Welby Nielsen, DO - Medicare Psychiatry & Neurology in San Luis Obispo, CA

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Welby Nielsen, DO is a medicare enrolled "Psychiatry & Neurology - Child & Adolescent Psychiatry" physician in San Luis Obispo, California. His current practice location is 1039 Murray Ave Ste 220, San Luis Obispo, California. You can reach out to his office (for appointments etc.) via phone at (805) 250-2996.

Welby Nielsen is licensed to practice in California (license number 20A11177) 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 1962611947.

Contact Information

Welby Nielsen, DO
1039 Murray Ave Ste 220,
San Luis Obispo, CA 93405-2058
(805) 250-2996
(805) 250-2998

Map and Direction




Physician's Profile

Full NameWelby Nielsen
GenderMale
SpecialityPsychiatry & Neurology - Child & Adolescent Psychiatry
Location1039 Murray Ave Ste 220, San Luis Obispo, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1962611947
  • Provider Enumeration Date: 05/22/2007
  • Last Update Date: 03/29/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 1658549860
  • Enrollment ID: I20110713000806

Medical Identifiers

Medical identifiers for Welby Nielsen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1962611947NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry 20A11177 (California)Secondary
2084P0804XPsychiatry & Neurology - Child & Adolescent Psychiatry 20A11177 (California)Primary

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. Welby Nielsen allows following entities to bill medicare on his behalf.
Entity NameMark David Levine Md Professional Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1154697944
PECOS PAC ID: 0143478305
Enrollment ID: O20120912000548

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. Welby Nielsen 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
Welby Nielsen, DO
3835 N Freeway Blvd Ste 100,
Sacramento, CA 95834-1954

Ph: (916) 576-7900		Welby Nielsen, DO
1039 Murray Ave Ste 220,
San Luis Obispo, CA 93405-2058

Ph: (805) 250-2996

Reviews and Comments


Psychiatry & Neurology Doctors in San Luis Obispo, CA

Jason Don Crowley, M.D., M.P.H.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 2178 Johnson Ave, San Luis Obispo, CA 93401
Phone: 805-903-1905    
Helen Vafaie, DO
Psychiatry & Neurology
Medicare: Medicare Enrolled
Practice Location: 75 Benton Way, San Luis Obispo, CA 93405
Phone: 440-732-1089    
Peter F. Afsari, D.O.
Psychiatry & Neurology
Medicare: Medicare Enrolled
Practice Location: 1039 Murray Ave Ste 220, San Luis Obispo, CA 93405
Phone: 805-250-2996    Fax: 805-250-2998
Henry Abdel Malek, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: Cmc At Highway 1, San Luis Obispo, CA 93409
Phone: 805-547-7900    
Dr. Daniel Wayne Olivieri, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 964 Chorro St, Suite 2, San Luis Obispo, CA 93401
Phone: 805-543-3232    Fax: 805-547-1772
Barbara Jean Williams, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: Hwy 1, Ca Mens Colony Psychiatry Dept, San Luis Obispo, CA 93409
Phone: 805-547-7900    
John Jacob Cannell, MD
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 1411 Marsh St Ste 203, San Luis Obispo, CA 93401
Phone: 805-439-2569    Fax: 805-439-1073

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.