Dr Martha Sue Klassen, PSYD, BCBA - Medicare Psychologist in Los Alamitos, CA

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Dr Martha Sue Klassen, PSYD, BCBA is a medicare enrolled "Psychologist - Clinical" provider in Los Alamitos, California. She graduated from medical school in 2010 and has 16 years of diverse experience with area of expertise as Clinical Psychologist. She is a member of the group practice Jodie Knott, Phd Psychological Consulting, Inc and her current practice location is 5212 Katella Ave Ste 104, Los Alamitos, California. You can reach out to her office (for appointments etc.) via phone at (714) 490-3428.

Dr Martha Sue Klassen is licensed to practice in California (license number PSY29865) 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 1700135548.

Contact Information

Dr Martha Sue Klassen, PSYD, BCBA
5212 Katella Ave Ste 104,
Los Alamitos, CA 90720-6829
(714) 490-3428
(562) 493-1684

Map and Direction




Healthcare Provider's Profile

Full NameDr Martha Sue Klassen
GenderFemale
SpecialityClinical Psychologist
Experience16 Years
Location5212 Katella Ave Ste 104, Los Alamitos, 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:
  • Dr Martha Sue Klassen graduated from medical school in 2010
  NPI Data:
  • NPI Number: 1700135548
  • Provider Enumeration Date: 09/07/2012
  • Last Update Date: 03/21/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 7315202025
  • Enrollment ID: I20181109001089

Medical Identifiers

Medical identifiers for Dr Martha Sue Klassen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1700135548NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
103TC0700XPsychologist - Clinical PSY29865 (California)Primary
103K00000XBehavior Analyst (NU)Secondary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Jodie Knott, Phd Psychological Consulting, Inc57990988852

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 Martha Sue Klassen allows following entities to bill medicare on her behalf.
Entity NameJodie Knott, PhD Psychological Consulting, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063803393
PECOS PAC ID: 5799098885
Enrollment ID: O20150717002669

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 Martha Sue Klassen 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 Martha Sue Klassen, PSYD, BCBA
5212 Katella Ave Ste 104,
Los Alamitos, CA 90720-6829

Ph: (714) 490-3428		Dr Martha Sue Klassen, PSYD, BCBA
5212 Katella Ave Ste 104,
Los Alamitos, CA 90720-6829

Ph: (714) 490-3428

Reviews and Comments


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Robert L Vande Steeg, PHD
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Practice Location: 4050 Katella Ave, Ste 102, Los Alamitos, CA 90720
Phone: 562-810-2740    
Lindsay Campbell,
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Christine Colburn,
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Phone: 714-505-5832    
Dr. Jacqueline Mary Gray, PH.D.
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Practice Location: 5212 Katella Ave, Suite #202, Los Alamitos, CA 90720
Phone: 562-493-0933    Fax: 562-493-0922

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).

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