ANNA ELIZABETH FRETZ MD
NPI 1740742394
Internal Medicine - Pulmonary Disease in Valencia, CA
About Anna Elizabeth Fretz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANNA ELIZABETH FRETZ MD (NPI 1740742394) is an individual pulmonary disease provider in Valencia, California, licensed in California (A177075) and active in the NPI registry since April 2019. She is enrolled in Medicare PECOS and is a graduate of Geisel School Of Medicine At Dartmouth (2019).
NPPES Registry Identity
Specialties & Licenses 2
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
Anna Elizabeth Fretz 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 Anna Fretz 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 90095
- Reassigned Medicare billing, California enrollment
- 1,766 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 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 91355 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 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
VALENCIA, CA 91355
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 Anna Fretz's NPI number?
The NPI number for Anna Fretz is 1740742394. It was assigned to this individual provider in the NPPES registry on April 3, 2019.
Where is Anna Fretz located?
Anna Fretz practices at 25775 Mcbean Pkwy Ste 115A, Valencia, CA 91355. The listed phone number is (661) 753-5464.
What is Anna Fretz's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Anna Fretz enrolled in Medicare?
Yes. Anna Fretz 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 Anna Fretz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Anna Fretz reassigns Medicare benefits to 2 organizations: The Regents Of The University Of California (Los Angeles, CA) and Regents Of The University Of California (San Francisco, 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 Anna Fretz'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 Anna Fretz was last updated on August 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months 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.
# Anna Elizabeth Fretz, MD · NPI 1740742394
Pulmonary Disease physician in Valencia, California. Individual provider, active in the CMS NPPES registry since April 3, 2019.
## Identity
- **NPI:** 1740742394 (Entity type: Individual)
- **Enumerated:** April 3, 2019
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **State license:** A177075 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 25775 MCBEAN PKWY STE 115A, Valencia, CA 91355-3702
- **Phone:** (661) 753-5464
## 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): The Regents Of The University Of California (NPI 1235107566, Los Angeles, CA); Regents Of The University Of California (NPI 1376613943, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Geisel School Of Medicine At Dartmouth, class of 2019
## Record status
- **NPPES last updated:** August 3, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1740742394) · Data from the CMS NPPES public registry.