DR. SPENCER T TSENG MD
NPI 1790853117
Physical Medicine & Rehabilitation in Mc Lean, VA

Active since December 01, 2006PECOS EnrolledAccepts Medicare Assignment
8008 WESTPARK DR, MC LEAN, VA 22102(703) 287-4675(703) 922-1111 Get Directions Write a Review

NPPES record last updated: June 14, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Spencer T Tseng Md NPPES

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

DR. SPENCER T TSENG MD (NPI 1790853117) is an individual physical medicine & rehabilitation provider in Mc Lean, Virginia, licensed in Virginia (0101237028) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Pittsburgh School Of Medicine (2000).

NPPES Registry Identity

NPI1790853117
Entity TypeIndividualMale
Primary Taxonomy208100000X
Provider Legal NameDR. SPENCER T TSENGCredential: MD
Location Address8008 WESTPARK DRMc Lean, VA 22102-3109
Mailing Address2101 East Jefferson Street, Medicare Compliance Unit 6 WestRockville, MD 20852-4908 · (301) 816-6660 · Fax (301) 816-6308
Fax(703) 922-1111
Sole ProprietorNo
Medical School CMSUniversity Of Pittsburgh School Of MedicineGraduated 2000
Enumeration DateDecember 1, 2006
Last NPPES UpdateJune 14, 2021
NPPES CertifiedJune 14, 2021
✔ NPI 1790853117 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysical Medicine & RehabilitationAllopathic & Osteopathic Physicians
Taxonomy Code208100000X
License✔ Licensed in VA · 0101237028
Definition
Physical medicine and rehabilitation, also referred to as rehabilitation medicine, is the medical specialty concerned with diagnosing, evaluating, and treating patients with physical disabilities. These disabilities may arise from conditions affecting the musculoskeletal system such as neck and back pain, sports injuries, or other painful conditions affecting the limbs, such as carpal tunnel syndrome. Alternatively, the disabilities may result from neurological trauma or disease such as spinal cord injury, head injury or stroke. A physician certified in physical medicine and rehabilitation is often called a physiatrist. The primary goal of the physiatrist is to achieve maximal restoration of physical, psychological, social and vocational function through comprehensive rehabilitation. Pain management is often an important part of the role of the physiatrist. For diagnosis and evaluation, a physiatrist may include the techniques of electromyography to supplement the standard history, physical, x-ray and laboratory examinations. The physiatrist has expertise in the appropriate use of therapeutic exercise, prosthetics (artificial limbs), orthotics and mechanical and electrical devices.
8008 WESTPARK DR, Mc Lean, VA 22102

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Spencer T Tseng Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2062474364
PECOS Enrollment IDI20221223001134
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 Spencer Tseng reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Health Maintenance Organization
8008 WESTPARK DR
Mc Lean, VA 22102
  • Reassigned Medicare billing, District of Columbia and Virginia enrollments
  • Also billed through NPI 1699893537 (Virginia)
  • 2,492 clinicians in this Medicare group

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

Other Providers at the Same Location NPPES 20

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

Hospitalist
8008 WESTPARK DR
MC LEAN, VA 22102
Allergy & Immunology
8008 WESTPARK DR
MC LEAN, VA 22102
Nuclear Medicine
8008 WESTPARK DR
MC LEAN, VA 22102
Obstetrics & Gynecology
8008 WESTPARK DR
MC LEAN, VA 22102
Surgery
8008 WESTPARK DR
MC LEAN, VA 22102
Registered Nurse
8008 WESTPARK DR
MC LEAN, VA 22102
Internal Medicine
8008 WESTPARK DR
MC LEAN, VA 22102
Nurse Practitioner (Family)
8008 WESTPARK DR
MC LEAN, VA 22102

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 Spencer Tseng's NPI number?

The NPI number for Spencer Tseng is 1790853117. It was assigned to this individual provider in the NPPES registry on December 1, 2006.

Where is Spencer Tseng located?

Spencer Tseng practices at 8008 Westpark Dr, Mc Lean, VA 22102. The listed phone number is (703) 287-4675.

What is Spencer Tseng's specialty?

The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.

Is Spencer Tseng enrolled in Medicare?

Yes. Spencer Tseng is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Spencer Tseng's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Spencer Tseng reassigns Medicare benefits to Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc (Mc Lean, 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 Spencer 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 Spencer Tseng was last updated on June 14, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.