Larissa Nadia Larsen, MD - Medicare Dermatology in Ventura, CA

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Larissa Nadia Larsen, MD is a medicare enrolled "Dermatology" physician in Ventura, California. She graduated from medical school in 2010 and has 15 years of diverse experience with area of expertise as Dermatology. She is a member of the group practice Pacifica Dermatology, The Regents Of The University Of California and her current practice location is 6633 Telephone Rd Ste 100, Ventura, California. You can reach out to her office (for appointments etc.) via phone at (310) 644-9121.

Larissa Nadia Larsen is licensed to practice in California (license number A118359) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1063733426.

Contact Information

Larissa Nadia Larsen, MD
6633 Telephone Rd Ste 100,
Ventura, CA 93003-5569
(310) 644-9121
Not Available

Map and Direction




Physician's Profile

Full NameLarissa Nadia Larsen
GenderFemale
SpecialityDermatology
Experience15 Years
Location6633 Telephone Rd Ste 100, Ventura, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Larissa Nadia Larsen graduated from medical school in 2010
  NPI Data:
  • NPI Number: 1063733426
  • Provider Enumeration Date: 06/18/2010
  • Last Update Date: 01/04/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 0840417473
  • Enrollment ID: I20140805002621

Medical Identifiers

Medical identifiers for Larissa Nadia Larsen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063733426NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207N00000XDermatology A118359 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Pacifica Dermatology08406285334
The Regents Of The University Of California13552485841170

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. Larissa Nadia Larsen allows following entities to bill medicare on her behalf.
Entity NameThe Regents Of The University Of California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235107566
PECOS PAC ID: 1355248584
Enrollment ID: O20031223000439
Entity NameDaniel Gene Kolder Md A California Professional Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1598006652
PECOS PAC ID: 0143466870
Enrollment ID: O20130424000796
Entity NameCsi Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871909804
PECOS PAC ID: 5890916845
Enrollment ID: O20141016001930
Entity NamePacifica Dermatology
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497392492
PECOS PAC ID: 0840628533
Enrollment ID: O20200311001488

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. Larissa Nadia Larsen 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
Larissa Nadia Larsen, MD
5767 W Century Blvd Ste 400,
Los Angeles, CA 90045-5631

Ph: (310) 301-8707		Larissa Nadia Larsen, MD
6633 Telephone Rd Ste 100,
Ventura, CA 93003-5569

Ph: (310) 644-9121

Reviews and Comments


Dermatology Doctors in Ventura, CA

Thomas Joseph Mcgillis, M.D.
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Practice Location: 5206 Beckford St., Ventura, CA 93003
Phone: 805-644-4472    
Dr. Ryan D Wells, M.D.
Dermatology
Medicare: Accepting Medicare Assignments
Practice Location: 168 N Brent St Ste 403b, Ventura, CA 93003
Phone: 805-948-6920    Fax: 805-948-1501
Dr. John Hollister Thacher, M.D.
Dermatology
Medicare: Accepting Medicare Assignments
Practice Location: 227 N Dos Caminos Ave, Ventura, CA 93003
Phone: 805-648-6969    Fax: 805-648-3762
Dr. Fred Alan Werber, M.D.
Dermatology
Medicare: Not Enrolled in Medicare
Practice Location: 5955 Bridgeview Dr, Ventura, CA 93003
Phone: 805-648-1875    Fax: 805-642-1824
Robert R Jordan, M.D.
Dermatology
Medicare: Accepting Medicare Assignments
Practice Location: 3400 Loma Vista Rd, Suite 1, Ventura, CA 93003
Phone: 805-644-9321    Fax: 805-644-9320

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.