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INTERNAL MEDICINE PRACTICE ASSOCIATES PC
NPI 1669403051
Internal Medicine in Potomac Falls, VA

Active since July 05, 2006
46090 LAKE CENTER PLZ, 201, POTOMAC FALLS, VA 20165(703) 444-6544(703) 444-1121 Get Directions Write a Review

NPPES record last updated: October 31, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Internal Medicine Practice Associates Pc NPPES

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

INTERNAL MEDICINE PRACTICE ASSOCIATES PC (NPI 1669403051) is a healthcare organization registered as an internal medicine in Potomac Falls, Virginia and active in the NPI registry since July 2006. The organization lists Alok Rustogi, Director, as its authorized official.

NPPES Registry Identity

NPI1669403051
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameINTERNAL MEDICINE PRACTICE ASSOCIATES PC
Location Address46090 LAKE CENTER PLZ, 201Potomac Falls, VA 20165-5876
Mailing Address46090 Lake Center Plz, 201Potomac Falls, VA 20165-5876 · (703) 444-6544 · Fax (703) 444-1121
Phone(703) 444-6544
Fax(703) 444-1121
Organization SubpartNo
Authorized OfficialAlok RustogiDirector · (703) 880-5539
Enumeration DateJuly 5, 2006
Last NPPES UpdateOctober 31, 2011
✔ NPI 1669403051 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in VA · 0101236706
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.
46090 LAKE CENTER PLZ, Potomac Falls, VA 20165
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Other Identifiers 3

Medicare PINC09957VA
Medicare PING02542DC
OtherDF6585Medicare Railroad

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)

Internal Medicine Practice Associates Pc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Internal Medicine Practice Associates PC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Alok Rustogi, MD
Hospitalist
NPI 1730116575
46090 LAKE CENTER PLZ 201
Potomac Falls, VA 20165
(703) 489-0508
✔ PECOS✔ Accepts MedicareSame address
Caralyn Ivey, FNP
Nurse Practitioner
NPI 1568979748
19420 GOLF VISTA PLZ STE 240
Leesburg, VA 20176
(703) 444-6544
✔ PECOS✔ Accepts Medicare5.2 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 Internal Medicine Practice Associates PC's NPI number?

The NPI number for Internal Medicine Practice Associates PC is 1669403051. It was assigned to this organization in the NPPES registry on July 5, 2006.

Where is Internal Medicine Practice Associates PC located?

Internal Medicine Practice Associates PC is located at 46090 Lake Center Plz 201, Potomac Falls, VA 20165. The listed phone number is (703) 444-6544.

What is Internal Medicine Practice Associates PC's specialty?

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

Is Internal Medicine Practice Associates PC enrolled in Medicare?

Yes. Internal Medicine Practice Associates PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Internal Medicine Practice Associates PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Internal Medicine Practice Associates PC, in Hospitalist and Nurse Practitioner. 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, 1 practice at this address and 2 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 Internal Medicine Practice Associates PC was last updated on October 31, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.