Guiselle Clark, M.D.
NPI 1124254024 · Hospitalist Physician · Santa Monica, CA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Guiselle Clark, M.D. is a Hospitalist Physician provider in Santa Monica, CA (NPI 1124254024).
Provider details
- NPI number
- 1124254024
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A114924 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bupropion Hclbrand: Bupropion Hcl Sr | 44 | 12 |
| Furosemide | 40 | 34 |
| Metformin Hclbrand: Metformin Hcl Er | 26 | 15 |
| Lisinopril | 21 | 13 |
| Dabigatran Etexilate Mesylatebrand: Pradaxa | 18 | 12 |
| Cefpodoxime Proxetil | 16 | 16 |
| Atorvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-06-05
- Last updated
- 2021-11-30
Frequently asked questions
- What is Guiselle Clark's NPI number?
- Guiselle Clark's National Provider Identifier (NPI) is 1124254024, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Guiselle Clark's specialty?
- Guiselle Clark is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Guiselle Clark located?
- Guiselle Clark's practice location on file with NPPES is 1225 15th St, Santa Monica, CA 90404-1101.
- What is Guiselle Clark's phone number?
- The practice phone number listed in the NPPES registry for Guiselle Clark is (310) 319-4598.
- Does Guiselle Clark accept Medicare?
- Guiselle Clark is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Guiselle Clark's NPI active?
- Yes — Guiselle Clark's NPI (1124254024) is active in the NPPES registry as of the last update on 2021-11-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.