Corey S Maas, MD - Medicare Surgery in San Francisco, CA

Corey S Maas, MD is a medicare enrolled "Surgery - Plastic And Reconstructive Surgery" physician in San Francisco, California. His current practice location is 2400 Clay St, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 567-7000.

Corey S Maas is licensed to practice in California (license number G71163) 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 1851469282.

Contact Information

Corey S Maas, MD
2400 Clay St,
San Francisco, CA 94115-1809
(415) 567-7000
(415) 567-7011

Map and Direction




Physician's Profile

Full NameCorey S Maas
GenderMale
SpecialitySurgery - Plastic And Reconstructive Surgery
Location2400 Clay St, San Francisco, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1851469282
  • Provider Enumeration Date: 12/02/2006
  • Last Update Date: 11/17/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 5496984494
  • Enrollment ID: I20140218000506

Medical Identifiers

Medical identifiers for Corey S Maas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1851469282NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2086S0122XSurgery - Plastic And Reconstructive Surgery G71163 (California)Primary

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. Corey S Maas 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
Corey S Maas, MD
2400 Clay St,
San Francisco, CA 94115-1809

Ph: (415) 567-7000
Corey S Maas, MD
2400 Clay St,
San Francisco, CA 94115-1809

Ph: (415) 567-7000

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).

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