Michael Thiim, MD - Medicare Gastroenterology in Haverhill, MA

Michael Thiim, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Haverhill, Massachusetts. He went to State University Of New York At Stony Brook, School Of Medicine and graduated in 1988 and has 36 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Mass General Brigham Community Physicians Inc, Massachusetts General Physicians Organization Inc, The General Hospital Corporation and his current practice location is 1 Parkway, Haverhill, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (978) 521-3270.

Michael Thiim is licensed to practice in Massachusetts (license number 79926) 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 1902801509.

Contact Information

Michael Thiim, MD
1 Parkway,
Haverhill, MA 01830-6278
(978) 521-3270
(978) 374-6495

Map and Direction




Physician's Profile

Full NameMichael Thiim
GenderMale
SpecialityGastroenterology
Experience36 Years
Location1 Parkway, Haverhill, 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:
  • Michael Thiim attended and graduated from State University Of New York At Stony Brook, School Of Medicine in 1988
  NPI Data:
  • NPI Number: 1902801509
  • Provider Enumeration Date: 06/20/2005
  • Last Update Date: 08/04/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 5597714535
  • Enrollment ID: I20050118000368

Medical Identifiers

Medical identifiers for Michael Thiim such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902801509NPI-NPPES
3129136MedicaidMA
989724OtherMANETWORK HEALTH
6831016OtherMAHEALTHSOURCE
F21237OtherNHANTHEM BLUE CROSS
F21237OtherMAHARVARD PILGRIM HEALTHCAR
30202213OtherNHNH MEDICAID
J30761OtherMABLUE CROSS BLUE SHIELD
0017426OtherMANEIGHBORHOOD HEALTH PLAN
29-00989OtherMAEVERCARE
7976770OtherCIGNA
758217OtherMATUFTS HEALTH CARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 79926 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Massachusetts General HospitalBoston, MAHospital
North Shore Medical Center -Salem, MAHospital
Wentworth-douglass HospitalDover, NHHospital
Brigham And Women's HospitalBoston, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mass General Brigham Community Physicians Inc1759273436297
Massachusetts General Physicians Organization Inc24663658203085
The General Hospital Corporation65078038061054

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. Michael Thiim allows following entities to bill medicare on his behalf.
Entity NameMassachusetts General Physicians Organization Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801874573
PECOS PAC ID: 2466365820
Enrollment ID: O20031111000434
Entity NameThe General Hospital Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023049236
PECOS PAC ID: 6507803806
Enrollment ID: O20080313000351
Entity NameMass General Brigham Community Physicians Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891112637
PECOS PAC ID: 1759273436
Enrollment ID: O20150723007726

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. Michael Thiim 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
Michael Thiim, MD
1 Parkway,
Haverhill, MA 01830-6278

Ph: (978) 521-3270
Michael Thiim, MD
1 Parkway,
Haverhill, MA 01830-6278

Ph: (978) 521-3270

Reviews and Comments


Internal Medicine Doctors in Haverhill, MA

Margaret Mary Hunt, DO
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Practice Location: 145 Ward Hill Ave, Haverhill, MA 01835
Phone: 978-372-8000    
Dr. William Rogers Obrien Dibrielle, MD
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Practice Location: 1 Parkway, Haverhill, MA 01830
Phone: 978-521-3250    Fax: 978-469-5646
Francis P. Macmillan, M.D.
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Sunny Srivastava, M.D.
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Phone: 978-521-3288    Fax: 978-469-5644
Beverly A. Brennan, M.D.
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Practice Location: 600 Primrose St, Haverhill, MA 01830
Phone: 978-469-7100    Fax: 978-469-7199
Dr. Jason M Hemming, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 1 Park Way, Haverhill, MA 01830
Phone: 978-521-3235    Fax: 978-521-3236
Dr. David A Byrne, M.D
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Medicare: Not Enrolled in Medicare
Practice Location: 62 Brown Street, Suite 200, Haverhill, MA 01830
Phone: 978-521-8377    Fax: 978-521-3689

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.