Caroline Marie Riddle, MD
Family Medicine Physician · San Francisco, CA
Caroline Marie Riddle, MD is a family medicine physician with a practice address in San Francisco, California, and NPI 1205325958, issued on May 8, 2018. Check the license (California A178157, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Caroline Marie Riddle
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- A178157 CA
MD-21948 HI
Self-reported in NPPES; status is on the state search - Practice location
- 1285 4TH St, San Francisco, CA 94158
- Phone
- (415) 291-0480
- Enumerated
- May 8, 2018
- Record last updated
- Jul 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20240326002074); accepts Medicare assignment
- Medical or professional school
- Albany Medical College Of Union University, 2018
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 1285 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Veronica Jow, M.D.Sports Medicine (Internal Medicine) Physician1053597005
- Lillian Khan, MSN RN FNP-CNurse Practitioner1285391185
- Brian O'Donnell, PAPhysician Assistant1790740900
- Gordon Sanford, PA-CPhysician Assistant1801033055
- Pooja UdeshiPhysician Assistant1417838368
Verify Caroline Marie Riddle in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A178157Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average family medicine physician in 2024
330 Medicare Part D claims for 123 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 12 claims were for opioids.
Most prescribed
- Atorvastatin Calcium25 claims
- Losartan Potassium20 claims
- Rosuvastatin Calcium17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
One hospital affiliation
- Valley View Hospital AssociationCarbondale, CO · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Caroline Marie Riddle among 17,133 family medicine physician records in California
Caroline Marie Riddle, MD is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 82% of them.
- NPI issued2018 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2018 · median 2005 among the 10,652 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in California
There are 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in San Francisco → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Madeline Bell, MDSan Francisco, CA 941581912526724
- Ginger Cupit, D.O.San Francisco, CA 941581356795876
- Stephanie EllisSan Francisco, CA 941581639602998
- Rene Gonzalez, M.D.San Francisco, CA 941581821356791
- Brian HuangSan Francisco, CA 941581942863790
- Blake Kinsel, DOSan Francisco, CA 941581356924831
- Ronald Labuguen, M.D.San Francisco, CA 941581881639417
- Rutvij Pandya, MDSan Francisco, CA 941581043848351
Common questions
What is Caroline Marie Riddle, MD's NPI number?
Caroline Marie Riddle, MD's National Provider Identifier (NPI) is 1205325958, issued on May 8, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Caroline Marie Riddle, MD located?
The NPPES record lists a practice address at 1285 4TH St, San Francisco, CA, 94158. Phone: (415) 291-0480. Providers update this record themselves, so call before visiting.
How can I verify Caroline Marie Riddle, MD's license?
NPPES lists California license number A178157, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Caroline Marie Riddle, MD prescribe under Medicare Part D?
In 2024, Caroline Marie Riddle, MD had 330 Medicare Part D claims for 123 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.