DR. ROBERT STEVEN WALLIS M.D.
NPI 1154555738
Internal Medicine - Infectious Disease in Old Lyme, CT

Q: What is Robert Wallis's NPI number?

The NPI number for Robert Wallis is 1154555738. It was assigned to this individual provider in the NPPES registry on May 11, 2009.

Q: What is Robert Wallis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Q: When was this NPI record last updated?

The NPPES record for Robert Wallis was last updated on August 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 11, 2009PECOS Enrolled

55 SAUNDERS HOLLOW RD, OLD LYME, CT 06371(860) 598-9160 Get Directions Write a Review

NPPES record last updated: August 10, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Dr. Robert Steven Wallis M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ROBERT STEVEN WALLIS M.D. (NPI 1154555738) is an individual infectious disease provider in Old Lyme, Connecticut, licensed in Connecticut (49370) and active in the NPI registry since May 2009. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1154555738

Entity TypeIndividualMale

Primary Taxonomy207RI0200X

Provider Legal NameDR. ROBERT STEVEN WALLISCredential: M.D.

Location Address55 SAUNDERS HOLLOW RDOld Lyme, CT 06371-1127

Mailing Address55 Saunders Hollow RdOld Lyme, CT 06371-1127 · (860) 598-9160

Phone(860) 598-9160

Sole ProprietorNo

Enumeration DateMay 11, 2009

Last NPPES UpdateAugust 10, 2021

NPPES CertifiedAugust 10, 2021

✔ NPI 1154555738 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RI0200X

Licenses✔ Licensed in CT · 49370✔ Licensed in NJ · 25MA07059900✔ Licensed in DC · MD037184

Definition

An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.

55 SAUNDERS HOLLOW RD, Old Lyme, CT 06371

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Robert Steven Wallis M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer– Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06371 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$138.84 typical visit price

range $60.82 – $183.10

Typical copayment $34.71 (range $15.20 – $45.77)

Most-billed visit code 99204

Established Patient

$106.68 typical visit price

range $19.76 – $149.26

Typical copayment $26.67 (range $4.94 – $37.31)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert Wallis's NPI number?

The NPI number for Robert Wallis is 1154555738. It was assigned to this individual provider in the NPPES registry on May 11, 2009.

Where is Robert Wallis located?

Robert Wallis practices at 55 Saunders Hollow Rd, Old Lyme, CT 06371. The listed phone number is (860) 598-9160.

What is Robert Wallis's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Robert Wallis enrolled in Medicare?

Yes. Robert Wallis is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Robert Wallis was last updated on August 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.