DR. NICHOLAS A BUTOWSKI MD
NPI 1184681009
Neurological Surgery in San Francisco, CA
About Dr. Nicholas A Butowski Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NICHOLAS A BUTOWSKI MD (NPI 1184681009) is an individual neurological surgery provider in San Francisco, California, licensed in California (A74692) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (1999).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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. Nicholas A Butowski 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 Reassignment
Medicare enrollment records show Nicholas Butowski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 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 5
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 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.
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.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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
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 Nicholas Butowski's NPI number?
The NPI number for Nicholas Butowski is 1184681009. It was assigned to this individual provider in the NPPES registry on April 26, 2006.
Where is Nicholas Butowski located?
Nicholas Butowski practices at 400 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 353-2996.
What is Nicholas Butowski's specialty?
The primary specialty registered for this NPI is Neurological Surgery with taxonomy code 207T00000X.
Is Nicholas Butowski enrolled in Medicare?
Yes. Nicholas Butowski 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 organization bills Medicare for Nicholas Butowski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Butowski reassigns Medicare benefits to Ucsf Medical Group Business Services (San Francisco, CA). The 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 Nicholas Butowski'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 Nicholas Butowski was last updated on July 23, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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. Nicholas A Butowski, MD · NPI 1184681009
Neurological Surgery physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since April 26, 2006.
## Identity
- **NPI:** 1184681009 (Entity type: Individual)
- **Enumerated:** April 26, 2006
- **Primary specialty:** Neurological Surgery · taxonomy 207T00000X
- **State license:** A74692 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 400 PARNASSUS AVE, San Francisco, CA 94143-2202
- **Phone:** (415) 353-2996 · **Fax:** (415) 353-2167
## 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:** Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 1999
## Record status
- **NPPES last updated:** July 23, 2008
- **Other identifiers:** Medicare UPIN I07775 (CA); Medicare PIN 00A746920 (CA); Medicaid 00A746920 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1184681009) · Data from the CMS NPPES public registry.