Dr Robert Steven Wallis, MD - Medicare Internal Medicine in Old Lyme, CT

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Dr Robert Steven Wallis, MD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in Old Lyme, Connecticut. His current practice location is 55 Saunders Hollow Rd, Old Lyme, Connecticut. You can reach out to his office (for appointments etc.) via phone at (860) 598-9160.

Dr Robert Steven Wallis is licensed to practice in Connecticut (license number 49370) 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 1154555738.

Contact Information

Dr Robert Steven Wallis, MD
55 Saunders Hollow Rd,
Old Lyme, CT 06371-1127
(860) 598-9160
Not Available

Map and Direction




Physician's Profile

Full NameDr Robert Steven Wallis
GenderMale
SpecialityInternal Medicine - Infectious Disease
Location55 Saunders Hollow Rd, Old Lyme, Connecticut
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1154555738
  • Provider Enumeration Date: 05/11/2009
  • Last Update Date: 08/10/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 2466751342
  • Enrollment ID: I20160427000933

Medical Identifiers

Medical identifiers for Dr Robert Steven Wallis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1154555738NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RI0200XInternal Medicine - Infectious Disease MD037184 (District Of Columbia)Secondary
207RI0200XInternal Medicine - Infectious Disease 25MA07059900 (New Jersey)Secondary
207RI0200XInternal Medicine - Infectious Disease 49370 (Connecticut)Primary

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 Robert Steven Wallis 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 Robert Steven Wallis, MD
55 Saunders Hollow Rd,
Old Lyme, CT 06371-1127

Ph: (860) 598-9160		Dr Robert Steven Wallis, MD
55 Saunders Hollow Rd,
Old Lyme, CT 06371-1127

Ph: (860) 598-9160

Reviews and Comments


Internal Medicine Doctors in Old Lyme, CT

Dr. Mary Cummings Satti, M.D.
Infectious Disease
Medicare: Accepting Medicare Assignments
Practice Location: 8 Vista Dr, Eastport North Business Park, Old Lyme, CT 06371
Phone: 860-434-8847    Fax: 860-434-0428

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.