Mr Guy P Van Der Werf, MD - Medicare Family Practice in Estes Park, CO

Mr Guy P Van Der Werf, MD is a medicare enrolled "Family Medicine" physician in Estes Park, Colorado. He went to University Of Arizona College Of Medicine and graduated in 1987 and has 37 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Poudre Valley Medical Group Llc and his current practice location is 131 Stanley Ave Ste 202, Estes Park, Colorado. You can reach out to his office (for appointments etc.) via phone at (970) 586-2344.

Mr Guy P Van Der Werf is licensed to practice in Colorado (license number 31317) 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 1538154257.

Contact Information

Mr Guy P Van Der Werf, MD
131 Stanley Ave Ste 202,
Estes Park, CO 80517-6356
(970) 586-2344
(970) 586-9060

Map and Direction




Physician's Profile

Full NameMr Guy P Van Der Werf
GenderMale
SpecialityFamily Practice
Experience37 Years
Location131 Stanley Ave Ste 202, Estes Park, 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:
  • Mr Guy P Van Der Werf attended and graduated from University Of Arizona College Of Medicine in 1987
  NPI Data:
  • NPI Number: 1538154257
  • Provider Enumeration Date: 09/19/2005
  • Last Update Date: 09/27/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 8426090804
  • Enrollment ID: I20050525001019

Medical Identifiers

Medical identifiers for Mr Guy P Van Der Werf such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1538154257NPI-NPPES
1313170MedicaidCO
01313170MedicaidCO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 31317 (Colorado)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Estes Park Medical CenterEstes park, COHospital
Medical Center Of The RockiesLoveland, COHospital
Poudre Valley HospitalFort collins, COHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Poudre Valley Medical Group Llc96382085491607

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. Mr Guy P Van Der Werf allows following entities to bill medicare on his behalf.
Entity NamePoudre Valley Medical Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1366763260
PECOS PAC ID: 9638208549
Enrollment ID: O20100602000122

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. Mr Guy P Van Der Werf 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
Mr Guy P Van Der Werf, MD
555 Prospect Ave,
Estes Park, CO 80517-6312

Ph: (970) 586-2200
Mr Guy P Van Der Werf, MD
131 Stanley Ave Ste 202,
Estes Park, CO 80517-6356

Ph: (970) 586-2344

Reviews and Comments


Family Medicine Doctors in Estes Park, CO

Dr. Bridget Ann Dunn, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 555 Prospect Ave, Suite 300, Estes Park, CO 80517
Phone: 970-586-2200    Fax: 970-577-4536
Dr. Bruce Alan Woolman, D.O.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 131 Stanley Avenue, Suite 202, Estes Park, CO 80517
Phone: 970-586-2343    Fax: 970-586-9060
Dr. Michael Brian Rountree, M.D.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 350 Far View Dr, Estes Park, CO 80517
Phone: 828-719-0026    
Dr. Bryan Kent Reichert, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 1600 Fish Hatchery Rd, Estes Park, CO 80517
Phone: 970-586-4491    Fax: 970-577-0392
Dr. John Kevin Stanton, D.O.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1950 Redtail Hawk Dr, Estes Park, CO 80517
Phone: 970-586-9230    Fax: 970-586-0292
Robyn A Zehr, D.O.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 555 Prospect Ave, Estes Park, CO 80517
Phone: 970-586-2200    Fax: 970-577-4536

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.