TIFFANY CHEN HERRERO MD
NPI 1609140524
Obstetrics & Gynecology - Maternal & Fetal Medicine in Palo Alto, CA
About Tiffany Chen Herrero Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TIFFANY CHEN HERRERO MD (NPI 1609140524) is an individual maternal & fetal medicine provider in Palo Alto, California, licensed in California (A119846) and active in the NPI registry since February 2012. She is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (2010).
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
Tiffany Chen Herrero 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
4Medicare enrollment records show Tiffany Herrero reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Stanford, CA 94305
- Reassigned Medicare billing, California enrollment
- 4,258 clinicians in this Medicare group
Palo Alto, CA 94304
- Reassigned Medicare billing, California enrollment
- 3,617 clinicians in this Medicare group
San Jose, CA 95128
- Reassigned Medicare billing, California enrollment
- 314 clinicians in this Medicare group
San Diego, CA 92103
- Reassigned Medicare billing, California enrollment
- 171 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 94305 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.
STANFORD, CA 94305
STANFORD, CA 94305
STANFORD, CA 94305
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 Tiffany Herrero's NPI number?
The NPI number for Tiffany Herrero is 1609140524. It was assigned to this individual provider in the NPPES registry on February 24, 2012.
Where is Tiffany Herrero located?
Tiffany Herrero practices at 300 Pasteur Dr, Palo Alto, CA 94305. The listed phone number is (650) 723-4000.
What is Tiffany Herrero's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.
Is Tiffany Herrero enrolled in Medicare?
Yes. Tiffany Herrero 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 Tiffany Herrero's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tiffany Herrero reassigns Medicare benefits to 4 organizations: Stanford Health Care (Stanford, CA), Lpch Medical Group Div Of Lucile (Palo Alto, CA), El Camino Health Medical Network, LLC (San Jose, CA) and Regents Of The University Of California (San Diego, 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 Tiffany Herrero'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 Tiffany Herrero was last updated on April 26, 2024. 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.
# Tiffany Chen Herrero, MD · NPI 1609140524
Maternal & Fetal Medicine physician in Palo Alto, California. Individual provider, active in the CMS NPPES registry since February 24, 2012.
## Identity
- **NPI:** 1609140524 (Entity type: Individual)
- **Enumerated:** February 24, 2012
- **Primary specialty:** Obstetrics & Gynecology - Maternal & Fetal Medicine · taxonomy 207VM0101X
- **State license:** A119846 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 300 PASTEUR DR, Palo Alto, CA 94305-2200
- **Phone:** (650) 723-4000
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Stanford Health Care (NPI 1437292927, Stanford, CA); Lpch Medical Group Div Of Lucile (NPI 1417907940, Palo Alto, CA); El Camino Health Medical Network, LLC (NPI 1164880761, San Jose, CA); Regents Of The University Of California (NPI 1174626618, San Diego, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Irvine, California College Of Medicine, class of 2010
## Record status
- **NPPES last updated:** April 26, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1609140524) · Data from the CMS NPPES public registry.