John Chretien, MD - Medicare Emergency Medicine in Nashua, NH

  1. Home
  2. Emergency Medicine
  3. NH
  4. Nashua
John Chretien, MD is a medicare enrolled "Emergency Medicine" physician in Nashua, New Hampshire. His current practice location is 8 Prospect St, Nashua, New Hampshire. You can reach out to his office (for appointments etc.) via phone at (603) 577-2500.

John Chretien is licensed to practice in New Hampshire (license number 10897) 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 1841390556.

Contact Information

John Chretien, MD
8 Prospect St,
Nashua, NH 03060-3925
(603) 577-2500
Not Available

Map and Direction




Physician's Profile

Full NameJohn Chretien
GenderMale
SpecialityEmergency Medicine
Location8 Prospect St, Nashua, New Hampshire
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1841390556
  • Provider Enumeration Date: 09/23/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 5395753800
  • Enrollment ID: I20130627000494

Medical Identifiers

Medical identifiers for John Chretien such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1841390556NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 10897 (New Hampshire)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. John Chretien allows following entities to bill medicare on his behalf.
Entity NameEmergency Coverage Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1427005008
PECOS PAC ID: 3072412592
Enrollment ID: O20100202000365
Entity NameBull City Physicians Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770004285
PECOS PAC ID: 6901164938
Enrollment ID: O20171221001735
Entity NameGem Capital Physicians Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1225524598
PECOS PAC ID: 8628320918
Enrollment ID: O20181015003602

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. John Chretien 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
John Chretien, MD
60 Lincoln Dr,
New Boston, NH 03070-4300

Ph: () -		John Chretien, MD
8 Prospect St,
Nashua, NH 03060-3925

Ph: (603) 577-2500

Reviews and Comments


Emergency Medicine Doctors in Nashua, NH

Peter J Gould, DO
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 172 Kinsley St, Nashua, NH 03060
Phone: 603-882-3000    Fax: 603-889-3774
Peter L Row, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 172 Kinsley St, Emergency Dept, Nashua, NH 03060
Phone: 603-595-3061    Fax: 603-889-3774
Eric J Hoffman, DO
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 172 Kinsley St, Nashua, NH 03060
Phone: 603-595-3061    Fax: 603-889-3774
William Loverro, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 172 Kinsley St, Nashua, NH 03060
Phone: 603-595-3061    Fax: 603-889-3774
Daniel F Weidner, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 8 Prospect St, Nashua, NH 03060
Phone: 603-577-2500    
Norman Kossayda, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 172 Kinsley St, Nashua, NH 03060
Phone: 603-595-3061    Fax: 603-889-3774
Melissa Wu, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 8 Prospect Street, Southern New Hampshire Medical Center, Nashua, NH 03061
Phone: 603-577-2273    

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.