Dr Jonathan Proulx, MD - Medicare Internal Medicine in Portsmouth, NH

Dr Jonathan Proulx, MD is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in Portsmouth, New Hampshire. His current practice location is 155 Borthwick Ave Ste C, Portsmouth, New Hampshire. You can reach out to his office (for appointments etc.) via phone at (603) 828-0100.

Dr Jonathan Proulx is licensed to practice in New Hampshire (license number 22815) 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 1518320837.

Contact Information

Dr Jonathan Proulx, MD
155 Borthwick Ave Ste C,
Portsmouth, NH 03801-7156
(603) 828-0100
(603) 828-0111

Map and Direction




Physician's Profile

Full NameDr Jonathan Proulx
GenderMale
SpecialityInternal Medicine - Hematology & Oncology
Location155 Borthwick Ave Ste C, Portsmouth, New Hampshire
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1518320837
  • Provider Enumeration Date: 04/04/2016
  • Last Update Date: 09/01/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 3870829237
  • Enrollment ID: I20220802002745

Medical Identifiers

Medical identifiers for Dr Jonathan Proulx such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1518320837NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology MD26071 (Maine)Secondary
207RH0003XInternal Medicine - Hematology & Oncology 22815 (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. Dr Jonathan Proulx allows following entities to bill medicare on his behalf.
Entity NameMaine Center For Cancer Medicine & Blood Disorders Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205896107
PECOS PAC ID: 0840195186
Enrollment ID: O20031201000458

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 Jonathan Proulx 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 Jonathan Proulx, MD
Po Box 911,
Brattleboro, VT 05302-0911

Ph: (207) 303-3200
Dr Jonathan Proulx, MD
155 Borthwick Ave Ste C,
Portsmouth, NH 03801-7156

Ph: (603) 828-0100

Reviews and Comments


Internal Medicine Doctors in Portsmouth, NH

Robert Millstein, MD
Hematology & Oncology
Medicare: Not Enrolled in Medicare
Practice Location: 100 Campus Dr, Suite 12, Portsmouth, NH 03801
Phone: 603-422-8208    Fax: 603-422-8219
Mr. Hanad Omar, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 333 Borthwick Avenue, Portsmouth, NH 03801
Phone: 603-436-5110    
Thomas P Clairmont Jr., MD
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 330 Borthwick Ave, Suite 205, Portsmouth, NH 03801
Phone: 603-436-6115    Fax: 603-433-5567
Daniel L Davies, DO
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 155 Borthwick Ave, Suite 202w, Portsmouth, NH 03801
Phone: 603-433-8434    Fax: 603-436-6608
Brian Choi, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 333 Borthwick Ave, Portsmouth, NH 03801
Phone: 215-442-5031    
Dr. Sucharit Suresh Joshi, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 875 Greenland Rd, #c-10, Portsmouth, NH 03801
Phone: 603-436-3433    Fax: 603-427-5115
Dr. Michael Casimir Danielski, M.D.
Hematology & Oncology
Medicare: Accepting Medicare Assignments
Practice Location: 875 Greenland Rd, #c-10, Portsmouth, NH 03801
Phone: 603-436-3433    Fax: 603-427-5115

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.