Caroline Castillo, M.D.
NPI 1114217742 · Family Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Caroline Castillo, M.D. is a Family Medicine Physician provider in San Francisco, CA (NPI 1114217742).
Provider details
- NPI number
- 1114217742
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
326 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 125 | $109 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 52 | $74 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 46 | $19 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 28 | $88 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 22 | $156 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 125 | 47 |
| Amlodipine Besylate | 78 | 26 |
| Lisinopril | 74 | 19 |
| Levothyroxine Sodium | 57 | 21 |
| Gabapentin | 55 | 13 |
| Sertraline Hcl | 37 | — |
| Metformin Hcl |
Practice location
Mailing address
Additional practice locations (1)
- 2356 Sutter StSan Francisco, CA 94115Phone: (158) 857-7884
Registry dates
- Enumerated
- 2011-04-16
- Last updated
- 2019-05-08
Frequently asked questions
- What is Caroline Castillo's NPI number?
- Caroline Castillo's National Provider Identifier (NPI) is 1114217742, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Caroline Castillo's specialty?
- Caroline Castillo is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Caroline Castillo located?
- Caroline Castillo's practice location on file with NPPES is 2356 Sutter St, San Francisco, CA 94115.
- What is Caroline Castillo's phone number?
- The practice phone number listed in the NPPES registry for Caroline Castillo is (158) 857-7884.
- Does Caroline Castillo accept Medicare?
- Caroline Castillo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Caroline Castillo's NPI active?
- Yes — Caroline Castillo's NPI (1114217742) is active in the NPPES registry as of the last update on 2019-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.