Dr Lauren Demaris, DO - Medicare Internal Medicine in Portsmouth, NH

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Dr Lauren Demaris, DO is a medicare enrolled "Internal Medicine" physician in Portsmouth, New Hampshire. Her current practice location is 333 Borthwick Ave Ste 100, Portsmouth, New Hampshire. You can reach out to her office (for appointments etc.) via phone at (603) 436-5110.

Dr Lauren Demaris is licensed to practice in New Hampshire (license number 25384) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1124640107.

Contact Information

Dr Lauren Demaris, DO
333 Borthwick Ave Ste 100,
Portsmouth, NH 03801-4198
(603) 436-5110
Not Available

Map and Direction




Physician's Profile

Full NameDr Lauren Demaris
GenderFemale
SpecialityInternal Medicine
Location333 Borthwick Ave Ste 100, 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: 1124640107
  • Provider Enumeration Date: 05/12/2020
  • Last Update Date: 07/31/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 5991239527
  • Enrollment ID: I20241105002755

Medical Identifiers

Medical identifiers for Dr Lauren Demaris such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1124640107NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 25384 (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 Lauren Demaris allows following entities to bill medicare on her behalf.
Entity NameHospital Medicine Services Of Nh, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548967607
PECOS PAC ID: 8527423706
Enrollment ID: O20230421000740

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 Lauren Demaris 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 Lauren Demaris, DO
333 Borthwick Ave Ste 100,
Portsmouth, NH 03801-4198

Ph: (603) 436-5110		Dr Lauren Demaris, DO
333 Borthwick Ave Ste 100,
Portsmouth, NH 03801-4198

Ph: (603) 436-5110

Reviews and Comments


Internal Medicine Doctors in Portsmouth, NH

Robert Millstein, MD
Internal Medicine
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.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 333 Borthwick Avenue, Portsmouth, NH 03801
Phone: 603-436-5110    
Maria Jose Zambrano Ordonez, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 333 Borthwick Ave, Portsmouth, NH 03801
Phone: 603-436-5110    
Thomas P Clairmont Jr., MD
Internal Medicine
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
Internal Medicine
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.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 333 Borthwick Ave, Portsmouth, NH 03801
Phone: 215-442-5031    
Dr. Sucharit Suresh Joshi, M.D.
Internal Medicine
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.