Dr Nathan James Simarro, DDS - Medicare Dentist in Antioch, CA

Dr Nathan James Simarro, DDS is a medicare enrolled "Dentist - Dental Public Health" provider in Antioch, California. His current practice location is 5201 Deer Valley Road Suite #3b, Antioch, California. You can reach out to his office (for appointments etc.) via phone at (925) 723-9090.

Dr Nathan James Simarro is licensed to practice in California (license number 63666) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1144637661.

Contact Information

Dr Nathan James Simarro, DDS
5201 Deer Valley Road Suite #3b,
Antioch, CA 94531
(925) 723-9090
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameDr Nathan James Simarro
GenderMale
SpecialityDentist - Dental Public Health
Location5201 Deer Valley Road Suite #3b, Antioch, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1144637661
  • Provider Enumeration Date: 07/16/2014
  • Last Update Date: 02/18/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 6406157882
  • Enrollment ID: I20151209002553

Medical Identifiers

Medical identifiers for Dr Nathan James Simarro such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1144637661NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
122300000XDentist 63666 (California)Secondary
1223D0001XDentist - Dental Public Health 63666 (California)Primary
1223G0001XDentist - General Practice 63666 (California)Secondary

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 Nathan James Simarro 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 Nathan James Simarro, DDS
5201 Deer Valley Road Suite #3b,
Antioch, CA 94531

Ph: (925) 723-9090
Dr Nathan James Simarro, DDS
5201 Deer Valley Road Suite #3b,
Antioch, CA 94531

Ph: (925) 723-9090

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.