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ADEL MUHANNA MUHANNA MD
NPI 1154986461
Internal Medicine - Gastroenterology in Willimantic, CT

Active since May 02, 2019PECOS EnrolledAccepts Medicare Assignment
150 MANSFIELD AVE, WILLIMANTIC, CT 06226(860) 423-3299(860) 423-8739 Get Directions Write a Review

NPPES record last updated: January 21, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jan 21, 2026, Oct 25, 2022, Aug 28, 2022 and 2 more (5 updates tracked since 2019).

About Adel Muhanna Muhanna Md NPPES

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

ADEL MUHANNA MUHANNA MD (NPI 1154986461) is an individual gastroenterology provider in Willimantic, Connecticut, licensed in Connecticut (82054) and active in the NPI registry since May 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2017).

NPPES Registry Identity

NPI1154986461
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameADEL MUHANNA MUHANNACredential: MD
Location Address150 MANSFIELD AVEWillimantic, CT 06226-2026
Mailing Address150 Mansfield AveWillimantic, CT 06226-2026 · (860) 423-3299 · Fax (860) 423-8739
Phone(860) 423-3299
Fax(860) 423-8739
Sole ProprietorNo
Medical School CMSOtherGraduated 2017
Enumeration DateMay 2, 2019
Last NPPES UpdateJanuary 21, 20265 updates tracked since enumeration
NPPES CertifiedJanuary 21, 2026
✔ NPI 1154986461 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CT · 82054
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
150 MANSFIELD AVE, Willimantic, CT 06226
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Adel Muhanna Muhanna Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID648507848
PECOS Enrollment IDI20251007001429
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 Adel Muhanna reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Connecticut Gi PLLC
24 mi
Gastroenterology
85 SEYMOUR ST, 1000
Hartford, CT 06106
  • Reassigned Medicare billing, Connecticut enrollment
  • 417 clinicians in this Medicare group
NPI 1023124625 (860) 246-2571

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 06226 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 12

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

WINDHAM GI, LLC
Internal Medicine (Gastroenterology)
150 MANSFIELD AVE
WILLIMANTIC, CT 06226
Southeastern Connecticut Planning Region (860) 423-3299
MRS. JENNIFER IACAMPO PT
Physical Therapist
150 MANSFIELD AVE
WILLIMANTIC, CT 06226
Southeastern Connecticut Planning Region (860) 456-2232
HOLLY ANN DESMARAIS NP-C
Nurse Practitioner (Family)
150 MANSFIELD AVE
WILLIMANTIC, CT 06226
Southeastern Connecticut Planning Region (860) 423-3299
JEANNE C ABRAHAMIAN OT
Occupational Therapist
150 MANSFIELD AVE
WILLIMANTIC, CT 06226
Southeastern Connecticut Planning Region (860) 456-2232
SUSAN J. MANCUSO OTR
Occupational Therapist
150 MANSFIELD AVE
WILLIMANTIC, CT 06226
Southeastern Connecticut Planning Region (860) 456-2232
MS. MEGAN ANN FINOCCHIARO APRN
Nurse Practitioner (Adult Health)
150 MANSFIELD AVE
WILLIMANTIC, CT 06226
Southeastern Connecticut Planning Region (860) 423-3299
VINCENT I. MACANDREW JR. M.D.
Orthopaedic Surgery (Sports Medicine)
150 MANSFIELD AVE
WILLIMANTIC, CT 06226
Southeastern Connecticut Planning Region (860) 456-3997
ERICA FORSYTHE
Nurse Practitioner (Pediatrics)
150 MANSFIELD AVE
WILLIMANTIC, CT 06226
Southeastern Connecticut Planning Region (860) 456-1279

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 Adel Muhanna's NPI number?

The NPI number for Adel Muhanna is 1154986461. It was assigned to this individual provider in the NPPES registry on May 2, 2019.

Where is Adel Muhanna located?

Adel Muhanna practices at 150 Mansfield Ave, Willimantic, CT 06226. The listed phone number is (860) 423-3299.

What is Adel Muhanna's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Adel Muhanna enrolled in Medicare?

Yes. Adel Muhanna is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Adel Muhanna's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Adel Muhanna reassigns Medicare benefits to Connecticut Gi PLLC (Hartford, 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 Adel Muhanna's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Adel Muhanna accept?

Health plans from Anthem Blue Cross and Blue Shield list Adel Muhanna as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Adel Muhanna was last updated on January 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.