Dr Tamas Otrok, MD - Medicare Gastroenterology in Longmont, CO

Dr Tamas Otrok, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Longmont, Colorado. He graduated from medical school in 1993 and has 31 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Boulder Valley Gastroenterology Inc. and his current practice location is 1551 Professional Ln Unit 290, Longmont, Colorado. You can reach out to his office (for appointments etc.) via phone at (303) 604-5000.

Dr Tamas Otrok is licensed to practice in Iowa (license number 34169) 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 1851386734.

Contact Information

Dr Tamas Otrok, MD
1551 Professional Ln Unit 290,
Longmont, CO 80501-6970
(303) 604-5000
(720) 890-0364

Map and Direction




Physician's Profile

Full NameDr Tamas Otrok
GenderMale
SpecialityGastroenterology
Experience31 Years
Location1551 Professional Ln Unit 290, Longmont, 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 Tamas Otrok graduated from medical school in 1993
  NPI Data:
  • NPI Number: 1851386734
  • Provider Enumeration Date: 09/15/2005
  • Last Update Date: 03/06/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 4183697147
  • Enrollment ID: I20151028001396

Medical Identifiers

Medical identifiers for Dr Tamas Otrok such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1851386734NPI-NPPES
18330258MedicaidCO

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 34169 (Iowa)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Boulder Community HealthBoulder, COHospital
Good Samaritan Medical Center LlcLafayette, COHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Boulder Valley Gastroenterology Inc.468857717447

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 Tamas Otrok allows following entities to bill medicare on his behalf.
Entity NameBoulder Valley Gastroenterology Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902832603
PECOS PAC ID: 4688577174
Enrollment ID: O20040130001035

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 Tamas Otrok 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 Tamas Otrok, MD
382 S Arthur Ave,
Louisville, CO 80027-3094

Ph: (303) 604-5000
Dr Tamas Otrok, MD
1551 Professional Ln Unit 290,
Longmont, CO 80501-6970

Ph: (303) 604-5000

Reviews and Comments


Internal Medicine Doctors in Longmont, CO

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Theresa A Tyler,
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Dr. Lynn Marie Carlyle, M.D.
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Phone: 720-388-7760    Fax: 720-405-4228
Dr. Linda Backup, MD
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Practice Location: 1925 W Mountain View Ave, Longmont, CO 80501
Phone: 303-776-1234    Fax: 720-494-3107
Dr. Anita R. Ritenour, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 1750 E Ken Pratt Blvd, Longmont, CO 80504
Phone: 720-718-7000    

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.