Douglas Stewart Fritz, MD - Medicare Internal Medicine in Lynnfield, MA

Douglas Stewart Fritz, MD is a medicare enrolled "Internal Medicine" physician in Lynnfield, Massachusetts. He went to Albany Medical College Of Union University and graduated in 2007 and has 17 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Mass General Brigham Medical Group, Inc. and his current practice location is 6 Kimball Ln Ste 120, Lahey Lynnfield, Lynnfield, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (781) 213-4040.

Douglas Stewart Fritz is licensed to practice in Massachusetts (license number 248242) 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 1336360742.

Contact Information

Douglas Stewart Fritz, MD
6 Kimball Ln Ste 120, Lahey Lynnfield,
Lynnfield, MA 01940-2667
(781) 213-4040
(781) 213-5064

Map and Direction




Physician's Profile

Full NameDouglas Stewart Fritz
GenderMale
SpecialityInternal Medicine
Experience17 Years
Location6 Kimball Ln Ste 120, Lynnfield, 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:
  • Douglas Stewart Fritz attended and graduated from Albany Medical College Of Union University in 2007
  NPI Data:
  • NPI Number: 1336360742
  • Provider Enumeration Date: 05/01/2007
  • Last Update Date: 06/20/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 5395903934
  • Enrollment ID: I20230116000653

Medical Identifiers

Medical identifiers for Douglas Stewart Fritz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1336360742NPI-NPPES
110091141AMedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 248242 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Wentworth-douglass HospitalDover, NHHospital
Lowell General HospitalLowell, MAHospital
Lahey Hospital & Medical Center, BurlingtonBurlington, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mass General Brigham Medical Group, Inc.397198710887

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. Douglas Stewart Fritz allows following entities to bill medicare on his behalf.
Entity NameMass General Brigham Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083360200
PECOS PAC ID: 3971987108
Enrollment ID: O20220907001020

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. Douglas Stewart Fritz 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
Douglas Stewart Fritz, MD
Lahey Clinic, 41 Mall Road,
Burlington, MA 01805-0001

Ph: (781) 213-4040
Douglas Stewart Fritz, MD
6 Kimball Ln Ste 120, Lahey Lynnfield,
Lynnfield, MA 01940-2667

Ph: (781) 213-4040

Reviews and Comments


Internal Medicine Doctors in Lynnfield, MA

Dr. Joseph Edward Kaye, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 210 Broadway Ste 202, Lynnfield, MA 01940
Phone: 781-933-4200    Fax: 781-933-1553
Bhagwan Dass Gupta, MD FACC
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: Post Office Square Lynnfield Med Bldg, Lynnfield, MA 01940
Phone: 781-599-0594    Fax: 781-581-6540

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.