Dr John J Orrego, MD - Medicare Endocrinology in Denver, CO

Dr John J Orrego, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in Denver, Colorado. He graduated from medical school in 1989 and has 35 years of diverse experience with area of expertise as Endocrinology. He is a member of the group practice Colorado Permanente Medical Group Pc and his current practice location is 1375 E 20th Ave, Denver, Colorado. You can reach out to his office (for appointments etc.) via phone at (303) 338-4545.

Dr John J Orrego is licensed to practice in Colorado (license number 41916) 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 1891822839.

Contact Information

Dr John J Orrego, MD
1375 E 20th Ave,
Denver, CO 80205-5422
(303) 338-4545
Not Available

Map and Direction




Physician's Profile

Full NameDr John J Orrego
GenderMale
SpecialityEndocrinology
Experience35 Years
Location1375 E 20th Ave, Denver, Colorado
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:
  • Dr John J Orrego graduated from medical school in 1989
  NPI Data:
  • NPI Number: 1891822839
  • Provider Enumeration Date: 02/27/2007
  • Last Update Date: 06/14/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 9032399852
  • Enrollment ID: I20110211000316

Medical Identifiers

Medical identifiers for Dr John J Orrego such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1891822839NPI-NPPES
01136062MedicaidCO
014996OtherCOKAISER COMMERCIAL NUMBER

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism 41916 (Colorado)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Colorado Permanente Medical Group Pc12542384541156

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 John J Orrego allows following entities to bill medicare on his behalf.
Entity NameColorado Permanente Medical Group Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760599724
PECOS PAC ID: 1254238454
Enrollment ID: O20031216000640

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 John J Orrego 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 John J Orrego, MD
10350 E Dakota Ave,
Denver, CO 80247-1314

Ph: () -
Dr John J Orrego, MD
1375 E 20th Ave,
Denver, CO 80205-5422

Ph: (303) 338-4545

Reviews and Comments


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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.