DR. DAVID GUZMAN M.D.
NPI 1275521494
Internal Medicine in Los Angeles, CA
About Dr. David Guzman M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID GUZMAN M.D. (NPI 1275521494) is an individual internal medicine provider in Los Angeles, California, licensed in California (C151747) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. David Guzman M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show David Guzman reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90034
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Los Angeles, CA 90015
- Reassigned Medicare billing, California enrollment
- 2,052 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90034 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.
LOS ANGELES, CA 90034
LOS ANGELES, CA 90034
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 David Guzman's NPI number?
The NPI number for David Guzman is 1275521494. It was assigned to this individual provider in the NPPES registry on October 11, 2005.
Where is David Guzman located?
David Guzman practices at 6041 Cadillac Ave, Los Angeles, CA 90034. The listed phone number is (323) 857-2000.
What is David Guzman's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is David Guzman enrolled in Medicare?
Yes. David Guzman is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for David Guzman's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Guzman reassigns Medicare benefits to 2 organizations: Southern California Permanente Medical Group (Los Angeles, CA) and Healthcare Partners Affiliates Medical Group (Los Angeles, 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 David Guzman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Guzman accept?
Health plans from Wellpoint list David Guzman as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for David Guzman was last updated on October 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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. David Guzman, M.D. · NPI 1275521494
Internal Medicine physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since October 11, 2005.
## Identity
- **NPI:** 1275521494 (Entity type: Individual)
- **Enumerated:** October 11, 2005
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** C151747 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 6041 CADILLAC AVE, Los Angeles, CA 90034-1702
- **Phone:** (323) 857-2000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Southern California Permanente Medical Group (NPI 1043242563, Los Angeles, CA); Healthcare Partners Affiliates Medical Group (NPI 1659312593, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 29, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1275521494) · Data from the CMS NPPES public registry.