William Michael Whalen Ii, MD - Medicare Pulmonary Disease in Worcester, MA

William Michael Whalen Ii, MD is a medicare enrolled "Internal Medicine - Pulmonary Disease" physician in Worcester, Massachusetts. He graduated from medical school in 2015 and has 10 years of diverse experience with area of expertise as Pulmonary Disease. He is a member of the group practice Umass Memorial Medical Group Inc, Kings Physician Services Pc, Weill Medical College Of Cornell and his current practice location is 55 Lake Ave N, Worcester, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (508) 334-1975.

William Michael Whalen Ii is licensed to practice in Massachusetts (license number 273430) 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 1912386871.

Contact Information

William Michael Whalen Ii, MD
55 Lake Ave N,
Worcester, MA 01655-0002
(508) 334-1975
Not Available

Map and Direction




Physician's Profile

Full NameWilliam Michael Whalen Ii
GenderMale
SpecialityPulmonary Disease
Experience10 Years
Location55 Lake Ave N, Worcester, 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:
  • William Michael Whalen Ii graduated from medical school in 2015
  NPI Data:
  • NPI Number: 1912386871
  • Provider Enumeration Date: 05/26/2015
  • Last Update Date: 06/05/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 0749579340
  • Enrollment ID: I20180510001586

Medical Identifiers

Medical identifiers for William Michael Whalen Ii such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1912386871NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0200XInternal Medicine - Critical Care Medicine 273430 (Massachusetts)Secondary
207RP1001XInternal Medicine - Pulmonary Disease 273430 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
New York-presbyterian HospitalNew york, NYHospital
Umass Memorial Medical Center/university CampusWorcester, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Umass Memorial Medical Group Inc42845398912096
Kings Physician Services Pc0547579427592
Weill Medical College Of Cornell68007090231842

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. William Michael Whalen Ii allows following entities to bill medicare on his behalf.
Entity NamePratt Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275570319
PECOS PAC ID: 3375515661
Enrollment ID: O20040807000255

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. William Michael Whalen Ii 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
William Michael Whalen Ii, MD
Po Box 415348,
Boston, MA 02241-5348

Ph: (800) 225-8885
William Michael Whalen Ii, MD
55 Lake Ave N,
Worcester, MA 01655-0002

Ph: (508) 334-1975

Reviews and Comments


Internal Medicine Doctors in Worcester, MA

Dr. Adepeju Gbadebo Champion, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 55 Lake Ave N, Worcester, MA 01655
Phone: 508-334-2731    Fax: 774-442-4672
Madaiah Lokeshwari, M.D.
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Practice Location: 123 Summer St, Worcester, MA 01608
Phone: 508-363-6849    
Sowmya Korapati,
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Practice Location: 55 Lake Ave N, Worcester, MA 01655
Phone: 508-334-3550    Fax: 774-442-6715
Lihong Huo, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 123 Summer St Ste 655, Worcester, MA 01608
Phone: 888-277-0071    Fax: 508-363-9037
Dr. Herman Anthony Carneiro, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 55 Lake Ave N, Worcester, MA 01655
Phone: 508-334-3452    
Irma Nadeem Hashmi, DO
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Medicare: Accepting Medicare Assignments
Practice Location: 55 Lake Ave N, Worcester, MA 01655
Phone: 508-334-1000    
Dr. Madhav Sharma, MD
Pulmonary Disease
Medicare: Accepting Medicare Assignments
Practice Location: 123 Summer St, Worcester, MA 01608
Phone: 508-363-5438    

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.

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