Dr Keith Garrison, MD - Medicare Internal Medicine in Denver, CO

  1. Home
  2. Gastroenterology
  3. CO
  4. Denver
Dr Keith Garrison, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Denver, Colorado. He graduated from medical school in 2020 and has 6 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Sunset Heights Physician Services Pa, Hospitalist Medicine Physicians Of Texas Pllc and his current practice location is 2535 S Downing St Ste 410, Denver, Colorado. You can reach out to his office (for appointments etc.) via phone at (303) 260-2740.

Dr Keith Garrison is licensed to practice in Colorado (license number DR.0076997) 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 1245868637.

Contact Information

Dr Keith Garrison, MD
2535 S Downing St Ste 410,
Denver, CO 80210-5851
(303) 260-2740
(303) 260-2741

Map and Direction




Physician's Profile

Full NameDr Keith Garrison
GenderMale
SpecialityInternal Medicine
Experience6 Years
Location2535 S Downing St Ste 410, 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 Keith Garrison graduated from medical school in 2020
  NPI Data:
  • NPI Number: 1245868637
  • Provider Enumeration Date: 03/31/2020
  • Last Update Date: 07/13/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 7214475771
  • Enrollment ID: I20240814004520

Medical Identifiers

Medical identifiers for Dr Keith Garrison such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1245868637NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine T7562 (Texas)Secondary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary
207RG0100XInternal Medicine - Gastroenterology DR.0076997 (Colorado)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
The Hospitals Of Providence Memorial CampusEl paso, TXHospital
Sierra Medical CenterEl paso, TXHospital
The Hospitals Of Providence East CampusEl paso, TXHospital
University Medical Center Of El PasoEl paso, TXHospital
Christus Southern New MexicoAlamogordo, NMHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sunset Heights Physician Services Pa983068370561
Hospitalist Medicine Physicians Of Texas Pllc3476688318685

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 Keith Garrison allows following entities to bill medicare on his behalf.
Entity NameHospitalist Medicine Physicians of Texas PLLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629307095
PECOS PAC ID: 3476688318
Enrollment ID: O20100317001021
Entity NameSunset Heights Physician Services PA
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215818737
PECOS PAC ID: 9830683705
Enrollment ID: O20251209003251

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 Keith Garrison 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 Keith Garrison, MD
2535 S Downing St Ste 410,
Denver, CO 80210-5851

Ph: (303) 260-2740		Dr Keith Garrison, MD
2535 S Downing St Ste 410,
Denver, CO 80210-5851

Ph: (303) 260-2740

Reviews and Comments


Internal Medicine Doctors in Denver, CO

Katrina Wagoner-hursh, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 1835 Franklin St, Denver, CO 80218
Phone: 303-338-4545    
Emily Martin Jones, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 8111 E Lowry Blvd, Denver, CO 80230
Phone: 720-848-0000    
Dr. Jesus Heliodoro Hermosillo Rodriguez, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2045 N Franklin St, Denver, CO 80205
Phone: 303-338-4545    
Philip Andreoli, D.O.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 777 Bannock St, Denver, CO 80204
Phone: 303-436-4949    Fax: 303-602-5056
Margaret Hay, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1601 E 19th Ave Ste 3100, Denver, CO 80218
Phone: 303-863-0300    Fax: 303-863-7014
Morgan Edwards-fligner, MD
Gastroenterology
Medicare: May Accept Medicare Assignments
Practice Location: 8111 E Lowry Blvd Ste 120, Denver, CO 80230
Phone: 720-848-9500    
Dr. Alan W Burgess, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 1601 E 19th Ave Ste 6000, Denver, CO 80218
Phone: 303-861-7001    Fax: 303-861-8624

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.