Gustavo A Diaz, MD - Medicare Emergency Medicine in Santa Cruz, CA

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Gustavo A Diaz, MD is a medicare enrolled "Emergency Medicine" physician in Santa Cruz, California. He went to University Of Texas Medical Branch At Galveston and graduated in 1982 and has 43 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice American Current Care Of California A Medical Corporation and his current practice location is 615 Ocean St # E1, Santa Cruz, California. You can reach out to his office (for appointments etc.) via phone at (831) 425-7991.

Gustavo A Diaz is licensed to practice in California (license number C54872) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1538122635.

Contact Information

Gustavo A Diaz, MD
615 Ocean St # E1,
Santa Cruz, CA 95060-4005
(831) 425-7991
(831) 425-7346

Map and Direction




Physician's Profile

Full NameGustavo A Diaz
GenderMale
SpecialityEmergency Medicine
Experience43 Years
Location615 Ocean St # E1, Santa Cruz, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Gustavo A Diaz attended and graduated from University Of Texas Medical Branch At Galveston in 1982
  NPI Data:
  • NPI Number: 1538122635
  • Provider Enumeration Date: 04/10/2006
  • Last Update Date: 11/11/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 1254374713
  • Enrollment ID: I20111213000435

Medical Identifiers

Medical identifiers for Gustavo A Diaz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1538122635NPI-NPPES
000000006706OtherMABMC
04-3329195OtherMANORTH AMERICAN PREFERRED
04-3329195OtherMAGREAT-WEST
102531OtherMACIGNA
2359897OtherMAAETNA
04-3329195OtherMAPHCS
04-3329195OtherMAUNICARE/GIC
04-3329195OtherMANORTHEAST HEALTHCARE ALLI
04-3329195OtherMANORTHEAST HEALTH DIRECT
04-3329195OtherMAPLAN VISTA
053006OtherMATUFTS
24922OtherMAHEALTH NEW ENGLAND
3000915MedicaidMA
438822OtherMAHARVARD PILGRIM
632919OtherMACONNECTICARE
J08576OtherMABCBS MA
04-3329195OtherMACONSOLIDATED

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 53006 (Massachusetts)Secondary
207P00000XEmergency Medicine C54872 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
American Current Care Of California A Medical Corporation579985430397

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. Gustavo A Diaz allows following entities to bill medicare on his behalf.
Entity NamePinnacle Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669557930
PECOS PAC ID: 8921081076
Enrollment ID: O20040609001432
Entity NameAmerican Current Care Of California A Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750573622
PECOS PAC ID: 5799854303
Enrollment ID: O20080522000420

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. Gustavo A Diaz 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
Gustavo A Diaz, MD
100 Wilson Rd Ste 100,
Monterey, CA 93940-7885

Ph: (831) 649-1000		Gustavo A Diaz, MD
615 Ocean St # E1,
Santa Cruz, CA 95060-4005

Ph: (831) 425-7991

Reviews and Comments


Emergency Medicine Doctors in Santa Cruz, CA

Dr. John Grady, D.O.
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Practice Location: 1555 Soquel Dr, Santa Cruz, CA 95065
Phone: 831-462-7700    Fax: 831-462-7593
Dr. Andrew Kingsley Nevitt, MD
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Richard Drucker,
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Nicholas Christian Brown,
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Alan Leland Buchwald, M.D.
Emergency Medicine
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Practice Location: 1555 Soquel Dr, Santa Cruz, CA 95065
Phone: 831-620-1156    Fax: 831-620-1156
Dr. James B Maguire, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2025 Soquel Ave, Santa Cruz, CA 95062
Phone: 831-458-5537    Fax: 831-423-1264
Dr. William Richard Hencke Jr., MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1555 Soquel Dr, Dominican Hospital Emergency Dept., Santa Cruz, CA 95065
Phone: 831-462-7730    

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.

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