DR. MARIE LOUISE FIERO M.D.
NPI 1164741906
Pediatrics in Palo Alto, CA
About Dr. Marie Louise Fiero M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARIE LOUISE FIERO M.D. (NPI 1164741906) is an individual pediatrics provider in Palo Alto, California, licensed in California (A156179) and active in the NPI registry since May 2010. She is enrolled in Medicare PECOS, maintains a secondary practice location in Baltimore, and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
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. Marie Louise Fiero 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 Reassignment
Medicare enrollment records show Marie Fiero reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Richland, WA 99352
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: The Association Of Chrmc And University Physicians
- 1,443 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 94304 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.
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 Marie Fiero's NPI number?
The NPI number for Marie Fiero is 1164741906. It was assigned to this individual provider in the NPPES registry on May 19, 2010.
Where is Marie Fiero located?
Marie Fiero practices at 725 Welch Rd, Palo Alto, CA 94304. The listed phone number is (650) 497-8000.
What is Marie Fiero's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Marie Fiero enrolled in Medicare?
Yes. Marie Fiero 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 Marie Fiero's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marie Fiero reassigns Medicare benefits to Association Of Chmc And University Physicians (Richland, WA). 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 Marie Fiero's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Marie Fiero accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Marie Fiero 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 Marie Fiero was last updated on July 16, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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. Marie Louise Fiero, M.D. · NPI 1164741906
Pediatrics physician in Palo Alto, California. Individual provider, active in the CMS NPPES registry since May 19, 2010.
## Identity
- **NPI:** 1164741906 (Entity type: Individual)
- **Enumerated:** May 19, 2010
- **Primary specialty:** Pediatrics · taxonomy 208000000X
- **State license:** A156179 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 725 WELCH RD, Palo Alto, CA 94304
- **Phone:** (650) 497-8000
## 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:** Association Of Chmc And University Physicians (NPI 1851680664, Richland, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** July 16, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1164741906) · Data from the CMS NPPES public registry.