RIDGEWOOD INFECTIOUS DISEASE ASSOCIATES, PA
NPI 1487851903
Specialist in Ridgewood, NJ

Q: What is Ridgewood Infectious Disease Associates, PA's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Active since June 28, 2007

141 DAYTON ST, SUITE 201, RIDGEWOOD, NJ 07450(201) 447-6468(201) 447-3189 Get Directions Write a Review

NPPES record last updated: April 20, 2008. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Ridgewood Infectious Disease Associates, Pa NPPES

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

RIDGEWOOD INFECTIOUS DISEASE ASSOCIATES, PA (NPI 1487851903) is a healthcare organization registered as a specialist in Ridgewood, New Jersey and active in the NPI registry since June 2007. The organization lists Gary G Knackmuhs, Delegated Official, as its authorized official.

NPPES Registry Identity

NPI1487851903

Entity TypeOrganization

Primary Taxonomy174400000X

Legal Business NameRIDGEWOOD INFECTIOUS DISEASE ASSOCIATES, PA

Location Address141 DAYTON ST, SUITE 201Ridgewood, NJ 07450-4496

Mailing Address141 Dayton St, Suite 201Ridgewood, NJ 07450-4496 · (201) 447-6468 · Fax (201) 447-3189

Phone(201) 447-6468

Fax(201) 447-3189

Organization SubpartNo

Authorized OfficialGary G KnackmuhsDelegated Official · (201) 447-6468

Enumeration DateJune 28, 2007

Last NPPES UpdateApril 20, 2008

✔ NPI 1487851903 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in NJ · 25MA03896800

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

141 DAYTON ST, Ridgewood, NJ 07450

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Other Identifiers 5

Other1084470NJ · Aetna Hmo Group #

Medicaid3240509NJ

Other7117748NJ · Aetna Ppo Group #

Medicare PIN569689NJ

OtherCM1037NJ · Railroad Mcr Group #

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ridgewood Infectious Disease Associates, Pa is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 4 clinicians reassign Medicare billing to Ridgewood Infectious Disease Associates, PA, which bills Medicare for the services they deliver. Of these, 4 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (4)

Lucy Cheng, M.D.

Infectious Disease

NPI 1942509625

947 LINWOOD AVE STE 2E
Ridgewood, NJ 07450

(201) 447-6468

✔ PECOS✔ Accepts Medicare1.6 mi

Neil Gaffin, M.D.

Infectious Disease

NPI 1649259045

947 LINWOOD AVE SUITE 2E
Ridgewood, NJ 07450

(201) 447-6468

✔ PECOS✔ Accepts Medicare1.6 mi

Carol Sotsky, M.D.

Infectious Disease

NPI 1710966064

947 LINWOOD AVE SUITE 2E
Ridgewood, NJ 07450

(201) 447-6468

✔ PECOS✔ Accepts Medicare1.6 mi

Simon Tsiouris, M.D.

Infectious Disease

NPI 1114085040

947 LINWOOD AVE SUITE 2E
Ridgewood, NJ 07450

(201) 447-6468

✔ PECOS✔ Accepts Medicare1.6 mi

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 Ridgewood Infectious Disease Associates, PA's NPI number?

The NPI number for Ridgewood Infectious Disease Associates, PA is 1487851903. It was assigned to this organization in the NPPES registry on June 28, 2007.

Where is Ridgewood Infectious Disease Associates, PA located?

Ridgewood Infectious Disease Associates, PA is located at 141 Dayton St Suite 201, Ridgewood, NJ 07450. The listed phone number is (201) 447-6468.

What is Ridgewood Infectious Disease Associates, PA's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Ridgewood Infectious Disease Associates, PA enrolled in Medicare?

Yes. Ridgewood Infectious Disease Associates, PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Ridgewood Infectious Disease Associates, PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 4 clinicians, all in Infectious Disease, reassign their Medicare billing to Ridgewood Infectious Disease Associates, PA. 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. Of these, 4 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Ridgewood Infectious Disease Associates, PA was last updated on April 20, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.