HOWARD L. QUENTZEL, M.D., LLC
NPI 1811092836
Clinic/Center - Medical Specialty in Derby, CT

Q: What is Howard L. Quentzel, M.D., LLC's NPI number?

The NPI number for Howard L. Quentzel, M.D., LLC is 1811092836. It was assigned to this organization in the NPPES registry on September 14, 2006.

Q: What is Howard L. Quentzel, M.D., LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.

Active since September 14, 2006

130 DIVISION ST, DERBY, CT 06418(203) 732-7439 Get Directions Write a Review

NPPES record last updated: September 24, 2007. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Howard L. Quentzel, M.d., Llc NPPES

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

HOWARD L. QUENTZEL, M.D., LLC (NPI 1811092836) is a healthcare organization registered as a medical specialty in Derby, Connecticut and active in the NPI registry since September 2006. The organization lists Howard Quentzel, Director, as its authorized official.

NPPES Registry Identity

NPI1811092836

Entity TypeOrganization

Primary Taxonomy261QM2500X

Legal Business NameHOWARD L. QUENTZEL, M.D., LLC

Location Address130 DIVISION STDerby, CT 06418-1326

Mailing Address130 Division StDerby, CT 06418-1326 · (203) 732-7439 · Fax (203) 732-1425

Phone(203) 732-7439

Organization SubpartNo

Authorized OfficialHoward QuentzelDirector · (203) 732-7439

Enumeration DateSeptember 14, 2006

Last NPPES UpdateSeptember 24, 2007

✔ NPI 1811092836 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Medical SpecialtyAmbulatory Health Care Facilities

Taxonomy Code261QM2500X

Definition

An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to a specific area of medical specialization. Frequently used for Title V related Children's Specialty services or to meet specific public health needs (e.g., infectious diseases or breast and cervical cancer).

130 DIVISION ST, Derby, CT 06418

Open in Google Maps ↗

Other Identifiers 1

Medicare UPINB84042CT

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Howard L. Quentzel, M.d., Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by November 30, 2026

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date

StateConnecticutEnrollment IDO20111116000427Non-DME Part B · Clinic/Group PracticeDue dateNovember 30, 2026

Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Howard L. Quentzel, M.D., LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Howard Quentzel, M.D.

Infectious Disease

NPI 1063438406

130 DIVISION ST
Derby, CT 06418

(203) 732-7439

✔ PECOS✔ Accepts MedicareSame address

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

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 Howard L. Quentzel, M.D., LLC's NPI number?

The NPI number for Howard L. Quentzel, M.D., LLC is 1811092836. It was assigned to this organization in the NPPES registry on September 14, 2006.

Where is Howard L. Quentzel, M.D., LLC located?

Howard L. Quentzel, M.D., LLC is located at 130 Division St, Derby, CT 06418. The listed phone number is (203) 732-7439.

What is Howard L. Quentzel, M.D., LLC's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.

Is Howard L. Quentzel, M.D., LLC enrolled in Medicare?

Yes. Howard L. Quentzel, M.D., LLC is registered in the Medicare PECOS enrollment system.

When is Howard L. Quentzel, M.D., LLC's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Connecticut, Clinic/Group Practice) is due for revalidation by November 30, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Howard L. Quentzel, M.D., LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Infectious Disease) reassigns their Medicare billing to Howard L. Quentzel, M.D., LLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Howard L. Quentzel, M.D., LLC was last updated on September 24, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.