William A Collazo, MD, FACC - Medicare Cardiovascular Disease (cardiology) in Oklahoma City, OK

William A Collazo, MD, FACC is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Oklahoma City, Oklahoma. He went to Baylor College Of Medicine and graduated in 1981 and has 43 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). He is a member of the group practice Ssm Health Care Of Oklahoma, Inc. and his current practice location is 1211 N Shartel Ave Ste 1006, Oklahoma City, Oklahoma. You can reach out to his office (for appointments etc.) via phone at (405) 546-7699.

William A Collazo is licensed to practice in Oklahoma (license number 17633) 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 1649290594.

Contact Information

William A Collazo, MD, FACC
1211 N Shartel Ave Ste 1006,
Oklahoma City, OK 73103-2433
(405) 546-7699
(405) 546-7795

Map and Direction




Physician's Profile

Full NameWilliam A Collazo
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience43 Years
Location1211 N Shartel Ave Ste 1006, Oklahoma City, Oklahoma
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:
  • William A Collazo attended and graduated from Baylor College Of Medicine in 1981
  NPI Data:
  • NPI Number: 1649290594
  • Provider Enumeration Date: 07/20/2006
  • Last Update Date: 01/27/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 8325934169
  • Enrollment ID: I20040226001102

Medical Identifiers

Medical identifiers for William A Collazo such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1649290594NPI-NPPES
100256940AMedicaidOK

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease 17633 (Oklahoma)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ssm Health St Anthony Hospital - Oklahoma CityOklahoma city, OKHospital
Fairview Regional Medical Center AuthorityFairview, OKHospital

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. William A Collazo allows following entities to bill medicare on his behalf.
Entity NameSsm Health Care Of Oklahoma, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033283932
PECOS PAC ID: 6709771207
Enrollment ID: O20040216000184
Entity NameWilliam A Collazo, M.d., F.a.c.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538342654
PECOS PAC ID: 3274784038
Enrollment ID: O20121105000257

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. William A Collazo 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
William A Collazo, MD, FACC
1211 N Shartel Ave Ste 1006,
Oklahoma City, OK 73103-2433

Ph: (405) 546-7699
William A Collazo, MD, FACC
1211 N Shartel Ave Ste 1006,
Oklahoma City, OK 73103-2433

Ph: (405) 546-7699

Reviews and Comments


Internal Medicine Doctors in Oklahoma City, OK

Evelyn Lorents, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 920 Sl Young Blvd, Oklahoma City, OK 73104
Phone: 405-271-5963    
Patrick Bronson Reeves, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 3366 Nw Expressway Ste 550, Oklahoma City, OK 73112
Phone: 405-942-5442    Fax: 405-942-6448
Dr. Jake Lee Evans, MD
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Practice Location: 800 Stanton L Young Blvd, Aat 6300, Oklahoma City, OK 73104
Phone: 405-271-5963    
Metri Haddaden, MD
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Medicare: Medicare Enrolled
Practice Location: 800 Stanton L Young Blvd # 8425, Oklahoma City, OK 73104
Phone: 405-271-6173    Fax: 410-554-2184
Divya Sharma Divyadarshini, MD
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 800 Stanton L Young Blvd, Oklahoma City, OK 73104
Phone: 405-271-5963    
Dr. Philip Barton Miner, Jr., M.D.
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 1000 N Lincoln Blvd, Suite 210, Oklahoma City, OK 73104
Phone: 405-271-4644    Fax: 405-271-3296
Gary Lee Worcester, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 3433 Nw 56th St, Ste 400, Oklahoma City, OK 73112
Phone: 405-947-3341    

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.