1. Home
  2. Directory
  3. Virginia
  4. Alexandria
  5. Internal Medicine
  6. NPI Profile

MICHAEL TSENG MD
NPI 1497379903
Internal Medicine - Gastroenterology in Alexandria, VA

Active since June 01, 2020PECOS Enrolled
6354 WALKER LN STE 400, ALEXANDRIA, VA 22310(844) 466-8244 Get Directions Write a Review

NPPES record last updated: June 15, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Michael Tseng Md NPPES

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

MICHAEL TSENG MD (NPI 1497379903) is an individual gastroenterology provider in Alexandria, Virginia, licensed in Virginia (0101288936) and active in the NPI registry since June 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1497379903
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameMICHAEL TSENGCredential: MD
Location Address6354 WALKER LN STE 400Alexandria, VA 22310-3252
Mailing Address6354 Walker Ln Ste 400Alexandria, VA 22310-3252
Phone(844) 466-8244
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateJune 1, 2020
Last NPPES UpdateJune 15, 2026
NPPES CertifiedJune 15, 2026
✔ NPI 1497379903 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in VA · 0101288936
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
6354 WALKER LN STE 400, Alexandria, VA 22310
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael Tseng Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4284054073
PECOS Enrollment IDI20260821001923
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Michael Tseng reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Inova Health Care Services
7.1 mi
Internal Medicine
3300 GALLOWS RD, PHYSICIAN SERVICES
Falls Church, VA 22042
  • Reassigned Medicare billing, District of Columbia and Virginia enrollments
  • Also billed through NPI 1588717755 (Virginia), NPI 1275097123 (Virginia)
  • 2,618 clinicians in this Medicare group
NPI 1952320061 (703) 321-2627

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 22310 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 13

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. EYERUSALEM BERHANU AKPAN M.D.
Internal Medicine
6354 WALKER LN STE 400
ALEXANDRIA, VA 22310
Fairfax County (571) 472-7234
SUSAN M ZEMITIS FNP
Nurse Practitioner (Family)
6354 WALKER LN STE 400
ALEXANDRIA, VA 22310
Fairfax County (571) 472-7320
RUFAAT MANDO
Internal Medicine (Gastroenterology)
6354 WALKER LN STE 400
ALEXANDRIA, VA 22310
Fairfax County (571) 472-7320
MRS. ERICA M.R. MCBRIDE M.D.
Internal Medicine (Rheumatology)
6354 WALKER LN STE 400
ALEXANDRIA, VA 22310
Fairfax County (571) 472-7324
SARASI JAYARATNE DO
Internal Medicine (Endocrinology, Diabetes & Metabolism)
6354 WALKER LN STE 400
ALEXANDRIA, VA 22310
Fairfax County (571) 472-7324
CASEY ANN REILLY PA-C, MMSC
Physician Assistant
6354 WALKER LN STE 400
ALEXANDRIA, VA 22310
Fairfax County (571) 472-7320
ASSAD A MUNIS D.O.
Internal Medicine (Gastroenterology)
6354 WALKER LN STE 400
ALEXANDRIA, VA 22310
Fairfax County (571) 472-7320
EMAD M ABUHAMDA MD
Internal Medicine (Gastroenterology)
6354 WALKER LN STE 400
ALEXANDRIA, VA 22310
Fairfax County (571) 472-7320

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 Michael Tseng's NPI number?

The NPI number for Michael Tseng is 1497379903. It was assigned to this individual provider in the NPPES registry on June 1, 2020.

Where is Michael Tseng located?

Michael Tseng practices at 6354 Walker Ln Ste 400, Alexandria, VA 22310. The listed phone number is (844) 466-8244.

What is Michael Tseng's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Michael Tseng enrolled in Medicare?

Yes. Michael Tseng is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Michael Tseng's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Tseng reassigns Medicare benefits to Inova Health Care Services (Falls Church, VA). The 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 Michael Tseng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Michael Tseng was last updated on June 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.