Dr Alfred W Heinser, MD - Medicare Internal Medicine in Groton, MA

Dr Alfred W Heinser, MD is a medicare enrolled "Internal Medicine" physician in Groton, Massachusetts. He went to University Of Massachusetts Medical School and graduated in 1999 and has 25 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Emerson Practice Associates, Inc and his current practice location is 100 Boston Rd, Groton, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (978) 448-4300.

Dr Alfred W Heinser is licensed to practice in Massachusetts (license number 208727) 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 1871570218.

Contact Information

Dr Alfred W Heinser, MD
100 Boston Rd,
Groton, MA 01450-1860
(978) 448-4300
(978) 448-4040

Map and Direction




Physician's Profile

Full NameDr Alfred W Heinser
GenderMale
SpecialityInternal Medicine
Experience25 Years
Location100 Boston Rd, Groton, 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 Alfred W Heinser attended and graduated from University Of Massachusetts Medical School in 1999
  NPI Data:
  • NPI Number: 1871570218
  • Provider Enumeration Date: 12/28/2005
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 0042230625
  • Enrollment ID: I20051128000620

Medical Identifiers

Medical identifiers for Dr Alfred W Heinser such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871570218NPI-NPPES
2012201MedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 208727 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Emerson Hospital Home Care ProgramConcord, MAHome health agency
Bayada Home Health Care, IncWorcester, MAHome health agency
Vna Care NetworkWorcester, MAHome health agency
Emerson Hospital -W concord, MAHospital
Nashoba Valley Medical CenterAyer, MAHospital
Massachusetts Eye And Ear Infirmary -Boston, MAHospital
Lahey Hospital & Medical Center, BurlingtonBurlington, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Emerson Practice Associates, Inc8123188117192

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 Alfred W Heinser allows following entities to bill medicare on his behalf.
Entity NameGroton Medical Associates Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1144362740
PECOS PAC ID: 6709809411
Enrollment ID: O20060109000874
Entity NameEmerson Practice Associates, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1508020199
PECOS PAC ID: 8123188117
Enrollment ID: O20081120000518

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 Alfred W Heinser 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 Alfred W Heinser, MD
Po Box 369,
Groton, MA 01450-0369

Ph: (978) 448-4300
Dr Alfred W Heinser, MD
100 Boston Rd,
Groton, MA 01450-1860

Ph: (978) 448-4300

Reviews and Comments


Internal Medicine Doctors in Groton, MA

Dr. Thomas A Goodman, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 100 Boston Rd, Groton, MA 01450
Phone: 978-448-4300    Fax: 978-448-4040
Dr. Hilde Hamar Westvik, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1 Forge Village Road, Ste C, Groton, MA 01450
Phone: 978-449-0282    
Montu Patel, D.O.
Internal Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 1 Forge Village Rd, Groton, MA 01450
Phone: 978-449-0282    Fax: 978-449-0289
Alla R Sarkisyan, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 497 Main Street, 4b, Groton, MA 01450
Phone: 978-449-0471    Fax: 978-784-9982
Dr. Dorothy M Christiansen, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 100 Boston Rd, Groton, MA 01450
Phone: 978-448-4300    Fax: 978-448-4040
Mrs. Megan-rose Comeiro, NP
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 120 Boston Rd Ste 200, Groton, MA 01450
Phone: 781-646-0500    

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.