Dr Matthew Nienaber, DO - Medicare Internal Medicine in Santa Monica, CA

Dr Matthew Nienaber, DO is a medicare enrolled "Internal Medicine" physician in Santa Monica, California. He graduated from medical school in 2014 and has 10 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Providence Saint Johns Medical Foundation and his current practice location is 1821 Wilshire Blvd Ste 100, Santa Monica, California. You can reach out to his office (for appointments etc.) via phone at (310) 575-3100.

Dr Matthew Nienaber is licensed to practice in California (license number 20A14759) 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 1033535182.

Contact Information

Dr Matthew Nienaber, DO
1821 Wilshire Blvd Ste 100,
Santa Monica, CA 90403-5627
(310) 575-3100
(310) 575-3102



Physician's Profile

Full NameDr Matthew Nienaber
GenderMale
SpecialityInternal Medicine
Experience10 Years
Location1821 Wilshire Blvd Ste 100, Santa Monica, 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:
  • Dr Matthew Nienaber graduated from medical school in 2014
  NPI Data:
  • NPI Number: 1033535182
  • Provider Enumeration Date: 03/13/2014
  • Last Update Date: 04/19/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 8224301346
  • Enrollment ID: I20170911003106

Medical Identifiers

Medical identifiers for Dr Matthew Nienaber such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1033535182NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 20A14759 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Providence Little Company Of Mary Home HealthTorrance, CAHome health agency
Providence Saint John's Health CenterSanta monica, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Providence Saint Johns Medical Foundation0840548624315

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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 Matthew Nienaber allows following entities to bill medicare on his behalf.
Entity NameProvidence Saint Johns Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518438712
PECOS PAC ID: 0840548624
Enrollment ID: O20180810000904

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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 Matthew Nienaber 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 Matthew Nienaber, DO
1821 Wilshire Blvd Ste 100,
Santa Monica, CA 90403-5627

Ph: (310) 575-3100
Dr Matthew Nienaber, DO
1821 Wilshire Blvd Ste 100,
Santa Monica, CA 90403-5627

Ph: (310) 575-3100

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Internal Medicine Doctors in Santa Monica, CA

Irawan Susanto, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1223 16th St, Suite 3400, Santa Monica, CA 90404
Phone: 310-449-0939    Fax: 424-259-7790
Louis Ravitz, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2336 Santa Monica Blvd, Suite 207, Santa Monica, CA 90404
Phone: 310-828-9311    Fax: 310-453-8533
Janet Winikoff, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2001 Santa Monica Blvd Ste 860, Santa Monica, CA 90404
Phone: 310-828-3209    Fax: 310-828-5165
Dr. Sean Dooley, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2121 Santa Monica Blvd, Santa Monica, CA 90404
Phone: 323-829-8745    
Lorraine Anderson, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1245 16th St Ste 303, Santa Monica, CA 90404
Phone: 310-481-4646    Fax: 310-899-7599
Dr. Colleen Lucy Channick, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1223 16th St Ste 3400, Santa Monica, CA 90404
Phone: 310-449-0939    
Carol Yukiko Nishikubo, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2001 Santa Monica Blvd Ste 560w, Santa Monica, CA 90404
Phone: 310-453-5654    Fax: 310-453-6885

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