MR. CHRISTOPHER REID BROWN MD
NPI 1104900901
Internal Medicine - Pulmonary Disease in San Francisco, CA
About Mr. Christopher Reid Brown Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. CHRISTOPHER REID BROWN MD (NPI 1104900901) is an individual pulmonary disease provider in San Francisco, California, licensed in California (G50990) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of Northwestern University Feinberg Medical School (1982).
NPPES Registry Identity
Specialties & Licenses 3
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
Mr. Christopher Reid Brown 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
2Medicare enrollment records show Christopher Brown reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94109
- Reassigned Medicare billing, California enrollment
- 28 clinicians in this Medicare group
Orinda, CA 94563
- Reassigned Medicare billing, California enrollment
- 4,479 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 94115 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAN FRANCISCO, CA 94115
SAN FRANCISCO, CA 94115
SAN FRANCISCO, CA 94115
SAN FRANCISCO, CA 94115
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 Christopher Brown's NPI number?
The NPI number for Christopher Brown is 1104900901. It was assigned to this individual provider in the NPPES registry on October 25, 2006.
Where is Christopher Brown located?
Christopher Brown practices at 2351 Clay St 501, San Francisco, CA 94115. The listed phone number is (415) 923-3421.
What is Christopher Brown's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Christopher Brown enrolled in Medicare?
Yes. Christopher Brown 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 Christopher Brown's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Brown reassigns Medicare benefits to 2 organizations: San Francisco Critical Care Med Group Inc (San Francisco, CA) and Sutter Bay Medical Foundation (Orinda, 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 Christopher Brown'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 Christopher Brown was last updated on July 11, 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.
# Mr. Christopher Reid Brown, MD · NPI 1104900901
Pulmonary Disease physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since October 25, 2006.
## Identity
- **NPI:** 1104900901 (Entity type: Individual)
- **Enumerated:** October 25, 2006
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **State license:** G50990 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2351 CLAY ST, 501, San Francisco, CA 94115
- **Phone:** (415) 923-3421 · **Fax:** (415) 600-1414
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): San Francisco Critical Care Med Group Inc (NPI 1215000211, San Francisco, CA); Sutter Bay Medical Foundation (NPI 1366898538, Orinda, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Northwestern University Feinberg Medical School, class of 1982
## Record status
- **NPPES last updated:** July 11, 2007
- **Other identifiers:** Medicare UPIN A51868
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Source: [NPI Profile](https://npiprofile.com/npi/1104900901) · Data from the CMS NPPES public registry.