Dr Henry John Merola, MD - Medicare Internal Medicine in Waltham, MA

Dr Henry John Merola, MD is a medicare enrolled "Internal Medicine" physician in Waltham, Massachusetts. He graduated from medical school in 1985 and has 39 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Steward Medical Group Inc and his current practice location is 32 South St, Suite 205, Waltham, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (781) 894-8200.

Dr Henry John Merola is licensed to practice in Massachusetts (license number 59659) 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 1902963986.

Contact Information

Dr Henry John Merola, MD
32 South St, Suite 205,
Waltham, MA 02453-3594
(781) 894-8200
(781) 894-8202

Map and Direction




Physician's Profile

Full NameDr Henry John Merola
GenderMale
SpecialityInternal Medicine
Experience39 Years
Location32 South St, Waltham, 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 Henry John Merola graduated from medical school in 1985
  NPI Data:
  • NPI Number: 1902963986
  • Provider Enumeration Date: 01/02/2007
  • Last Update Date: 03/07/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 9234172016
  • Enrollment ID: I20050602000645

Medical Identifiers

Medical identifiers for Dr Henry John Merola such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1902963986NPI-NPPES
1902963986OtherMAMEDICARE NPI
3145221MedicaidMA
J07727OtherMAMEDICARE ID

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 59659 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Partners Healthcare At Home - Home CareWaltham, MAHome health agency
Newton-wellesley HospitalNewton, MAHospital
Massachusetts General HospitalBoston, MAHospital
Lahey Hospital & Medical Center, BurlingtonBurlington, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Steward Medical Group Inc28606887281404

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 Henry John Merola allows following entities to bill medicare on his behalf.
Entity NameSteward Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629398219
PECOS PAC ID: 2860688728
Enrollment ID: O20101119000007

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 Henry John Merola 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 Henry John Merola, MD
32 South St, Suite 205,
Waltham, MA 02453-3594

Ph: (781) 894-8200
Dr Henry John Merola, MD
32 South St, Suite 205,
Waltham, MA 02453-3594

Ph: (781) 894-8200

Reviews and Comments


Internal Medicine Doctors in Waltham, MA

Nancy Gracin, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
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Phone: 781-487-6000    Fax: 781-497-2978
Wissam J Khoory, M.D.
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Phone: 781-893-4490    
Dr. Julie Pfeffer, MD
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Phone: 781-647-6920    
Marilyn Novich, M.D.
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Practice Location: Private Health Care Systems, 1100 Winter Street, Waltham, MA 02451
Phone: 781-895-7500    
Mary Paula Lutz, M.D.
Internal Medicine
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Practice Location: 200 West Street, Parexel International, Waltham, MA 02154
Phone: 781-434-4562    
Dr. Allison Lloyd Mcdonough, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 52 2nd Ave, Suite 2000, Waltham, MA 02451
Phone: 781-487-4040    Fax: 781-487-2870
Melody L Craft, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 200 West St, Waltham, MA 02451
Phone: 781-434-5145    

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.