Margarita Guarin, MD - Medicare Pediatrics in Denver, CO

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Margarita Guarin, MD is a medicare enrolled "Pediatrics - Pediatric Pulmonology" physician in Denver, Colorado. Her current practice location is 4545 E 9th Ave, Suite 375, Denver, Colorado. You can reach out to her office (for appointments etc.) via phone at (303) 831-9853.

Margarita Guarin is licensed to practice in Colorado (license number 44186) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1023105301.

Contact Information

Margarita Guarin, MD
4545 E 9th Ave, Suite 375,
Denver, CO 80220-3901
(303) 831-9853
(303) 832-3533

Map and Direction




Physician's Profile

Full NameMargarita Guarin
GenderFemale
SpecialityPediatrics - Pediatric Pulmonology
Location4545 E 9th Ave, Denver, Colorado
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1023105301
  • Provider Enumeration Date: 10/06/2006
  • Last Update Date: 10/15/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 2365457496
  • Enrollment ID: I20191118002394

Medical Identifiers

Medical identifiers for Margarita Guarin such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1023105301NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2080P0214XPediatrics - Pediatric Pulmonology 44186 (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. Margarita Guarin allows following entities to bill medicare on her behalf.
Entity NameUniversity Of Chicago
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821048786
PECOS PAC ID: 7719899426
Enrollment ID: O20031103000094
Entity NameThe University Of Chicago Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033218128
PECOS PAC ID: 7618880766
Enrollment ID: O20031106000203
Entity NameThe Board Of Trustees Of The University Of Illinois
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1386863819
PECOS PAC ID: 3072422716
Enrollment ID: O20031112000158

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. Margarita Guarin 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
Margarita Guarin, MD
4545 E 9th Ave, Suite 375,
Denver, CO 80220-3901

Ph: (303) 831-9853		Margarita Guarin, MD
4545 E 9th Ave, Suite 375,
Denver, CO 80220-3901

Ph: (303) 831-9853

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.