Dr Mary Elizabeth De Ferreire, PHD - Medicare Psychologist in Mcallen, TX

Dr Mary Elizabeth De Ferreire, PHD is a medicare enrolled "Psychologist - Clinical" provider in Mcallen, Texas. She graduated from medical school in 1970 and has 54 years of diverse experience with area of expertise as Clinical Psychologist. Her current practice location is 507 W. Nolana Ave., Mcallen, Texas. You can reach out to her office (for appointments etc.) via phone at (956) 688-6229.

Dr Mary Elizabeth De Ferreire is licensed to practice in Texas (license number 25118) 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 1306021555.

Contact Information

Dr Mary Elizabeth De Ferreire, PHD
507 W. Nolana Ave.,
Mcallen, TX 78504-3029
(956) 688-6229
(956) 688-6218

Map and Direction




Healthcare Provider's Profile

Full NameDr Mary Elizabeth De Ferreire
GenderFemale
SpecialityClinical Psychologist
Experience54 Years
Location507 W. Nolana Ave., Mcallen, Texas
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:
  • Dr Mary Elizabeth De Ferreire graduated from medical school in 1970
  NPI Data:
  • NPI Number: 1306021555
  • Provider Enumeration Date: 01/07/2008
  • Last Update Date: 03/22/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 2961489646
  • Enrollment ID: I20140411000705

Medical Identifiers

Medical identifiers for Dr Mary Elizabeth De Ferreire such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1306021555NPI-NPPES
P000T94L2MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
103TC0700XPsychologist - Clinical 25118 (Texas)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. Dr Mary Elizabeth De Ferreire allows following entities to bill medicare on her behalf.
Entity NameInternational And Multicultural Psychological Services, P. C.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366517914
PECOS PAC ID: 8325025000
Enrollment ID: O20040630001004

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. Dr Mary Elizabeth De Ferreire 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
Dr Mary Elizabeth De Ferreire, PHD
507 W. Nolana Ave.,
Mcallen, TX 78504-3029

Ph: (956) 688-6229
Dr Mary Elizabeth De Ferreire, PHD
507 W. Nolana Ave.,
Mcallen, TX 78504-3029

Ph: (956) 688-6229

Reviews and Comments


Psychologist in Mcallen, TX

Dr. Andrew John Bengel, PSY.D.
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Nicole M Velez Agosto,
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Paul M Loflin, PH.D.
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Dr. Jennifer H Roberts, PSY.D., M.S.
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Practice Location: 901 E. Hackberry Avenue, Va Mcallen Outpatient Clinic, Mcallen, TX 78503
Phone: 956-618-7100    

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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.

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