1. Home
  2. Directory
  3. Connecticut
  4. New Haven
  5. Pathology
  6. NPI Profile

AADIL AHMED MD
NPI 1407240559
Pathology - Anatomic Pathology & Clinical Pathology in New Haven, CT

Active since March 26, 2015PECOS EnrolledAccepts Medicare Assignment
20 YORK ST, NEW HAVEN, CT 06510(203) 688-4242 Get Directions Write a Review

NPPES record last updated: December 30, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 30, 2025, Jun 7, 2019 (2 updates tracked since 2019).

About Aadil Ahmed Md NPPES

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

AADIL AHMED MD (NPI 1407240559) is an individual anatomic pathology & clinical pathology provider in New Haven, Connecticut, licensed in Illinois (036154739) and active in the NPI registry since March 2015. He is enrolled in Medicare PECOS, is affiliated with Loyola Gottlieb Memorial Hospital, and maintains a secondary practice location in Maywood.

NPPES Registry Identity

NPI1407240559
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameAADIL AHMEDCredential: MD
Location Address20 YORK STNew Haven, CT 06510-3220
Mailing Address2160 S 1st AveMaywood, IL 60153-3328 · (708) 216-9000
Phone(203) 688-4242
Sole ProprietorNo
Medical School CMSOtherGraduated 2010
Enumeration DateMarch 26, 2015
Last NPPES UpdateDecember 30, 20252 updates tracked since enumeration
NPPES CertifiedDecember 30, 2025
✔ NPI 1407240559 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
Licenses✔ Licensed in IL · 036154739✔ Licensed in CT · 1063600✔ Licensed in IL · 125067135
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
20 YORK ST, New Haven, CT 06510
Open in Google Maps ↗

Secondary Practice Location 1

Location 12160 S. First Avenue, Bld. 110, Loyola University Medical CenterMaywood, IL 60153 · Phone (708) 327-2626

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.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

Aadil Ahmed 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 ID2466753249
PECOS Enrollment IDI20210802001192
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 Reassignments

4

Medicare enrollment records show Aadil Ahmed reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

University Pathology Diagnostics Sc
764 mi
Anatomic Pathology & Clinical Pathology
1653 W CONGRESS PKWY, 570 JELKE
Chicago, IL 60612
  • Reassigned Medicare billing, Illinois enrollment
  • 25 clinicians in this Medicare group
NPI 1275088130 (312) 942-8850
Illinois Dermatology Institute, LLC
767 mi
Dermatology
9711 SKOKIE BLVD, SUITE J.
Skokie, IL 60077
  • Reassigned Medicare billing, Illinois enrollment
  • 33 clinicians in this Medicare group
NPI 1891920898 (847) 675-9711
Loyola University Medical Center
772 mi
General Practice
2160 S 1ST AVE
Maywood, IL 60153
  • Reassigned Medicare billing, Illinois enrollment
  • 1,138 clinicians in this Medicare group
NPI 1336159961 (708) 216-3215
Physicians Dermpath Laboratory
773 mi
Dermatopathology
1420 N. RENAISSANCE DR., SUITE 204
Park Ridge, IL 60068
  • Reassigned Medicare billing, Illinois enrollment
  • 4 clinicians in this Medicare group
NPI 1376866897 (847) 768-2440

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

Areas of Expertise CMS Part B claims 7

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Pathology examination of tissue using a microscope, intermediate complexity 88305
A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.
5,301 services3,393 patients
Special stained specimen slides to examine tissue, initial procedure 88342
This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.
608 services559 patients
Special stained specimen slides to examine tissue, each additional procedure 88341
Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.
528 services215 patients
Pathology examination of tissue using a microscope, moderately low complexity 88304
A pathology examination of tissue, moderately low complexity, involves studying a small sample of your body tissue under a microscope. It helps to identify any abnormal cells or diseases. It's a routine procedure, not complex, and provides crucial insights for your diagnosis.
180 services162 patients
Special stained specimen slides to examine tissue including interpretation and report 88313
Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.
112 services93 patients
Special stained specimen slides to identify organisms including interpretation and report 88312
This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.
101 services79 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Loyola Gottlieb Memorial Hospital

Acute Care Hospitals · Melrose Park, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140008
Location701 West North AveMelrose Park, IL 60160 · Cook County
Emergency services

Macneal Hospital

Acute Care Hospitals · Berwyn, IL
2/5 CMS rating
OwnershipProprietary
CMS Certification Number140054
Location3249 South Oak Park AvenueBerwyn, IL 60402 · Cook County
Emergency services Birthing friendly

Loyola University Medical Center

Acute Care Hospitals · Maywood, IL
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140276
Location2160 S 1st AvenueMaywood, IL 60153 · Cook County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06510 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.

AUDREY P SENIOR APRN
Nurse Practitioner (Family)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-5860
DR. YEISID F FIGUEREDO M.D.
Pediatrics (Neonatal-Perinatal Medicine)
20 YORK ST, DEPT OF NEONATOLOGY
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2320
YALE NEW HAVEN HOSPITAL
Durable Medical Equipment & Medical Supplies (Customized Equipment)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-2046
TAYLOR KINGSTON
Dietitian, Registered
20 YORK ST, FOOD AND NUTRITION EPB806
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-9185
DR. TRAVIS DANIEL BONTRAGER MD
Hospitalist
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-1734
TERESA JOSEPH D.O.
Internal Medicine (Nephrology)
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 737-8894
MR. BRAD ST. MARTIN MD
Obstetrics & Gynecology
20 YORK ST
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 688-4242
BERNADETTE BIMONTE-HACKETT LCSW
Social Worker (Clinical)
20 YORK ST, SOCIAL WORK EP10-635
NEW HAVEN, CT 06510
South Central Connecticut Planning Region (203) 785-5161

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 Aadil Ahmed's NPI number?

The NPI number for Aadil Ahmed is 1407240559. It was assigned to this individual provider in the NPPES registry on March 26, 2015.

Where is Aadil Ahmed located?

Aadil Ahmed practices at 20 York St, New Haven, CT 06510. The listed phone number is (203) 688-4242.

What is Aadil Ahmed's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is Aadil Ahmed enrolled in Medicare?

Yes. Aadil Ahmed 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 organizations bill Medicare for Aadil Ahmed's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Aadil Ahmed reassigns Medicare benefits to 4 organizations: University Pathology Diagnostics Sc (Chicago, IL), Illinois Dermatology Institute, LLC (Skokie, IL), Loyola University Medical Center (Maywood, IL) and Physicians Dermpath Laboratory (Park Ridge, IL). Each 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 Aadil Ahmed's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Aadil Ahmed accept?

Health plans from Oscar Health list Aadil Ahmed 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.

Is Aadil Ahmed affiliated with any hospitals?

According to CMS data, Aadil Ahmed is affiliated with Loyola Gottlieb Memorial Hospital, Macneal Hospital and Loyola University Medical Center.

When was this NPI record last updated?

The NPPES record for Aadil Ahmed was last updated on December 30, 2025. 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.