Dr David A Gruenberg, MD - Medicare Allergy/immunology in Chelmsford, MA

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Dr David A Gruenberg, MD is a medicare enrolled "Allergy & Immunology" physician in Chelmsford, Massachusetts. He went to Tufts University School Of Medicine and graduated in 2005 and has 19 years of diverse experience with area of expertise as Allergy/immunology. He is a member of the group practice Allergy And Asthma Specialists, Pc, Allergy And Asthma Specialists, Pc and his current practice location is 9 Village Sq, Chelmsford, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (978) 256-4531.

Dr David A Gruenberg is licensed to practice in Massachusetts (license number 251130) 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 1386773422.

Contact Information

Dr David A Gruenberg, MD
9 Village Sq,
Chelmsford, MA 01824-2712
(978) 256-4531
(978) 256-1377

Map and Direction




Physician's Profile

Full NameDr David A Gruenberg
GenderMale
SpecialityAllergy/immunology
Experience19 Years
Location9 Village Sq, Chelmsford, 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 David A Gruenberg attended and graduated from Tufts University School Of Medicine in 2005
  NPI Data:
  • NPI Number: 1386773422
  • Provider Enumeration Date: 03/05/2007
  • Last Update Date: 07/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 3577695121
  • Enrollment ID: I20100922001137

Medical Identifiers

Medical identifiers for Dr David A Gruenberg such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1386773422NPI-NPPES
110093601AMedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207K00000XAllergy & Immunology 251130 (Massachusetts)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Allergy And Asthma Specialists, Pc35775086705
Allergy And Asthma Specialists, Pc35775086705

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 David A Gruenberg allows following entities to bill medicare on his behalf.
Entity NameAllergy & Asthma Specialists, Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1306837968
PECOS PAC ID: 3577508670
Enrollment ID: O20050620000892

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 David A Gruenberg 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 David A Gruenberg, MD
9 Village Sq,
Chelmsford, MA 01824-2712

Ph: (978) 256-4531		Dr David A Gruenberg, MD
9 Village Sq,
Chelmsford, MA 01824-2712

Ph: (978) 256-4531

Reviews and Comments


Allergy & Immunology Doctors in Chelmsford, MA

Elizabeth Yakaboski,
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 9 Village Sq, Chelmsford, MA 01824
Phone: 978-256-4531    
Dr. Julia Lynn Montejo, M.D.
Allergy & Immunology
Medicare: May Accept Medicare Assignments
Practice Location: 9 Village Sq, Chelmsford, MA 01824
Phone: 978-256-4531    Fax: 978-256-1377
Dr. Li Liang, MD
Allergy & Immunology
Medicare: Accepting Medicare Assignments
Practice Location: 9 Village Sq, Chelmsford, MA 01824
Phone: 978-256-4531    Fax: 978-256-1377
Dr. Wilfred N. Beaucher, MD
Allergy & Immunology
Medicare: Not Enrolled in Medicare
Practice Location: 9 Village Sq, Chelmsford, MA 01824
Phone: 978-256-4531    Fax: 978-256-1377

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.