Nathan L Lewis, MD - Medicare Internal Medicine in Pasadena, CA

Nathan L Lewis, MD is a medicare enrolled "Internal Medicine" physician in Pasadena, California. He went to Loma Linda University School Of Medicine and graduated in 1978 and has 46 years of diverse experience with area of expertise as Internal Medicine. His current practice location is 675 S Arroyo Pkwy Ste 310, Pasadena, California. You can reach out to his office (for appointments etc.) via phone at (626) 796-8181.

Nathan L Lewis is licensed to practice in California (license number G40994) 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 1912923004.

Contact Information

Nathan L Lewis, MD
675 S Arroyo Pkwy Ste 310,
Pasadena, CA 91105
(626) 796-8181
(626) 796-1874

Map and Direction




Physician's Profile

Full NameNathan L Lewis
GenderMale
SpecialityInternal Medicine
Experience46 Years
Location675 S Arroyo Pkwy Ste 310, Pasadena, 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:
  • Nathan L Lewis attended and graduated from Loma Linda University School Of Medicine in 1978
  NPI Data:
  • NPI Number: 1912923004
  • Provider Enumeration Date: 07/14/2006
  • Last Update Date: 10/23/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 3173692498
  • Enrollment ID: I20101203000350

Medical Identifiers

Medical identifiers for Nathan L Lewis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1912923004NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G40994 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Huntington Memorial HospitalPasadena, CAHospital
Rose Garden Healthcare CenterPasadena, CANursing home
Two Palms Nursing Center, IncPasadena, CANursing home

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. Nathan L Lewis allows following entities to bill medicare on his behalf.
Entity NameNl Lewis Md A Professional Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1790087096
PECOS PAC ID: 0547457590
Enrollment ID: O20101203000299

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. Nathan L Lewis 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
Nathan L Lewis, MD
675 S Arroyo Pkwy Ste 310,
Pasadena, CA 91105-3264

Ph: (626) 796-8181
Nathan L Lewis, MD
675 S Arroyo Pkwy Ste 310,
Pasadena, CA 91105

Ph: (626) 796-8181

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.