DR. PETER JOSEPH BOXLEY MD
NPI 1972243566
Hospitalist in San Francisco, CA
About Dr. Peter Joseph Boxley Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PETER JOSEPH BOXLEY MD (NPI 1972243566) is an individual hospitalist provider in San Francisco, California, licensed in Illinois (036171940) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS, is affiliated with Northwestern Lake Forest Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Peter Joseph Boxley 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwestern Lake Forest Hospital
Acute Care Hospitals · Lake Forest, ILUniversity Of Illinois Hospital And Clinics
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94143 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94143
SAN FRANCISCO, CA 94143
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 Peter Boxley's NPI number?
The NPI number for Peter Boxley is 1972243566. It was assigned to this individual provider in the NPPES registry on March 31, 2022.
Where is Peter Boxley located?
Peter Boxley practices at 521 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 476-1000.
What is Peter Boxley's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Peter Boxley enrolled in Medicare?
Yes. Peter Boxley 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.
Is Peter Boxley affiliated with any hospitals?
According to CMS data, Peter Boxley is affiliated with Northwestern Lake Forest Hospital and University Of Illinois Hospital And Clinics.
When was this NPI record last updated?
The NPPES record for Peter Boxley was last updated on June 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 59 days 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. Peter Joseph Boxley, MD · NPI 1972243566
Hospitalist physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since March 31, 2022.
## Identity
- **NPI:** 1972243566 (Entity type: Individual)
- **Enumerated:** March 31, 2022
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 036171940 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 521 PARNASSUS AVE, San Francisco, CA 94143-2206
- **Phone:** (415) 476-1000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** University Of Colorado School Of Medicine, Denver, class of 2022
## Record status
- **NPPES last updated:** June 17, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1972243566) · Data from the CMS NPPES public registry.