May Casazza, PNP - Medicare Nurse Practitioner in Palo Alto, CA

May Casazza, PNP is a medicare enrolled "Nurse Practitioner" in Palo Alto, California. Her current practice location is 725 Welch Rd, Palo Alto, California. You can reach out to her office (for appointments etc.) via phone at (650) 497-8000.

May Casazza is licensed to practice in California (license number 21081) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1063772887.

Contact Information

May Casazza, PNP
725 Welch Rd,
Palo Alto, CA 94304-1601
(650) 497-8000
Not Available

Map and Direction




Provider's Profile

Full NameMay Casazza
GenderFemale
SpecialityNurse Practitioner
Location725 Welch Rd, Palo Alto, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1063772887
  • Provider Enumeration Date: 05/26/2012
  • Last Update Date: 05/23/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 7618124264
  • Enrollment ID: I20120904000485

Medical Identifiers

Medical identifiers for May Casazza such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063772887NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363L00000XNurse Practitioner 21081 (California)Primary
363LP0222XNurse Practitioner - Pediatrics, Critical Care 21081 (California)Secondary

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. May Casazza allows following entities to bill medicare on her behalf.
Entity NameStanford Health Care
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437292927
PECOS PAC ID: 6709797491
Enrollment ID: O20031124000348
Entity NameLpch Medical Group Div Of Lucile
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417907940
PECOS PAC ID: 0840298543
Enrollment ID: O20061113000232

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. May Casazza 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
May Casazza, PNP
725 Welch Rd,
Palo Alto, CA 94304-1601

Ph: (650) 497-8000
May Casazza, PNP
725 Welch Rd,
Palo Alto, CA 94304-1601

Ph: (650) 497-8000

Reviews and Comments


Nurse Practitioner Nurses in Palo Alto, CA

Wendy Leigh Adams, ARNP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 725 Welch Rd, Palo Alto, CA 94304
Phone: 650-497-8000    
Mr. Christopher Gerard Gonzales, NP-C
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 3801 Miranda Ave, Emergency Department, Palo Alto, CA 94304
Phone: 650-493-5000    
Sarah Davidson, NP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 212 High St, Palo Alto, CA 94301
Phone: 415-663-5584    
Erin Danielle Herse, NP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 725 Welch Rd, Palo Alto, CA 94304
Phone: 650-736-7359    Fax: 650-497-8041
Christian Laparan, FNP-C
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 795 El Camino Real, Palo Alto, CA 94301
Phone: 650-853-2977    
Theresa V Pittman, NP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 795 El Camino Real, Palo Alto, CA 94301
Phone: 650-321-4121    
Audrey Fong, CPNP
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 725 Welch Rd, Palo Alto, CA 94304
Phone: 650-497-8000    Fax: 650-498-5840

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.