DR. LAURENCE PEIPERL MD
NPI 1861543142
Internal Medicine in San Francisco, CA
About Dr. Laurence Peiperl Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LAURENCE PEIPERL MD (NPI 1861543142) is an individual internal medicine provider in San Francisco, California, licensed in California (G77718) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (1992).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Laurence Peiperl Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Laurence Peiperl reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94114
- Reassigned Medicare billing, California enrollment
- 1,573 clinicians in this Medicare group
San Francisco, CA 94110
- Reassigned Medicare billing, California enrollment
- 637 clinicians in this Medicare group
Palo Alto, CA 94306
- Reassigned Medicare billing, California enrollment
- Also billed through NPI 1043354020 (California), NPI 1629301346 (California)
- 2,460 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94117 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94117
SAN FRANCISCO, CA 94117
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Laurence Peiperl's NPI number?
The NPI number for Laurence Peiperl is 1861543142. It was assigned to this individual provider in the NPPES registry on January 15, 2007.
Where is Laurence Peiperl located?
Laurence Peiperl practices at 558 Clayton St Haight Ashbury Free Medical Clinic, San Francisco, CA 94117. The listed phone number is (415) 487-5632.
What is Laurence Peiperl's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Laurence Peiperl enrolled in Medicare?
Yes. Laurence Peiperl is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Laurence Peiperl's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Laurence Peiperl reassigns Medicare benefits to 3 organizations: City & County Of San Francisco (San Francisco, CA), University Of California Sfgh Medical Group (San Francisco, CA) and County Of Santa Clara (Palo Alto, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Laurence Peiperl's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Laurence Peiperl was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Laurence Peiperl, MD · NPI 1861543142
Internal Medicine physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since January 15, 2007.
## Identity
- **NPI:** 1861543142 (Entity type: Individual)
- **Enumerated:** January 15, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** G77718 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 558 CLAYTON ST, HAIGHT ASHBURY FREE MEDICAL CLINIC, San Francisco, CA 94117-2907
- **Phone:** (415) 487-5632
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): City & County Of San Francisco (NPI 1588606206, San Francisco, CA); University Of California Sfgh Medical Group (NPI 1356696215, San Francisco, CA); County Of Santa Clara (NPI 1144330614, Palo Alto, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, San Francisco School Of Medicine, class of 1992
## Record status
- **NPPES last updated:** July 8, 2007
- **Other identifiers:** Medicare UPIN H27962
---
Source: [NPI Profile](https://npiprofile.com/npi/1861543142) · Data from the CMS NPPES public registry.