Mark A Preston, MD - Medicare Psychiatry in Creston, IA

Mark A Preston, MD is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Creston, Iowa. He went to University Of Iowa, Rj & L Carver College Of Medicine and graduated in 1984 and has 40 years of diverse experience with area of expertise as Psychiatry. He is a member of the group practice Greater Regional Medical Center and his current practice location is 1700 W Townline St, Creston, Iowa. You can reach out to his office (for appointments etc.) via phone at (641) 782-2131.

Mark A Preston is licensed to practice in Iowa (license number 25526) 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 1811987043.

Contact Information

Mark A Preston, MD
1700 W Townline St,
Creston, IA 50801-1054
(641) 782-2131
(641) 782-6425

Map and Direction




Physician's Profile

Full NameMark A Preston
GenderMale
SpecialityPsychiatry
Experience40 Years
Location1700 W Townline St, Creston, Iowa
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:
  • Mark A Preston attended and graduated from University Of Iowa, Rj & L Carver College Of Medicine in 1984
  NPI Data:
  • NPI Number: 1811987043
  • Provider Enumeration Date: 10/27/2005
  • Last Update Date: 11/08/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 6800982521
  • Enrollment ID: I20090126000652

Medical Identifiers

Medical identifiers for Mark A Preston such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1811987043NPI-NPPES
0241042MedicaidIA
11471OtherIAMIDLANDS CHOICE
1811987043MedicaidIA
28592OtherIAWELLMARK
IA0105OtherIAJOHN DEERE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry 25526 (Iowa)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Greater Regional Medical CenterCreston, IAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Greater Regional Medical Center923404101337

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. Mark A Preston allows following entities to bill medicare on his behalf.
Entity NameGreater Regional Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902805062
PECOS PAC ID: 9234041013
Enrollment ID: O20040205000926

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. Mark A Preston 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
Mark A Preston, MD
1700 W Townline St,
Creston, IA 50801-1054

Ph: (641) 782-7091
Mark A Preston, MD
1700 W Townline St,
Creston, IA 50801-1054

Ph: (641) 782-2131

Reviews and Comments


Psychiatry & Neurology Doctors in Creston, IA


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).

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