Zachary Thomas Fellows, MD - Medicare Rheumatology in Carlsbad, CA

Zachary Thomas Fellows, MD is a medicare enrolled "Internal Medicine - Rheumatology" physician in Carlsbad, California. He graduated from medical school in 2014 and has 10 years of diverse experience with area of expertise as Rheumatology. He is a member of the group practice Arthritis And Rheumatology Medical Associates Inc and his current practice location is 6120 Paseo Del Norte Ste C1, Carlsbad, California. You can reach out to his office (for appointments etc.) via phone at (760) 891-4687.

Zachary Thomas Fellows is licensed to practice in California (license number A144510) 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 1154733152.

Contact Information

Zachary Thomas Fellows, MD
6120 Paseo Del Norte Ste C1,
Carlsbad, CA 92011-1118
(760) 891-4687
(760) 684-8715

Map and Direction




Physician's Profile

Full NameZachary Thomas Fellows
GenderMale
SpecialityRheumatology
Experience10 Years
Location6120 Paseo Del Norte Ste C1, Carlsbad, California
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:
  • Zachary Thomas Fellows graduated from medical school in 2014
  NPI Data:
  • NPI Number: 1154733152
  • Provider Enumeration Date: 05/24/2014
  • Last Update Date: 07/08/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 0941580708
  • Enrollment ID: I20200619001047

Medical Identifiers

Medical identifiers for Zachary Thomas Fellows such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1154733152NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A144510 (California)Secondary
207RB0002XInternal Medicine - Obesity Medicine A144510 (California)Secondary
207RR0500XInternal Medicine - Rheumatology A144510 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
John Muir Medical Center - Walnut Creek CampusWalnut creek, CAHospital

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. Zachary Thomas Fellows allows following entities to bill medicare on his behalf.
Entity NameArthritis And Rheumatology Medical Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154403483
PECOS PAC ID: 1355329244
Enrollment ID: O20040708000413
Entity NameSynergy Rheumatology Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124893201
PECOS PAC ID: 1456794486
Enrollment ID: O20240207001131

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. Zachary Thomas Fellows 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
Zachary Thomas Fellows, MD
6120 Paseo Del Norte Ste C1,
Carlsbad, CA 92011-1118

Ph: (760) 891-4687
Zachary Thomas Fellows, MD
6120 Paseo Del Norte Ste C1,
Carlsbad, CA 92011-1118

Ph: (760) 891-4687

Reviews and Comments


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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.