Dr Gregory John Starsiak Jr, DO - Medicare Family Medicine in Thornton, CO

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Dr Gregory John Starsiak Jr, DO is a medicare enrolled "Family Medicine" physician in Thornton, Colorado. His current practice location is 4075 E 128th Ave, Thornton, Colorado. You can reach out to his office (for appointments etc.) via phone at (303) 925-4210.

Dr Gregory John Starsiak Jr is licensed to practice in Colorado (license number DR.0070915) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1578025367.

Contact Information

Dr Gregory John Starsiak Jr, DO
4075 E 128th Ave,
Thornton, CO 80241-2201
(303) 925-4210
(303) 925-4212

Map and Direction




Physician's Profile

Full NameDr Gregory John Starsiak Jr
GenderMale
SpecialityFamily Medicine
Location4075 E 128th Ave, Thornton, Colorado
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1578025367
  • Provider Enumeration Date: 04/02/2019
  • Last Update Date: 06/28/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 5092049262
  • Enrollment ID: I20230525001865

Medical Identifiers

Medical identifiers for Dr Gregory John Starsiak Jr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1578025367NPI-NPPES
0487504MedicaidOH

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine DR.0070915 (Colorado)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 Gregory John Starsiak Jr allows following entities to bill medicare on his behalf.
Entity NameCatholic Health Initiatives Colorado
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356783351
PECOS PAC ID: 8022927342
Enrollment ID: O20031215000462

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 Gregory John Starsiak Jr 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 Gregory John Starsiak Jr, DO
4075 E 128th Ave,
Thornton, CO 80241-2201

Ph: (262) 957-6648		Dr Gregory John Starsiak Jr, DO
4075 E 128th Ave,
Thornton, CO 80241-2201

Ph: (303) 925-4210

Reviews and Comments


Family Medicine Doctors in Thornton, CO

Dr. Philip Michael Henbest, D.O.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 9981 Washington St, Suite 21, Thornton, CO 80229
Phone: 303-252-0488    Fax: 303-252-1624
Dr. David Allan Landy, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3814 E 120th Ave, Thornton, CO 80233
Phone: 303-452-2046    Fax: 303-280-0942
John Davey Douthit Jr., DO
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 9981 N Washington St, Number 24, Thornton, CO 80229
Phone: 303-451-8069    Fax: 303-450-2372
Vernon Yj Lee, DO PC
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 9141 Grant St, Suite 245, Thornton, CO 80229
Phone: 303-252-0550    Fax: 303-252-9493
Stephen Wayne Cobb, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 16570 Washington St, Thornton, CO 80023
Phone: 303-689-6600    Fax: 303-689-6601
Eric Duane Barnhart, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2200 E 104 Ave, Ste 115, Thornton, CO 80233
Phone: 303-452-2766    Fax: 303-252-8694
Lauren K Ramnarine, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 8990 N. Washington, Thornton, CO 80229
Phone: 720-929-1655    Fax: 720-565-4129

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.