Dr Marcia Tonnesen, MD - Medicare Dermatology in East Setauket, NY

Dr Marcia Tonnesen, MD is a medicare enrolled "Dermatology" physician in East Setauket, New York. She went to University Of Utah School Of Medicine and graduated in 1973 and has 51 years of diverse experience with area of expertise as Dermatology. She is a member of the group practice Stony Brook Dermatology Associates, University Faculty Practice Corp and her current practice location is 181 N Belle Mead Rd, East Setauket, New York. You can reach out to her office (for appointments etc.) via phone at (631) 444-4200.

Dr Marcia Tonnesen is licensed to practice in New York (license number 181378) 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 1205883238.

Contact Information

Dr Marcia Tonnesen, MD
181 N Belle Mead Rd,
East Setauket, NY 11733-3495
(631) 444-4200
Not Available

Map and Direction




Physician's Profile

Full NameDr Marcia Tonnesen
GenderFemale
SpecialityDermatology
Experience51 Years
Location181 N Belle Mead Rd, East Setauket, New York
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:
  • Dr Marcia Tonnesen attended and graduated from University Of Utah School Of Medicine in 1973
  NPI Data:
  • NPI Number: 1205883238
  • Provider Enumeration Date: 05/27/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 5597897231
  • Enrollment ID: I20100716000019

Medical Identifiers

Medical identifiers for Dr Marcia Tonnesen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1205883238NPI-NPPES
5030064OtherNYAETNA
61F93OtherNYEMPIRE BC/BS
01198109MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207N00000XDermatology 181378 (New York)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Stony Brook Dermatology Associates, University Faculty Practice Corp397149320611

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. Dr Marcia Tonnesen allows following entities to bill medicare on her behalf.
Entity NameStony Brook Dermatology Associates, University Faculty Practice Corpor
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497700819
PECOS PAC ID: 3971493206
Enrollment ID: O20040318001322

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. Dr Marcia Tonnesen 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
Dr Marcia Tonnesen, MD
Po Box 1559,
Stony Brook, NY 11790-0989

Ph: (631) 444-4200
Dr Marcia Tonnesen, MD
181 N Belle Mead Rd,
East Setauket, NY 11733-3495

Ph: (631) 444-4200

Reviews and Comments


Dermatology Doctors in East Setauket, NY

Dr. Richard Clark, M.D.
Dermatology
Medicare: Accepting Medicare Assignments
Practice Location: 181 N Belle Mead Rd, East Setauket, NY 11733
Phone: 631-444-4200    
Dr. Robert Seth Levine, DO
Dermatology
Medicare: Accepting Medicare Assignments
Practice Location: 4 Technology Dr, East Setauket, NY 11733
Phone: 631-689-3188    Fax: 732-244-2804
Dr. Tara Kaufmann, M.D.
Dermatology
Medicare: Accepting Medicare Assignments
Practice Location: 181 N. Belle Mead Road, Suite #5, East Setauket, NY 11733
Phone: 516-255-0684    
Dr. Leonard Kristal, M.D.
Dermatology
Medicare: Not Enrolled in Medicare
Practice Location: 181 N Belle Mead Rd, East Setauket, NY 11733
Phone: 631-444-4200    

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.