Dr Gregory William Ruhnke, MD - Medicare Internal Medicine in Boston, MA

Dr Gregory William Ruhnke, MD is a medicare enrolled "Internal Medicine" physician in Boston, Massachusetts. He went to Stanford University School Of Medicine and graduated in 1998 and has 26 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice University Of Chicago and his current practice location is 15 Parkman Street Wac 108, Medical Walk In Unit, Boston, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (617) 726-2707.

Dr Gregory William Ruhnke is licensed to practice in Massachusetts (license number 210234) 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 1679541395.

Contact Information

Dr Gregory William Ruhnke, MD
15 Parkman Street Wac 108, Medical Walk In Unit,
Boston, MA 02114-3117
(617) 726-2707
Not Available

Map and Direction




Physician's Profile

Full NameDr Gregory William Ruhnke
GenderMale
SpecialityInternal Medicine
Experience26 Years
Location15 Parkman Street Wac 108, Boston, Massachusetts
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 William Ruhnke attended and graduated from Stanford University School Of Medicine in 1998
  NPI Data:
  • NPI Number: 1679541395
  • Provider Enumeration Date: 03/09/2006
  • Last Update Date: 09/02/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 1759317118
  • Enrollment ID: I20090225000145

Medical Identifiers

Medical identifiers for Dr Gregory William Ruhnke such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1679541395NPI-NPPES
0143235MedicaidMA
210964OtherMATUFTS HEALTH PLAN
J23727OtherMABCBS MA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 210234 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
The University Of Chicago Medical CenterChicago, ILHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
University Of Chicago77198994261157

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 William Ruhnke allows following entities to bill medicare on his behalf.
Entity NameUniversity Of Chicago
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821048786
PECOS PAC ID: 7719899426
Enrollment ID: O20031103000094
Entity NameThe University Of Chicago Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033218128
PECOS PAC ID: 7618880766
Enrollment ID: O20031106000203

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 William Ruhnke 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 William Ruhnke, MD
5841 South Maryland Avenue, University Of Chicago Medical Center,
Chicago, IL 60637-2007

Ph: (773) 702-5212
Dr Gregory William Ruhnke, MD
15 Parkman Street Wac 108, Medical Walk In Unit,
Boston, MA 02114-3117

Ph: (617) 726-2707

Reviews and Comments


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Dr. Felicia Elizabeth Patch, MD
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Practice Location: 801 Massachusetts Ave, Crosstown 2, Boston, MA 02118
Phone: 617-414-4376    Fax: 617-414-4676

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.