IndividualActiveMedicare EnrolledPrescriberCan Order/Refer

William Charles O'Callahan Jr.

Emergency Medicine

NPI: 1114964186Holden, Massachusetts, 01520(508) 829-3800Male

About William Charles O'Callahan Jr.

William Charles O'Callahan Jr., MD, is a male healthcare professional specializing in Emergency Medicine, registered under National Provider Identifier (NPI) number 1114964186. William Charles O'Callahan Jr. received his medical education at UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL, graduating in 1990.

Their primary practice is located at 5 SHREWSBURY ST STE D, Holden, Massachusetts 01520. Patients can reach the office at (508) 829-3800. William Charles O'Callahan Jr. is affiliated with 1 hospital in the area.

William Charles O'Callahan Jr. is enrolled in Medicare and accepts Medicare patients, is authorized to order and refer Medicare services, is authorized to prescribe medications. As a prescriber, William Charles O'Callahan Jr. has 550 prescription claims processed, totaling $6,140 in drug costs.

The opioid prescribing rate is 2.2%. William Charles O'Callahan Jr. has been NPI-registered since 2006.

Key Metrics

Rx Claims

550

$6,140.48

Opioid Rate

2.2%

Practice Locations

Affiliated Hospitals

Doctor Details

Identity & Credentials

NPI Number: 1114964186
Entity Type: Individual
First Name: William
Last Name: O'Callahan
Credential: MD
Gender: Male
Medical School: UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL
Graduation Year: 1990
Sole Proprietor: No
Status: active

Primary Practice Location

Address: 5 SHREWSBURY ST STE D
City: Holden
State: Massachusetts
ZIP: 01520-1960
Country: United States
Phone: (508) 829-3800
Fax: (508) 829-3802

Specialty & Taxonomy

Primary Specialty: Emergency Medicine
Classification: Emergency Medicine
Taxonomy Code: 207P00000X

NPI Registration

Enumeration Date: May 31, 2006
Last Updated: Jan 21, 2025
Certification Date: Jan 21, 2025

Mailing Address

Address: 5 SHREWSBURY ST STE D
City: HOLDEN
State: MA
ZIP: 015201960

Medicare Enrollment

Medicare Enrolled: Yes
Can Order/Refer: Yes
Telehealth: No
Excluded: No

Prescriber Information

Authorized Prescriber: Yes
Total Rx Claims: 550
Total Rx Cost: $6,140.48
Opioid Prescriber Rate: 2.2%

Frequently Asked Questions

What is William Charles O'Callahan Jr.'s NPI number?

William Charles O'Callahan Jr.'s National Provider Identifier (NPI) is 1114964186. An NPI is a unique 10-digit identification number issued by the Centers for Medicare & Medicaid Services (CMS) to healthcare providers in the United States.

What does William Charles O'Callahan Jr. specialize in?

William Charles O'Callahan Jr. specializes in Emergency Medicine. They received their medical education at UNIVERSITY OF MASSACHUSETTS MEDICAL SCHOOL (class of 1990).

Where is William Charles O'Callahan Jr. located?

William Charles O'Callahan Jr. practices at 5 SHREWSBURY ST STE D, Holden, Massachusetts 01520. You can reach them by phone at (508) 829-3800.

Does William Charles O'Callahan Jr. accept Medicare?

Yes, William Charles O'Callahan Jr. is enrolled in the Medicare program and accepts Medicare patients. They are also authorized to order and refer services under Medicare.

Does William Charles O'Callahan Jr. offer telehealth or virtual visits?

William Charles O'Callahan Jr. does not currently offer telehealth services. In-person visits are required at their practice location.

Can William Charles O'Callahan Jr. prescribe medications?

Yes, William Charles O'Callahan Jr. is an authorized prescriber. They have processed 550 prescription claims totaling $6,140.48.

What is an NPI Number?

A National Provider Identifier (NPI) is a unique 10-digit identification number issued to healthcare providers in the United States by the Centers for Medicare & Medicaid Services (CMS). Required under HIPAA, every healthcare provider who transmits health information electronically must have an NPI. The NPI for William Charles O'Callahan Jr. is 1114964186.