Dr Peter Tebet Greenspan, MD - Medicare Pediatrics in Waltham, MA

Dr Peter Tebet Greenspan, MD is a medicare enrolled "Pediatrics" physician in Waltham, Massachusetts. His current practice location is 40 2nd Ave, Mass General West Medical Group Ste 400, Waltham, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (781) 487-4340.

Dr Peter Tebet Greenspan is licensed to practice in Massachusetts (license number 44159) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1295725885.

Contact Information

Dr Peter Tebet Greenspan, MD
40 2nd Ave, Mass General West Medical Group Ste 400,
Waltham, MA 02451-1137
(781) 487-4340
(781) 487-4341

Map and Direction




Physician's Profile

Full NameDr Peter Tebet Greenspan
GenderMale
SpecialityPediatrics
Location40 2nd Ave, Waltham, Massachusetts
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1295725885
  • Provider Enumeration Date: 10/25/2005
  • Last Update Date: 06/05/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 1951375153
  • Enrollment ID: I20040824000193

Medical Identifiers

Medical identifiers for Dr Peter Tebet Greenspan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1295725885NPI-NPPES
B51049OtherMABCBS MA
044159OtherMATUFTS HEALTH PLAN
6164595MedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208000000XPediatrics 44159 (Massachusetts)Primary

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 Peter Tebet Greenspan allows following entities to bill medicare on his behalf.
Entity NameMassachusetts General Physicians Organization Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801874573
PECOS PAC ID: 2466365820
Enrollment ID: O20031111000434
Entity NameThe General Hospital Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023049236
PECOS PAC ID: 6507803806
Enrollment ID: O20080313000351

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 Peter Tebet Greenspan 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 Peter Tebet Greenspan, MD
Po Box 9142, Mass General Physician Organization,
Charlestown, MA 02129-9142

Ph: (781) 487-4340
Dr Peter Tebet Greenspan, MD
40 2nd Ave, Mass General West Medical Group Ste 400,
Waltham, MA 02451-1137

Ph: (781) 487-4340

Reviews and Comments


Pediatrics Doctors in Waltham, MA

Dr. Robert D Fusunyan, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 40 2nd Avenue, Suite 340, Waltham, MA 02451
Phone: 781-466-8967    Fax: 781-466-8987
Dr. Beth Ann Mccabe, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 40 2nd Ave, Suite 400, Waltham, MA 02451
Phone: 781-522-9000    Fax: 617-735-9098
Cynthia Sacco, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 245 Winter St, Waltham, MA 02451
Phone: 781-419-2709    
Myron B Peterson, M.D.
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: Cato Ltd., 1100 Winter Street, Waltham, MA 02451
Phone: 617-484-2297    
Dr. Sarah Pritchett Zimmerman, MD
Pediatrics
Medicare: Medicare Enrolled
Practice Location: 40 2nd Ave Ste 400, Waltham, MA 02451
Phone: 781-487-4340    
James I Goldston, MD
Pediatrics
Medicare: Not Enrolled in Medicare
Practice Location: 42 Weston St Ste 2a, Waltham, MA 02453
Phone: 781-747-8480    Fax: 949-577-4121

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.