Dr Maireni R Cruz, MD - Medicare Internal Medicine in Athol, MA

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Dr Maireni R Cruz, MD is a medicare enrolled "Internal Medicine" physician in Athol, Massachusetts. He graduated from medical school in 2003 and has 23 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Athol Memorial Hospital Incorporated, Heywood Medical Group Inc. and his current practice location is 2033 Main St, Athol, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (978) 249-1295.

Dr Maireni R Cruz is licensed to practice in Massachusetts (license number 276933) 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 1821228727.

Contact Information

Dr Maireni R Cruz, MD
2033 Main St,
Athol, MA 01331-3535
(978) 249-1295
(978) 249-5669

Map and Direction




Physician's Profile

Full NameDr Maireni R Cruz
GenderMale
SpecialityInternal Medicine
Experience23 Years
Location2033 Main St, Athol, 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 Maireni R Cruz graduated from medical school in 2003
  NPI Data:
  • NPI Number: 1821228727
  • Provider Enumeration Date: 07/27/2009
  • Last Update Date: 07/15/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 3274679998
  • Enrollment ID: I20181107002408

Medical Identifiers

Medical identifiers for Dr Maireni R Cruz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1821228727NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 14218 (New Hampshire)Secondary
207RA0401XInternal Medicine - Addiction Medicine 276933 (Massachusetts)Secondary
2084A0401XPsychiatry & Neurology - Addiction Medicine 66373 (Wisconsin)Secondary
207R00000XInternal Medicine 276933 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Gvna Healthcare IncGardner, MAHome health agency
CaretendersNeedham heights, MAHome health agency
Gvna Healthcare IncGardner, MAHospice
Athol Memorial HospitalAthol, MAHospital
Heywood Hospital -Gardner, MAHospital
Baystate Franklin Medical CenterGreenfield, MAHospital
Umass Memorial Medical Center/university CampusWorcester, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Athol Memorial Hospital Incorporated791195984683
Heywood Medical Group Inc.6901882836103

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 Maireni R Cruz allows following entities to bill medicare on his behalf.
Entity NameHenry Heywood Memorial Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205823879
PECOS PAC ID: 1658262605
Enrollment ID: O20040322000360
Entity NameHeywood Medical Group Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699762286
PECOS PAC ID: 6901882836
Enrollment ID: O20040629001351
Entity NameAthol Memorial Hospital Incorporated
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1336120047
PECOS PAC ID: 7911959846
Enrollment ID: O20050218000228
Entity NameBelonging Medical Group Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912482787
PECOS PAC ID: 8022443878
Enrollment ID: O20220103000362

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 Maireni R Cruz 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 Maireni R Cruz, MD
7974 Uw Health Ct,
Middleton, WI 53562-5531

Ph: (608) 829-5247		Dr Maireni R Cruz, MD
2033 Main St,
Athol, MA 01331-3535

Ph: (978) 249-1295

Reviews and Comments


Internal Medicine Doctors in Athol, MA

Jose Amparo, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1467 Main St, Suite 2, Athol, MA 01331
Phone: 978-249-9736    Fax: 978-249-3922

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.