Laurence Peiperl, MD
Internal Medicine Physician · San Francisco, CA
Laurence Peiperl, MD is an internal medicine physician with a practice address in San Francisco, California, and NPI 1861543142, issued on Jan 15, 2007. Check the license (California G77718, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Laurence Peiperl
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- G77718 CA
Self-reported in NPPES; status is on the state search - Practice location
- 558 Clayton St, San Francisco, CA 94117
- Phone
- (415) 487-5632
- Enumerated
- Jan 15, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20081209000644); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1992
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 558 Clayton St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Charline Ziller, R.N.Registered Nurse1306269402
Verify Laurence Peiperl in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G77718Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
About as many Medicare Part D claims as the average internal medicine physician in 2024
3,184 Medicare Part D claims for 26 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 101 claims were for opioids.
Most prescribed
- Gabapentin232 claims
- Amlodipine Besylate193 claims
- Baclofen171 claims
- Trazodone Hcl156 claims
- Olanzapine130 claims
- Levothyroxine Sodium119 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 90.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- City And County OF San FranciscoSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Laurence Peiperl among 17,696 internal medicine physician records in California
Laurence Peiperl, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1992 · median 2004 among the 11,065 with a school on file
- Record last updated2007 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,318 internal medicine physician records list a practice address in San Francisco
They are 1,318 of the 38,143 NPPES records with a practice address in San Francisco, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in San Francisco → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Robert BrodySan Francisco, CA 941171801815600
- Kwok Chan, M.D.San Francisco, CA 941171063413714
- Diana Hilbert, M.D.San Francisco, CA 941171386642551
- William Kell, M.DSan Francisco, CA 941171528094547
- Kenneth Maybury, M.D.San Francisco, CA 941171295733459
Common questions
What is Laurence Peiperl, MD's NPI number?
Laurence Peiperl, MD's National Provider Identifier (NPI) is 1861543142, issued on Jan 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Laurence Peiperl, MD located?
The NPPES record lists a practice address at 558 Clayton St, San Francisco, CA, 94117. Phone: (415) 487-5632. Providers update this record themselves, so call before visiting.
How can I verify Laurence Peiperl, MD's license?
NPPES lists California license number G77718, 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 Laurence Peiperl, MD prescribe under Medicare Part D?
In 2024, Laurence Peiperl, MD had 3,184 Medicare Part D claims for 26 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Laurence Peiperl, MD's MIPS final score?
The 2023 MIPS final score is 90.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.