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DR. MICHAEL O'RILEY RIGSBY M.D.
NPI 1912946005
Internal Medicine - Infectious Disease in New Haven, CT

Active since June 05, 2006PECOS Enrolled
55 LOCK STREET, NEW HAVEN, CT 06520(203) 432-0076(203) 432-7289 Get Directions Write a Review

NPPES record last updated: April 6, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Michael O'riley Rigsby M.d. NPPES

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

DR. MICHAEL O'RILEY RIGSBY M.D. (NPI 1912946005) is an individual infectious disease provider in New Haven, Connecticut, licensed in Connecticut (031214) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1912946005
Entity TypeIndividualMale
Primary Taxonomy207RI0200X
Provider Legal NameDR. MICHAEL O'RILEY RIGSBYCredential: M.D.
Location Address55 LOCK STREETNew Haven, CT 06520-8237
Mailing AddressPo Box 208237, 55 Lock StreetNew Haven, CT 06520-8237 · (203) 432-0076 · Fax (203) 432-7289
Phone(203) 432-0076
Fax(203) 432-7289
Sole ProprietorNo
Enumeration DateJune 5, 2006
Last NPPES UpdateApril 6, 2011
✔ NPI 1912946005 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
License✔ Licensed in CT · 031214
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 LOCK STREET, New Haven, CT 06520
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Other Identifiers 1

Medicare UPINE82530

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Michael O'riley Rigsby 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.

Medicare Billing Reassignment

Medicare enrollment records show Michael Rigsby reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Yale University
Same address
Health Service
55 LOCK ST
New Haven, CT 06511
  • Reassigned Medicare billing, Connecticut enrollment
  • 149 clinicians in this Medicare group
NPI 1093862740 (203) 432-0076

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06520 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.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MOLLY MEYER APRN
Clinical Nurse Specialist (Oncology)
55 LOCK STREET
NEW HAVEN, CT 06520
South Central Connecticut Planning Region (203) 432-0076
DR. SUSAN HALL FORSTER MD
Ophthalmology
55 LOCK STREET
NEW HAVEN, CT 06520
South Central Connecticut Planning Region (203) 432-0076
DR. DAVID P FOX MD
Obstetrics & Gynecology
55 LOCK STREET
NEW HAVEN, CT 06520
South Central Connecticut Planning Region (203) 432-0076
DR. DOROTHYANN J VAN RHIJN MD
Family Medicine
55 LOCK STREET
NEW HAVEN, CT 06520
South Central Connecticut Planning Region (203) 432-0076
MRS. VANESSA LOUISE JEFFERSON MSN, C-ANP, CDE
Internal Medicine
55 LOCK STREET
NEW HAVEN, CT 06520
South Central Connecticut Planning Region (203) 432-0076
DIANE M PAQUETTE APRN
Family Medicine (Adult Medicine)
55 LOCK STREET
NEW HAVEN, CT 06520
South Central Connecticut Planning Region (203) 432-0076
MR. WILLIAM J. AQUILA PA
Physician Assistant
55 LOCK STREET
NEW HAVEN, CT 06520
South Central Connecticut Planning Region (203) 432-0076
BARBARA I GULANSKI MD
Internal Medicine (Endocrinology, Diabetes & Metabolism)
55 LOCK STREET, DANA BUILDING - 3RD FLOOR
NEW HAVEN, CT 06520
South Central Connecticut Planning Region (203) 432-0076

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 Michael Rigsby's NPI number?

The NPI number for Michael Rigsby is 1912946005. It was assigned to this individual provider in the NPPES registry on June 5, 2006.

Where is Michael Rigsby located?

Michael Rigsby practices at 55 Lock Street, New Haven, CT 06520. The listed phone number is (203) 432-0076.

What is Michael Rigsby's specialty?

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

Is Michael Rigsby enrolled in Medicare?

Yes. Michael Rigsby is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Michael Rigsby's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Rigsby reassigns Medicare benefits to Yale University (New Haven, CT). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Rigsby's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Michael Rigsby was last updated on April 6, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.