1. Home
  2. Directory
  3. Maryland
  4. Annapolis
  5. Internal Medicine
  6. NPI Profile

ANNAPOLIS INFECTIOUS DISEASE ASSOCIATES LLP
NPI 1427259654
Internal Medicine - Infectious Disease in Annapolis, MD

Active since May 28, 2007
1127 WEST ST STE 105, ANNAPOLIS, MD 21401(410) 573-9511(410) 573-4816 Get Directions Write a Review

NPPES record last updated: May 5, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 5, 2026, Sep 13, 2022 (2 updates tracked since 2022).

About Annapolis Infectious Disease Associates Llp NPPES

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

ANNAPOLIS INFECTIOUS DISEASE ASSOCIATES LLP (NPI 1427259654) is a healthcare organization registered as an infectious disease in Annapolis, Maryland and active in the NPI registry since May 2007. The organization lists Jennifer Arnold, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1427259654
Entity TypeOrganization
Primary Taxonomy207RI0200X
Legal Business NameANNAPOLIS INFECTIOUS DISEASE ASSOCIATES LLP
Location Address1127 WEST ST STE 105Annapolis, MD 21401-4284
Mailing AddressPo Box 9689Arnold, MD 21012-0689 · (410) 573-9511 · Fax (410) 573-4816
Phone(410) 573-9511
Fax(410) 573-4816
Organization SubpartNo
Authorized OfficialJennifer ArnoldOffice Manager · (410) 573-9511
Enumeration DateMay 28, 2007
Last NPPES UpdateMay 5, 20262 updates tracked since enumeration
NPPES CertifiedMay 5, 2026
✔ NPI 1427259654 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Infectious DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RI0200X
Definition
An internist who deals with infectious diseases of all types and in all organ systems. Conditions requiring selective use of antibiotics call for this special skill. This physician often diagnoses and treats AIDS patients and patients with fevers which have not been explained. Infectious disease specialists may also have expertise in preventive medicine and travel medicine.
1127 WEST ST STE 105, Annapolis, MD 21401
Open in Google Maps ↗

Other Identifiers 3

Medicaid214005500MD
OtherR996DC · Carefirst Bcbs
OtherLK63ANMD · Carefirst Bcbs

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)

Annapolis Infectious Disease Associates Llp 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 Annapolis Infectious Disease Associates LLP, which bills Medicare for the services this clinician delivers.

Clinician (1)

Ellen Yang, M.D.
Infectious Disease
NPI 1912955873
49 OLD SOLOMONS ISLAND RD SUITE 104
Annapolis, MD 21401
(410) 573-9511
✔ PECOS✔ Accepts Medicare1.3 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 Annapolis Infectious Disease Associates LLP's NPI number?

The NPI number for Annapolis Infectious Disease Associates LLP is 1427259654. It was assigned to this organization in the NPPES registry on May 28, 2007.

Where is Annapolis Infectious Disease Associates LLP located?

Annapolis Infectious Disease Associates LLP is located at 1127 West St Ste 105, Annapolis, MD 21401. The listed phone number is (410) 573-9511.

What is Annapolis Infectious Disease Associates LLP's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.

Is Annapolis Infectious Disease Associates LLP enrolled in Medicare?

Yes. Annapolis Infectious Disease Associates LLP is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Annapolis Infectious Disease Associates LLP?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Infectious Disease) reassigns their Medicare billing to Annapolis Infectious Disease Associates LLP. 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 Annapolis Infectious Disease Associates LLP was last updated on May 5, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.