Steven Speiser, M.D.
NPI 1598709990 · Psychiatry Physician · Kissimmee, FL
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Speiser, M.D. is a Psychiatry Physician provider in Kissimmee, FL (NPI 1598709990).
Provider details
- NPI number
- 1598709990
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- ME 38964 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2006-06-15
- Last updated
- 2023-03-07
Frequently asked questions
- What is Steven Speiser's NPI number?
- Steven Speiser's National Provider Identifier (NPI) is 1598709990, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Speiser's specialty?
- Steven Speiser is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Speiser located?
- Steven Speiser's practice location on file with NPPES is 206 Park Place Blvd, Kissimmee, FL 34741-2344.
- What is Steven Speiser's phone number?
- The practice phone number listed in the NPPES registry for Steven Speiser is (407) 846-0023.
- Does Steven Speiser accept Medicare?
- Steven Speiser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Speiser's NPI active?
- Yes — Steven Speiser's NPI (1598709990) is active in the NPPES registry as of the last update on 2023-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.