Charles W Cahill, MD - Medicare Obstetrics/gynecology in Westfield, MA

Charles W Cahill, MD is a medicare enrolled "Obstetrics & Gynecology - Gynecology" physician in Westfield, Massachusetts. He graduated from medical school in 1974 and has 50 years of diverse experience with area of expertise as Obstetrics/gynecology. He is a member of the group practice Valley Women's Health Group, Llc and his current practice location is 57 Union St, Westfield, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (413) 831-7960.

Charles W Cahill is licensed to practice in Massachusetts (license number 38657) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1366441602.

Contact Information

Charles W Cahill, MD
57 Union St,
Westfield, MA 01085-2658
(413) 831-7960
(413) 568-1079

Map and Direction




Physician's Profile

Full NameCharles W Cahill
GenderMale
SpecialityObstetrics/gynecology
Experience50 Years
Location57 Union St, Westfield, Massachusetts
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Charles W Cahill graduated from medical school in 1974
  NPI Data:
  • NPI Number: 1366441602
  • Provider Enumeration Date: 07/19/2005
  • Last Update Date: 07/10/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 6406804137
  • Enrollment ID: I20120330000378

Medical Identifiers

Medical identifiers for Charles W Cahill such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1366441602NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207VG0400XObstetrics & Gynecology - Gynecology 38657 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Baystate Medical CenterSpringfield, MAHospital
Baystate Noble HospitalWestfield, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Valley Women's Health Group, Llc92341870637

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Charles W Cahill allows following entities to bill medicare on his behalf.
Entity NameBaystate Medical Practices Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548205909
PECOS PAC ID: 5991602971
Enrollment ID: O20040225000080
Entity NameValley Women's Health Group, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497978019
PECOS PAC ID: 9234187063
Enrollment ID: O20050110000008

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Charles W Cahill is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Charles W Cahill, MD
280 Chestnut Street, 2nd Floor,
Springfield, MA 01199-1001

Ph: (413) 794-5700
Charles W Cahill, MD
57 Union St,
Westfield, MA 01085-2658

Ph: (413) 831-7960

Reviews and Comments


Obstetrics & Gynecology Doctors in Westfield, MA

Natalie Beth Wright, DO
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 94 N Elm St, Ste 206, Westfield, MA 01085
Phone: 413-572-4488    Fax: 413-572-4490
Jillian A Dodge, DO
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 57 Union Street, Westfield, MA 01085
Phone: 413-831-7960    Fax: 413-568-1079
Dr. Robert S Wool, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 65 Springfield Rd, Ste 2, Westfield, MA 01085
Phone: 413-562-8306    Fax: 413-568-5678
Samantha Mcvay, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 140 Southampton Rd, Westfield, MA 01085
Phone: 413-534-2826    Fax: 413-535-2829
Lisa L. Stephens, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 395 Southampton Rd, Westfield, MA 01085
Phone: 413-533-2900    Fax: 413-568-4634

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.