Myrna Ayde Castelazo, MD - Medicare Diagnostic Radiology in Pleasanton, CA

  1. Home
  2. Radiology
  3. CA
  4. Pleasanton
Myrna Ayde Castelazo, MD is a medicare enrolled "Radiology - Diagnostic Radiology" physician in Pleasanton, California. She went to University Of Texas Southwestern Medical School At Dallas and graduated in 2013 and has 12 years of diverse experience with area of expertise as Diagnostic Radiology. She is a member of the group practice Southwest Medical Imaging Pa, Stanford Health Care, Southwest Medical Imaging Pa and her current practice location is 5555 W Las Positas Blvd, Pleasanton, California. You can reach out to her office (for appointments etc.) via phone at (925) 416-6789.

Myrna Ayde Castelazo is licensed to practice in California (license number A133913) 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 1407290513.

Contact Information

Myrna Ayde Castelazo, MD
5555 W Las Positas Blvd,
Pleasanton, CA 94588-4000
(925) 416-6789
Not Available

Map and Direction




Physician's Profile

Full NameMyrna Ayde Castelazo
GenderFemale
SpecialityDiagnostic Radiology
Experience12 Years
Location5555 W Las Positas Blvd, Pleasanton, 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:
  • Myrna Ayde Castelazo attended and graduated from University Of Texas Southwestern Medical School At Dallas in 2013
  NPI Data:
  • NPI Number: 1407290513
  • Provider Enumeration Date: 04/19/2013
  • Last Update Date: 05/12/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 7719241041
  • Enrollment ID: I20180514000617

Medical Identifiers

Medical identifiers for Myrna Ayde Castelazo such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1407290513NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0202XRadiology - Diagnostic Radiology A133913 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Midland Memorial HospitalMidland, TXHospital
Stanford Health Care - ValleycarePleasanton, CAHospital
Medical Center HospitalOdessa, TXHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Southwest Medical Imaging Pa468856458617
Stanford Health Care67097974912771
Southwest Medical Imaging Pa468856458617

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. Myrna Ayde Castelazo 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 NameBay Imaging Consultants Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356597637
PECOS PAC ID: 9537069125
Enrollment ID: O20040110000189
Entity NameJohn Muir Magnetic Imaging Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235184110
PECOS PAC ID: 9032019625
Enrollment ID: O20040110000222
Entity NameUniversity Healthcare Alliance
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760531198
PECOS PAC ID: 6305748799
Enrollment ID: O20040126000292
Entity NameMichael P Sherman Md Phd A Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831201912
PECOS PAC ID: 9537113212
Enrollment ID: O20050304000741
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
Entity NameSouthwest Medical Imaging Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538134788
PECOS PAC ID: 4688564586
Enrollment ID: O20141028000288
Entity NameMagnetic Imaging Affiliates Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487040770
PECOS PAC ID: 5496066961
Enrollment ID: O20150624002629

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. Myrna Ayde Castelazo 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
Myrna Ayde Castelazo, MD
5555 W Las Positas Blvd,
Pleasanton, CA 94588-4000

Ph: (925) 416-6789		Myrna Ayde Castelazo, MD
5555 W Las Positas Blvd,
Pleasanton, CA 94588-4000

Ph: (925) 416-6789

Reviews and Comments


Radiology Doctors in Pleasanton, CA

Brooke Caldwell, M.D.
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 5725 W Las Positas Blvd, Pleasanton, CA 94588
Phone: 925-416-6789    Fax: 925-416-6758
Priscilla Dik-chin Wong, MD
Radiology
Medicare: Medicare Enrolled
Practice Location: 5555 W Las Positas Blvd, Pleasanton, CA 94588
Phone: 925-416-3544    
Ralph Tinghan Ho, MD
Radiology
Medicare: May Accept Medicare Assignments
Practice Location: 5555 W Las Positas Blvd, Pleasanton, CA 94588
Phone: 925-416-3540    
Ashley Caitlin Altman, MD
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 5555 W Las Positas Blvd, Pleasanton, CA 94588
Phone: 925-416-3544    

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.