Dr Lawrence R Hennessey, MD - Medicare Allergy/immunology in Ann Arbor, MI

Dr Lawrence R Hennessey, MD is a medicare enrolled "Allergy & Immunology" physician in Ann Arbor, Michigan. He went to Michigan State University College Of Human Medicine and graduated in 1986 and has 38 years of diverse experience with area of expertise as Allergy/immunology. He is a member of the group practice Regents Of The University Of Michigan and his current practice location is 325 Briarwood Cir, Ann Arbor, Michigan. You can reach out to his office (for appointments etc.) via phone at (734) 647-5940.

Dr Lawrence R Hennessey is licensed to practice in Michigan (license number 4301407112) 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 1629078142.

Contact Information

Dr Lawrence R Hennessey, MD
325 Briarwood Cir,
Ann Arbor, MI 48108-1605
(734) 647-5940
Not Available

Map and Direction




Physician's Profile

Full NameDr Lawrence R Hennessey
GenderMale
SpecialityAllergy/immunology
Experience38 Years
Location325 Briarwood Cir, Ann Arbor, Michigan
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 Lawrence R Hennessey attended and graduated from Michigan State University College Of Human Medicine in 1986
  NPI Data:
  • NPI Number: 1629078142
  • Provider Enumeration Date: 07/27/2005
  • Last Update Date: 10/11/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 3971546623
  • Enrollment ID: I20050603000873

Medical Identifiers

Medical identifiers for Dr Lawrence R Hennessey such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1629078142NPI-NPPES
4744075MedicaidMI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207KA0200XAllergy & Immunology - Allergy LH407112 (Michigan)Secondary
207K00000XAllergy & Immunology 4301407112 (Michigan)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Regents Of The University Of Michigan37794968562953

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 Lawrence R Hennessey allows following entities to bill medicare on his behalf.
Entity NameRegents Of The University Of Michigan
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700816881
PECOS PAC ID: 3779496856
Enrollment ID: O20031113000672

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 Lawrence R Hennessey 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 Lawrence R Hennessey, MD
3621 S State St,
Ann Arbor, MI 48108-1633

Ph: (734) 647-5299
Dr Lawrence R Hennessey, MD
325 Briarwood Cir,
Ann Arbor, MI 48108-1605

Ph: (734) 647-5940

Reviews and Comments


Allergy & Immunology Doctors in Ann Arbor, MI

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Cynthia L Cookingham, MD
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Sherry Zhou, MD
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James L Baldwin, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 24 Frank Lloyd Wright Dr, Suite H-2100, Ann Arbor, MI 48105
Phone: 734-647-5940    

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.

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