Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

KATHERINE M CALLAGHAN M.D.
NPI 1922329663
Obstetrics & Gynecology in Worcester, MA

Active since June 17, 2010PECOS EnrolledAccepts Medicare Assignment
97.02/100
CMS Quality Rating
328 SHREWSBURY ST, WORCESTER, MA 01604(508) 755-4861(508) 752-1392 Get Directions Write a Review

NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 7, 2026, Oct 28, 2020, Mar 1, 2016 (3 updates tracked since 2016).

About Katherine M Callaghan M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATHERINE M CALLAGHAN M.D. (NPI 1922329663) is an individual obstetrics & gynecology provider in Worcester, Massachusetts, licensed in Massachusetts (259143) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS, is affiliated with Umass Memorial Medical Center/university Campus, and is a graduate of University Of Massachusetts Medical School (2010).

NPPES Registry Identity

NPI1922329663
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameKATHERINE M CALLAGHANCredential: M.D.
Location Address328 SHREWSBURY STWorcester, MA 01604-5465
Mailing Address328 Shrewsbury StWorcester, MA 01604-5465
Fax(508) 752-1392
Sole ProprietorNo
Medical School CMSUniversity Of Massachusetts Medical SchoolGraduated 2010
Enumeration DateJune 17, 2010
Last NPPES UpdateJuly 7, 20263 updates tracked since enumeration
NPPES CertifiedJuly 7, 2026
NPI 1922329663 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License Licensed in MA · 259143
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
328 SHREWSBURY ST, Worcester, MA 01604

Other Identifiers 1

Medicaid110099641AMA

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Katherine M Callaghan M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7315178571
PECOS Enrollment IDI20140827001355
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
13 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Umass Memorial Medical Center/University Campus

Acute Care Hospitals · Worcester, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220163
Location55 Lake Avenue NorthWorcester, MA 01655 · Worcester County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01604 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$134.47 typical visit price
range $58.86 – $177.36
Typical copayment $33.61 (range $14.71 – $44.34)
Most-billed visit code 99204
Established Patient
$73.22 typical visit price
range $19.11 – $144.84
Typical copayment $18.30 (range $4.77 – $36.21)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.02/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality78.09
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Psychiatry & Neurology (Psychiatry)
328 SHREWSBURY ST, # 252
WORCESTER, MA 01604
Obstetrics & Gynecology
328 SHREWSBURY ST, STE 100
WORCESTER, MA 01604
Obstetrics & Gynecology
328 SHREWSBURY ST, SUITE 100
WORCESTER, MA 01604
Obstetrics & Gynecology
328 SHREWSBURY ST, STE 100
WORCESTER, MA 01604
Obstetrics & Gynecology
328 SHREWSBURY ST, STE 100
WORCESTER, MA 01604
Obstetrics & Gynecology
328 SHREWSBURY ST
WORCESTER, MA 01604
Family Medicine
328 SHREWSBURY ST
WORCESTER, MA 01604
Obstetrics & Gynecology
328 SHREWSBURY ST, SUITE 100
WORCESTER, MA 01604

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Katherine Callaghan's NPI number?

The NPI number for Katherine Callaghan is 1922329663. It was assigned to this individual provider in the NPPES registry on June 17, 2010.

Where is Katherine Callaghan located?

Katherine Callaghan practices at 328 Shrewsbury St, Worcester, MA 01604. The listed phone number is (508) 755-4861.

What is Katherine Callaghan's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Katherine Callaghan enrolled in Medicare?

Yes. Katherine Callaghan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Katherine Callaghan accept?

Health plans from Anthem Blue Cross and Blue Shield list Katherine Callaghan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Katherine Callaghan affiliated with any hospitals?

According to CMS data, Katherine Callaghan is affiliated with Umass Memorial Medical Center/University Campus.

When was this NPI record last updated?

The NPPES record for Katherine Callaghan was last updated on July 7, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.