KILLIAN R. O'CONNELL (M.D.) – Psychiatry Physician, NPI 1265402515

KILLIAN R. O'CONNELL (M.D.) is a healthcare provider. based in Amherst, Massachusetts. specializing in PSYCHIATRY. They hold the professional credentials M.D.. They hold a License No. 150074 (MA). The NPI Number for KILLIAN R. O'CONNELL (M.D.) is 1265402515

Main info

Male
Sole Proprietor
39 Years Of Experience
Accepts Medicare Assignment
Name
KILLIAN R. O'CONNELL (M.D.)
NPI
1265402515
Phone
(413) 549-9232
Address
6 UNIVERSITY DR
Enumeration Date
26 January 2006
Last Update Date
8 July 2007

Doctor Profile

Medical School Name
OTHER
Secondary Phone
4135499232
Graduation Year
1987 (39 years ago)
PAC ID
3870554017
Group Practice PAC ID
6002861697
Professional Enrollment ID
I20041021000524
Address ID
MA010022265AM6XXXXDRXX301
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

1,743 PSYCHIATRY in MA

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Provider Addresses for KILLIAN R. O'CONNELL (M.D.)

  • 6, University Drive, Amherst, Hampshire, Massachusetts, 01002, United States

    SUITE 203

    AMHERST, MA 010022360

    Phone: (413) 549-9232

    Fax: (413) 549-9233

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 7 Open Payments records for all available years, with a total value of $121.

Total Amount is formed as General ($121) + Research ($0) + Ownership ($0) = $121.

Last reported payment date: 2024-09-17 • Largest payer in this snapshot: Lundbeck LLC ($107).

Total Amount

$121

General + Research + Ownership

Payments

7

Total payment records

General Amount

$121

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-09-17

Latest reported date

Top Companies

Largest payers in this snapshot

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2004-10-21

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20041021000524IPsychiatryMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99442Telephone medical discussion with physician, 11-20 minutes679168$0
90833Psychotherapy with evaluation and management visit, 30 minutes426118$0
99443Telephone medical discussion with physician, 21-30 minutes8258$0
99213Established patient office or other outpatient visit, 20-29 minutes6525$0
View full utilization report →

Insurance plans in this area (ZIP 01002)

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Provider's Procedures

KILLIAN R. O'CONNELL (M.D.) performs procedures in PSYCHIATRY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
PSYCHIATRYMA90833Psychotherapy, 30 minutes with patient and/or family member439102

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 6002861697View full group profile
NameSpecialtyState
Nurse PractitionerCT
Nurse PractitionerMA
-MA

Reviews

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Frequently asked questions

What is KILLIAN R. O'CONNELL (M.D.)'s NPI number?
KILLIAN R. O'CONNELL (M.D.)'s NPI is 1265402515 — the number used across U.S. healthcare to identify this provider.
Active or inactive — what applies to KILLIAN R. O'CONNELL (M.D.)?
You should see KILLIAN R. O'CONNELL (M.D.) as active in CMS-hosted NPPES data.
What area of care is associated with KILLIAN R. O'CONNELL (M.D.)?
KILLIAN R. O'CONNELL (M.D.)'s record emphasizes Psychiatry Physician. Clinical services aligned with this taxonomy classification.
What locale is associated with KILLIAN R. O'CONNELL (M.D.)?
Directory geography for KILLIAN R. O'CONNELL (M.D.) centers on Amherst, Massachusetts.
Can I trust this NPI listing for KILLIAN R. O'CONNELL (M.D.)?
The listing is sourced from the national NPI registry. If something looks off, compare with NPPES and the clinic's website.

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