ERIC FAN, M.D. LLC
NPI 1700100781
Internal Medicine in New Haven, CT

Q: What is Eric Fan, M.D. LLC's NPI number?

The NPI number for Eric Fan, M.D. LLC is 1700100781. It was assigned to this organization in the NPPES registry on March 20, 2010.

Q: What is Eric Fan, M.D. LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since March 20, 2010

200 ORCHARD ST, SUITE 303, NEW HAVEN, CT 06511(203) 867-5600(203) 867-5604 Get Directions Write a Review

NPPES record last updated: March 20, 2010. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Eric Fan, M.d. Llc NPPES

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

ERIC FAN, M.D. LLC (NPI 1700100781) is a healthcare organization registered as an internal medicine in New Haven, Connecticut and active in the NPI registry since March 2010. The organization lists Eric Fan, Manager, as its authorized official.

NPPES Registry Identity

NPI1700100781

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameERIC FAN, M.D. LLC

Location Address200 ORCHARD ST, SUITE 303New Haven, CT 06511-5363

Mailing Address200 Orchard St, Suite 303New Haven, CT 06511-5363 · (203) 867-5600 · Fax (203) 867-5604

Phone(203) 867-5600

Fax(203) 867-5604

Organization SubpartNo

Authorized OfficialEric FanManager · (203) 867-5600

Enumeration DateMarch 20, 2010

✔ NPI 1700100781 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in CT · 038797

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

200 ORCHARD ST, New Haven, CT 06511

Open in Google Maps ↗

Other Identifiers 1

Medicare UPINH40661CT

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)

Eric Fan, M.d. Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

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

Clinician (1)

Eric Fan, M.D.

Internal Medicine

NPI 1114966561

200 ORCHARD ST 303
New Haven, CT 06511

(203) 867-5600

✔ 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 Eric Fan, M.D. LLC's NPI number?

The NPI number for Eric Fan, M.D. LLC is 1700100781. It was assigned to this organization in the NPPES registry on March 20, 2010.

Where is Eric Fan, M.D. LLC located?

Eric Fan, M.D. LLC is located at 200 Orchard St Suite 303, New Haven, CT 06511. The listed phone number is (203) 867-5600.

What is Eric Fan, M.D. LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Eric Fan, M.D. LLC enrolled in Medicare?

Yes. Eric Fan, M.D. LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Eric Fan, M.D. LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Eric Fan, 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 Eric Fan, M.D. LLC was last updated on March 20, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.