Charlotte Sadler, M.D.
NPI 1598044117 · Emergency Medicine Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Charlotte Sadler, M.D. is a Emergency Medicine Physician provider in San Diego, CA (NPI 1598044117).
Provider details
- NPI number
- 1598044117
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A118033 (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 tenure28% of score
14 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
211 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Residence Visit for Established Patient With Low Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99348 | 65 | $79 |
| Emergency Department Visit With High Level of Medical Decision Making99285 | 48 | $172 |
| Management of Oxygen Chamber Therapy99183 | 35 | $106 |
| Residence Visit for Established Patient With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 40 Minutes99349 | 31 | $131 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 18 | $119 |
| Residence Visit for Established Patient With Straightforward Medical Decision Making, Per Day, If Using Time, at Least 15 Minutes99347 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-08-12
- Last updated
- 2023-05-23
- Certified
- 2023-05-23
Frequently asked questions
- What is Charlotte Sadler's NPI number?
- Charlotte Sadler's National Provider Identifier (NPI) is 1598044117, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Charlotte Sadler's specialty?
- Charlotte Sadler is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Charlotte Sadler located?
- Charlotte Sadler's practice location on file with NPPES is 200 W Arbor Dr # 8925, San Diego, CA 92103-1911.
- What is Charlotte Sadler's phone number?
- The practice phone number listed in the NPPES registry for Charlotte Sadler is (563) 508-6872.
- Does Charlotte Sadler accept Medicare?
- Charlotte Sadler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Charlotte Sadler's NPI active?
- Yes — Charlotte Sadler's NPI (1598044117) is active in the NPPES registry as of the last update on 2023-05-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.