Spencer Tseng, MD
NPI 1790853117 · Physical Medicine & Rehabilitation Physician · Mc Lean, VA
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Spencer Tseng, MD is a Physical Medicine & Rehabilitation Physician provider in Mc Lean, VA (NPI 1790853117).
Provider details
- NPI number
- 1790853117
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 0101237028 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 181 | 71 |
| Pregabalin | 131 | 66 |
| Methylprednisolone | 122 | 104 |
| Baclofen | 105 | 43 |
| Duloxetine Hcl | 97 | 32 |
| Meloxicam | 47 | 24 |
| Tizanidine Hcl | 19 | 12 |
| Hydrocodone/Acetaminophen |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$96 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-01
- Last updated
- 2021-06-14
- Certified
- 2021-06-14
Frequently asked questions
- What is Spencer Tseng's NPI number?
- Spencer Tseng's National Provider Identifier (NPI) is 1790853117, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Spencer Tseng's specialty?
- Spencer Tseng is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Spencer Tseng located?
- Spencer Tseng's practice location on file with NPPES is 8008 Westpark Dr, Mc Lean, VA 22102-3109.
- What is Spencer Tseng's phone number?
- The practice phone number listed in the NPPES registry for Spencer Tseng is (703) 287-4675.
- Does Spencer Tseng accept Medicare?
- Spencer Tseng is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Spencer Tseng's NPI active?
- Yes — Spencer Tseng's NPI (1790853117) is active in the NPPES registry as of the last update on 2021-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.