Nena Castro, CNM, RN - Medicare Midwife in San Leandro, CA

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Nena Castro, CNM, RN is a medicare enrolled "Midwife" in San Leandro, California. Her current practice location is 2500 Merced St, San Leandro, California. You can reach out to her office (for appointments etc.) via phone at (510) 454-1000.

Nena Castro is licensed to practice in California (license number 235899) 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 1649622671.

Contact Information

Nena Castro, CNM, RN
2500 Merced St,
San Leandro, CA 94577-4201
(510) 454-1000
Not Available

Map and Direction




Provider's Profile

Full NameNena Castro
GenderFemale
SpecialityMidwife
Location2500 Merced St, San Leandro, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1649622671
  • Provider Enumeration Date: 07/01/2016
  • Last Update Date: 01/03/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 5799024980
  • Enrollment ID: I20190306001023

Medical Identifiers

Medical identifiers for Nena Castro such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1649622671NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
163W00000XRegistered Nurse 201507018RN (Oregon)Secondary
163W00000XRegistered Nurse 95131605 (California)Secondary
176B00000XMidwife 235899 (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. Nena Castro allows following entities to bill medicare on her behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

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. Nena Castro 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
Nena Castro, CNM, RN
2500 Merced St,
San Leandro, CA 94577-4201

Ph: (510) 454-1000		Nena Castro, CNM, RN
2500 Merced St,
San Leandro, CA 94577-4201

Ph: (510) 454-1000

Reviews and Comments



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.