Lauren Christine Ritz, M.D.
Student in an Organized Health Care Education/Training Program · San Francisco, CA
Lauren Christine Ritz, M.D. is a student in an organized health care education/training program with a practice address in San Francisco, California, and NPI 1922340504, issued on Mar 21, 2013. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Lauren Christine Ritz
- Credential
- M.D.
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- Ucsf Department OF Surgery, San Francisco, CA 94143
- Phone
- (415) 476-2773
- Enumerated
- Mar 21, 2013
- Record last updated
- Feb 11, 2022
- Medicare enrollment
- Enrolled (PECOS I20190814002485); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 40,652 in California → Look up another NPI →
Also registered at Ucsf Department OF Surgery
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nusaiba Baker, MD, PHDStudent in an Organized Health Care Education/Training Program1841930476
- Lucia CalthorpeSurgery Physician1164163267
- Audrey Choi, MDStudent in an Organized Health Care Education/Training Program1790084200
- Cyndi Chung, M.D. M.B.A.Plastic Surgery Physician1962897256
- Colleen Flanagan, MDSurgery Physician1740818772
- James Gardner, M.D., PH.D.Surgery Physician1215293477
Verify Lauren Christine Ritz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26.4 times the Medicare Part D claims of the average student in an organized health care education/training program in 2024
4,888 Medicare Part D claims for 773 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 301 claims were for opioids.
Most prescribed
- Atorvastatin Calcium260 claims
- Levothyroxine Sodium195 claims
- Lisinopril187 claims
- Losartan Potassium183 claims
- Amlodipine Besylate167 claims
- Hydrocodone-Acetaminophen150 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.
Bills Medicare through one group practice
- Permanente Medical Group IncRancho Cordova, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lauren Christine Ritz among 40,652 student in an organized health care education/training program records in California
Lauren Christine Ritz, M.D. is one of 40,652 student in an organized health care education/training program records with a practice address in California. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 7% of them.
- NPI issued2013 · 7% of these records are older, 91% newer
- In a Medicare fileYes · 16% of these records are
- In the CMS Doctors and Clinicians fileYes · 6% of these records are
- Graduated2013 · median 2017 among the 2,409 with a school on file
- Record last updated2022 · 26% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3,035 student in an organized health care education/training program records list a practice address in San Francisco
They are 3,035 of the 38,143 NPPES records with a practice address in San Francisco, and 40,652 student in an organized health care education/training program records in California.
All 40,652 in California → Every provider in San Francisco → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Andrew Bellinger, M.D., PH.D.San Francisco, CA 941431831327402
- Molly Burnett, MDSan Francisco, CA 941431619107638
- Sheila Chan, M.D.San Francisco, CA 941431487895793
- Fred Chen, M.D.San Francisco, CA 941431932390325
- Jeffrey Ghassemi, M.D., M.P.H.San Francisco, CA 941431972746253
- Vasantha Jotwani, M.D.San Francisco, CA 941431043448996
- Vy-Van Le, MDSan Francisco, CA 941431265661136
- Katherine Naidu, M.D.San Francisco, CA 941431265668115
Common questions
What is Lauren Christine Ritz, M.D.'s NPI number?
Lauren Christine Ritz, M.D.'s National Provider Identifier (NPI) is 1922340504, issued on Mar 21, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Lauren Christine Ritz, M.D. located?
The NPPES record lists a practice address at Ucsf Department OF Surgery, San Francisco, CA, 94143. Phone: (415) 476-2773. Providers update this record themselves, so call before visiting.
How can I verify Lauren Christine Ritz, M.D.'s license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Lauren Christine Ritz, M.D. prescribe under Medicare Part D?
In 2024, Lauren Christine Ritz, M.D. had 4,888 Medicare Part D claims for 773 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.