Caroline Riddle, MD
NPI 1205325958 · Family Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Caroline Riddle, MD is a Family Medicine Physician provider in San Francisco, CA (NPI 1205325958).
Provider details
- NPI number
- 1205325958
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD-21948 (HI)
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
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
440 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 132 | $91 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 106 | $129 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 69 | $9 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 30 | $131 |
| Administration of Influenza Virus VaccineG0008 | 22 | $33 |
| Automated Urinalysis Test81003 | 21 | $2 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 25 | 13 |
| Losartan Potassium | 20 | — |
| Rosuvastatin Calcium | 17 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (1)
- 1010 Pensacola StHonolulu, HI 96814-2118Phone: (808) 432-2000
Registry dates
- Enumerated
- 2018-05-08
- Last updated
- 2022-07-11
- Certified
- 2022-07-11
Frequently asked questions
- What is Caroline Riddle's NPI number?
- Caroline Riddle's National Provider Identifier (NPI) is 1205325958, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Caroline Riddle's specialty?
- Caroline Riddle is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Caroline Riddle located?
- Caroline Riddle's practice location on file with NPPES is 1285 4th St, San Francisco, CA 94158-2249.
- What is Caroline Riddle's phone number?
- The practice phone number listed in the NPPES registry for Caroline Riddle is (415) 291-0480.
- Does Caroline Riddle accept Medicare?
- Caroline Riddle is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Caroline Riddle's NPI active?
- Yes — Caroline Riddle's NPI (1205325958) is active in the NPPES registry as of the last update on 2022-07-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.