Dr Dennis Andrew Buck, DO - Medicare Internal Medicine in Pagosa Springs, CO

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Dr Dennis Andrew Buck, DO is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Pagosa Springs, Colorado. His current practice location is 95 S Pagosa Blvd, Pagosa Springs, Colorado. You can reach out to his office (for appointments etc.) via phone at (970) 731-3700.

Dr Dennis Andrew Buck is licensed to practice in Colorado (license number DR.0062639) 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 1114157195.

Contact Information

Dr Dennis Andrew Buck, DO
95 S Pagosa Blvd,
Pagosa Springs, CO 81147-8329
(970) 731-3700
(970) 731-3707

Map and Direction




Physician's Profile

Full NameDr Dennis Andrew Buck
GenderMale
SpecialityInternal Medicine - Hematology & Oncology
Location95 S Pagosa Blvd, Pagosa Springs, Colorado
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1114157195
  • Provider Enumeration Date: 07/23/2009
  • Last Update Date: 03/01/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 3971745233
  • Enrollment ID: I20190729002401

Medical Identifiers

Medical identifiers for Dr Dennis Andrew Buck such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1114157195NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine SL0646 (Nevada)Secondary
207RX0202XInternal Medicine - Medical Oncology 5355 (Oklahoma)Secondary
207RH0003XInternal Medicine - Hematology & Oncology DR.0062639 (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 Dennis Andrew Buck 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
Entity NameUpper San Juan Health Service District
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659523058
PECOS PAC ID: 2769571892
Enrollment ID: O20090817000200

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 Dennis Andrew Buck 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 Dennis Andrew Buck, DO
95 S Pagosa Blvd,
Pagosa Springs, CO 81147-8329

Ph: (970) 731-3700		Dr Dennis Andrew Buck, DO
95 S Pagosa Blvd,
Pagosa Springs, CO 81147-8329

Ph: (970) 731-3700

Reviews and Comments


Internal Medicine Doctors in Pagosa Springs, CO

William Mccall Jordan, DO
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 95 S Pagosa Blvd, Pagosa Springs, CO 81147
Phone: 970-507-4000    Fax: 970-731-1988
Richard A Zak, MD
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 95 S Pagosa Blvd, Pagosa Springs, CO 81147
Phone: 970-731-3700    Fax: 970-731-0504
Dr. Michael Moffitt, M.D.
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 95 S Pagosa Blvd, Pagosa Springs, CO 81147
Phone: 970-731-3700    Fax: 970-731-3707
Dr. Robert A Lambert, MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 95 S Pagosa Blvd, Pagosa Springs, CO 81147
Phone: 970-507-3925    Fax: 970-731-0504
Dr. Rhonda P Webb, MD
Hematology & Oncology
Medicare: Medicare Enrolled
Practice Location: 95 S Pagosa Blvd, Pagosa Springs, CO 81147
Phone: 970-731-3700    Fax: 970-731-3707

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.