Marsha Siebenmorgen, PHD, LP
NPI 1649670415 · Clinical Child & Adolescent Psychologist · Dallas, TX
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marsha Siebenmorgen, PHD, LP is a Clinical Child & Adolescent Psychologist provider in Dallas, TX (NPI 1649670415).
Provider details
- NPI number
- 1649670415
- Entity type
- Individual
- Primary specialty
- Clinical Child & Adolescent PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD, LP
- Sex
- Female
- Sole proprietor
- No
- License
- 2567 (KS)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
- 2014-08-29
- Last updated
- 2018-03-12
Frequently asked questions
- What is Marsha Siebenmorgen's NPI number?
- Marsha Siebenmorgen's National Provider Identifier (NPI) is 1649670415, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marsha Siebenmorgen's specialty?
- Marsha Siebenmorgen is listed in the NPPES registry with a primary specialty of Clinical Child & Adolescent Psychologist (Behavioral Health & Social Service Providers).
- Where is Marsha Siebenmorgen located?
- Marsha Siebenmorgen's practice location on file with NPPES is 2222 Medical District Dr, Dallas, TX 75235-8075.
- What is Marsha Siebenmorgen's phone number?
- The practice phone number listed in the NPPES registry for Marsha Siebenmorgen is (214) 867-6923.
- Does Marsha Siebenmorgen accept Medicare?
- Marsha Siebenmorgen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marsha Siebenmorgen's NPI active?
- Yes — Marsha Siebenmorgen's NPI (1649670415) is active in the NPPES registry as of the last update on 2018-03-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.