David Siemien
NPI 1457087108 · Physical Therapy Assistant · Rockville, MD
David Siemien is a Physical Therapy Assistant provider in Rockville, MD (NPI 1457087108).
Provider details
- NPI number
- 1457087108
- Entity type
- Individual
- Primary specialty
- Physical Therapy AssistantRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- A5716 (MD)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-07-26
- Last updated
- 2022-07-26
- Certified
- 2022-07-26
Frequently asked questions
- What is David Siemien's NPI number?
- David Siemien's National Provider Identifier (NPI) is 1457087108, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Siemien's specialty?
- David Siemien is listed in the NPPES registry with a primary specialty of Physical Therapy Assistant (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is David Siemien located?
- David Siemien's practice location on file with NPPES is 15201 Shady Grove Rd Ste 106, Rockville, MD 20850-3217.
- What is David Siemien's phone number?
- The practice phone number listed in the NPPES registry for David Siemien is (301) 412-0686.
- Is David Siemien's NPI active?
- Yes — David Siemien's NPI (1457087108) is active in the NPPES registry as of the last update on 2022-07-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.