Katrina Klaus, DO - Medicare Internal Medicine in Wellesley, MA

Katrina Klaus, DO is a medicare enrolled "Internal Medicine" physician in Wellesley, Massachusetts. She went to Midwestern University, Chicago College Of Osteopathic Med and graduated in 2004 and has 20 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Atrius Health Inc and her current practice location is 230 Worcester St, Internal Medicine, Wellesley, Massachusetts. You can reach out to her office (for appointments etc.) via phone at (781) 431-5420.

Katrina Klaus is licensed to practice in Massachusetts (license number 230582) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1295841427.

Contact Information

Katrina Klaus, DO
230 Worcester St, Internal Medicine,
Wellesley, MA 02481-5420
(781) 431-5420
(781) 431-5465

Map and Direction




Physician's Profile

Full NameKatrina Klaus
GenderFemale
SpecialityInternal Medicine
Experience20 Years
Location230 Worcester St, Wellesley, Massachusetts
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Katrina Klaus attended and graduated from Midwestern University, Chicago College Of Osteopathic Med in 2004
  NPI Data:
  • NPI Number: 1295841427
  • Provider Enumeration Date: 08/21/2006
  • Last Update Date: 11/16/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 9032282637
  • Enrollment ID: I20080715000569

Medical Identifiers

Medical identifiers for Katrina Klaus such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1295841427NPI-NPPES
2135086MedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine RT 1326 (New Hampshire)Secondary
207R00000XInternal Medicine 230582 (Massachusetts)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Atrius Health Inc47895886411130

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. Katrina Klaus allows following entities to bill medicare on her behalf.
Entity NameAtrius Health Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871639914
PECOS PAC ID: 4789588641
Enrollment ID: O20031121000582

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. Katrina Klaus 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
Katrina Klaus, DO
230 Worcester St, Internal Medicine,
Wellesley, MA 02481-5420

Ph: (781) 431-5420
Katrina Klaus, DO
230 Worcester St, Internal Medicine,
Wellesley, MA 02481-5420

Ph: (781) 431-5420

Reviews and Comments


Internal Medicine Doctors in Wellesley, MA

Deborah Hadley, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 195 Worcester St, Suite 102, Wellesley, MA 02481
Phone: 617-219-1510    Fax: 617-219-1512
Dr. Burt Whitney Hall, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 65 Walnut St, Suite 590, Wellesley, MA 02481
Phone: 781-237-3395    Fax: 781-237-3397
Ida P Gorenburg, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 230 Worcester St, Internal Medicine, Wellesley, MA 02481
Phone: 781-431-5220    Fax: 781-431-5526
James S Sidel, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 4 Falmouth Rd, Wellesley, MA 02481
Phone: 781-237-3057    
David John Wenzel, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: Marino Center For Progressive Health, 372 Washington Street, Wellesley, MA 02481
Phone: 781-235-5200    Fax: 781-235-1103
Charles C Pao, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 40 Walnut Street, Suite 102, Wellesley, MA 02481
Phone: 781-943-3000    Fax: 781-943-3037
Meghan S. Garcia Webb, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 372 Washington St, Wellesley, MA 02481
Phone: 781-431-1200    

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.