Dr Belton Douglas Hallmark, MD - Medicare Family Practice in Castle Rock, CO

Dr Belton Douglas Hallmark, MD is a medicare enrolled "Family Medicine" physician in Castle Rock, Colorado. He went to University Of Texas Medical Branch At Galveston and graduated in 1979 and has 45 years of diverse experience with area of expertise as Family Practice. His current practice location is 1189 S Perry St Ste 230, Castle Rock, Colorado. You can reach out to his office (for appointments etc.) via phone at (303) 688-3434.

Dr Belton Douglas Hallmark is licensed to practice in Colorado (license number 23157) 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 1225018633.

Contact Information

Dr Belton Douglas Hallmark, MD
1189 S Perry St Ste 230,
Castle Rock, CO 80104-1959
(303) 688-3434
(303) 688-4454

Map and Direction




Physician's Profile

Full NameDr Belton Douglas Hallmark
GenderMale
SpecialityFamily Practice
Experience45 Years
Location1189 S Perry St Ste 230, Castle Rock, 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 Belton Douglas Hallmark attended and graduated from University Of Texas Medical Branch At Galveston in 1979
  NPI Data:
  • NPI Number: 1225018633
  • Provider Enumeration Date: 01/20/2006
  • Last Update Date: 07/11/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4082663059
  • Enrollment ID: I20050117000355

Medical Identifiers

Medical identifiers for Dr Belton Douglas Hallmark such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225018633NPI-NPPES
01231570MedicaidCO
G0423OtherTXTEXAS LICENSE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 23157 (Colorado)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Parker Adventist HospitalParker, COHospital
Sky Ridge Medical CenterLone tree, COHospital
Castle Rock Adventist HospitalCastle rock, COHospital

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 Belton Douglas Hallmark allows following entities to bill medicare on his behalf.
Entity NameDouglas Family Medicine Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770602013
PECOS PAC ID: 0840390324
Enrollment ID: O20070712000648

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 Belton Douglas Hallmark 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 Belton Douglas Hallmark, MD
Po Box 17837,
Belfast, ME 04915-4073

Ph: (303) 688-3434
Dr Belton Douglas Hallmark, MD
1189 S Perry St Ste 230,
Castle Rock, CO 80104-1959

Ph: (303) 688-3434

Reviews and Comments


Family Medicine Doctors in Castle Rock, CO

Lauren Kingery Tempel,
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1175 South Perry Street, Castle Rock, CO 80104
Phone: 303-688-3434    Fax: 303-688-4454
Dr. John Thomas Campbell Ii, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4386 Trail Boss Dr, Suite A, Castle Rock, CO 80104
Phone: 303-688-8666    Fax: 303-688-8260
Andrew Lawrence Glerum, DO
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 4344 Woodlands Blvd Ste 260, Castle Rock, CO 80104
Phone: 303-649-3155    Fax: 303-649-3156
Dr. Stuart M Prins, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4318 Trail Boss Dr, Ste 100, Castle Rock, CO 80104
Phone: 303-338-4545    
Manoj V Pawar, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 6578 Esmeralda Dr, Castle Rock, CO 80108
Phone: 303-596-9250    Fax: 720-727-9355
Dr. David Lloyd Wood, D.O.
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2100 N Rocky View Rd, Castle Rock, CO 80108
Phone: 303-814-0484    
Dr. Preston Keith Nein, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3887 Stone Canon Ranch Rd, Castle Rock, CO 80104
Phone: 303-246-7027    

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.