Dr Gregory Charles Hahn, DO - Medicare Psychiatry in Topeka, KS

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Dr Gregory Charles Hahn, DO is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Topeka, Kansas. He graduated from medical school in 2007 and has 17 years of diverse experience with area of expertise as Psychiatry. He is a member of the group practice Cotton O'neil Clinic Revocable Trust and his current practice location is 3707 Sw 6th Ave, Topeka, Kansas. You can reach out to his office (for appointments etc.) via phone at (785) 270-4630.

Dr Gregory Charles Hahn is licensed to practice in Kansas (license number 05-39922) 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 1972702215.

Contact Information

Dr Gregory Charles Hahn, DO
3707 Sw 6th Ave,
Topeka, KS 66606-2084
(785) 270-4630
Not Available

Map and Direction




Physician's Profile

Full NameDr Gregory Charles Hahn
GenderMale
SpecialityPsychiatry
Experience17 Years
Location3707 Sw 6th Ave, Topeka, Kansas
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 Gregory Charles Hahn graduated from medical school in 2007
  NPI Data:
  • NPI Number: 1972702215
  • Provider Enumeration Date: 07/17/2007
  • Last Update Date: 07/25/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 0648541920
  • Enrollment ID: I20170804000381

Medical Identifiers

Medical identifiers for Dr Gregory Charles Hahn such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972702215NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry 05-39922 (Kansas)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Stormont Vail HospitalTopeka, KSHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Cotton O'neil Clinic Revocable Trust5496659195588

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 Gregory Charles Hahn allows following entities to bill medicare on his behalf.
Entity NameCotton O'neil Clinic Revocable Trust
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1811944457
PECOS PAC ID: 5496659195
Enrollment ID: O20031124000674

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 Gregory Charles Hahn 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 Gregory Charles Hahn, DO
3707 Sw 6th Ave,
Topeka, KS 66606-2084

Ph: (785) 270-4600		Dr Gregory Charles Hahn, DO
3707 Sw 6th Ave,
Topeka, KS 66606-2084

Ph: (785) 270-4630

Reviews and Comments


Psychiatry & Neurology Doctors in Topeka, KS

Dr. David Eugene Harris, DO
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 2200 Sw Gage Blvd, Topeka, KS 66622
Phone: 816-679-9942    
John E. Pope, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 2200 Sw Gage Blvd, Topeka, KS 66622
Phone: 785-350-3111    
Taijun Zhao, MD
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 901 Sw Garfield Ave, Topeka, KS 66606
Phone: 785-354-9591    
Joy Terue Hiramoto, MD
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 3707 Sw 6th Ave, Topeka, KS 66606
Phone: 785-270-4600    Fax: 785-270-4628
Dr. Lucy Schuler, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 2200 Sw Gage Blvd, Topeka, KS 66622
Phone: 785-350-3111    
Dr. Sanford Edward Pomerantz, M.D.
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 3601 Sw 29th St, Suite 103, Topeka, KS 66614
Phone: 785-478-3808    Fax: 785-478-3808
David Montano, MD
Psychiatry & Neurology
Medicare: Not Enrolled in Medicare
Practice Location: 330 Sw Oakley Ave, Topeka, KS 66606
Phone: 785-273-2252    

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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