medicare patients, 2024
- Anxiety75%
- Depression75%
- Mood disorders75%
- High cholesterol65%
- High blood pressure59%
- Arthritis50%
- Osteoporosis24%
- Chronic kidney disease16%
Share of Medicare patients with each condition. A patient can have several.
Dr. O'Connell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
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. Killian R. O'Connell wrote 2,204 Medicare Part D claims in 2024
In 2024, Dr. O'Connell wrote 2,204 Medicare Part D claims for 213 patients. 99% of them were for generic drugs. CMS names the drug for 2,110 of them, across 31 drugs with 11 or more claims each, at $29,498 in total drug cost. In 2023, CMS named 2,711 claims across 38 drugs.
Dr. O'Connell's Part D claims by kind of drug, 2024
- Generic2,182 claims99%
- Brand-name22 claims1%
Dr. O'Connell'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. O'Connell's Part D claims, 2024
- Antipsychotics, patients 65 and over6%133 of 2,204 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: 2,7112024: 2,11022%
Drugs named by CMS: 31 in 2024, 38 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. Killian R. O'Connell offers telehealth to Medicare patients
Dr. O'Connell accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. O'Connell as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Killian R. O'Connell received $334 in industry payments from 2016 to 2024
CMS Open Payments shows 12 general payments to Dr. O'Connell from 7 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 55% of the total. Alkermes, Inc. paid the most, $150.
General payments to Dr. O'Connell by program year, 2016 to 2024
General payments to Dr. O'Connell by kind, 2016 to 2024
- Food and beverage$18455%
- Speaker and faculty fees$15045%
Companies that paid Dr. O'Connell the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Killian R. O'Connell'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 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) |
| 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. Killian R. O'Connell
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. Killian R. O'Connell's NPI number?
Dr. Killian R. O'Connell's NPI number is 1265402515. It was assigned on January 26, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Killian R. O'Connell?
Dr. Killian R. O'Connell is a psychiatrist in Amherst, Massachusetts. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Killian R. O'Connell practice?
Dr. O'Connell practices at 6 University Dr Suite 203 Suite 203, Amherst, MA 01002-2265. Dr. O'Connell's primary practice is Amherst Psychiatric Associates in Amherst, Massachusetts.
What is Dr. Killian R. O'Connell's office phone number?
The practice phone on file for Dr. O'Connell is (413) 549-9232.
What is Dr. Killian R. O'Connell's medical license number?
Dr. O'Connell holds Massachusetts license 150074.
What medical group is Dr. Killian R. O'Connell part of?
Dr. O'Connell is linked to Amherst Psychiatric Associates.
Does Dr. Killian R. O'Connell accept Medicare?
Yes. CMS data shows Dr. O'Connell billed Medicare for 693 services in 2024, and Dr. O'Connell accepts Medicare assignment.
Does Dr. Killian R. O'Connell offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. O'Connell as offering telehealth services.
How many Medicare patients does Dr. Killian R. O'Connell see?
CMS counts 153 Medicare patients who saw Dr. O'Connell in 2024, with an average age of 74.
What services does Dr. Killian R. O'Connell bill to Medicare?
In 2024, Dr. O'Connell's most billed Medicare services were psychiatric service (90833), care management and other visits (99442) and office visit, established patient (99213).
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What drugs does Dr. Killian R. O'Connell prescribe most?
In 2024 Medicare Part D data, Dr. O'Connell's most prescribed drugs by claims were Lorazepam, Bupropion HCl SR and Bupropion XL.
Has Dr. Killian R. O'Connell received payments from drug or device companies?
CMS Open Payments shows $334 in general payments to Dr. O'Connell from 7 companies from 2016 to 2024. The largest total came from Alkermes, Inc.
How long has Dr. Killian R. O'Connell been practicing?
Dr. O'Connell graduated from medical school in 1987, 39 years ago.
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