DR. CLAUDIA UNA PFEIL M.D.
NPI 1639367584
Internal Medicine in Pasadena, CA
About Dr. Claudia Una Pfeil M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CLAUDIA UNA PFEIL M.D. (NPI 1639367584) is an individual internal medicine provider in Pasadena, California, licensed in California (A77073) and active in the NPI registry since October 2007. She is enrolled in Medicare PECOS and is a graduate of University Of Maryland School Of Medicine (2000).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 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. Claudia Una Pfeil M.d. 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 Claudia Pfeil 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 90041
- 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 91105 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 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PASADENA, CA 91105
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 Claudia Pfeil's NPI number?
The NPI number for Claudia Pfeil is 1639367584. It was assigned to this individual provider in the NPPES registry on October 4, 2007. The provider is also known as Dr. Claudia Truitt M.D..
Where is Claudia Pfeil located?
Claudia Pfeil practices at 401 S Fair Oaks Ave, Pasadena, CA 91105. The listed phone number is (626) 795-7556.
What is Claudia Pfeil's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Claudia Pfeil enrolled in Medicare?
Yes. Claudia Pfeil 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 Claudia Pfeil's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Claudia Pfeil 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 Claudia Pfeil'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 Claudia Pfeil was last updated on October 27, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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. Claudia Una Pfeil, M.D. · NPI 1639367584
Internal Medicine physician in Pasadena, California. Individual provider, active in the CMS NPPES registry since October 4, 2007.
## Identity
- **NPI:** 1639367584 (Entity type: Individual)
- **Enumerated:** October 4, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** A77073 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 401 S FAIR OAKS AVE, Pasadena, CA 91105-2603
- **Phone:** (626) 795-7556
## 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): Southern California Permanente Medical Group (NPI 1013409044, Los Angeles, CA); Healthcare Partners Affiliates Medical Group (NPI 1659312593, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Maryland School Of Medicine, class of 2000
## Record status
- **NPPES last updated:** October 27, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1639367584) · Data from the CMS NPPES public registry.