HAYLEY ELIZABETH MILLER MD
NPI 1437683497
Obstetrics & Gynecology - Maternal & Fetal Medicine in Stanford, CA
About Hayley Elizabeth Miller Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HAYLEY ELIZABETH MILLER MD (NPI 1437683497) is an individual maternal & fetal medicine provider in Stanford, California, licensed in California (A157979) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS and is a graduate of Rush Medical College Of Rush University (2017).
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
Hayley Elizabeth Miller 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 Hayley Miller 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
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 761 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Hayley Miller's NPI number?
The NPI number for Hayley Miller is 1437683497. It was assigned to this individual provider in the NPPES registry on April 17, 2017. The provider is also known as Haley Miller M.D..
Where is Hayley Miller located?
Hayley Miller practices at 300 Pasteur Dr Rm Hh333, Stanford, CA 94305. The listed phone number is (650) 497-8928.
What is Hayley Miller's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.
Is Hayley Miller enrolled in Medicare?
Yes. Hayley Miller 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 Hayley Miller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Hayley Miller reassigns Medicare benefits to 4 organizations: Stanford Health Care (Stanford, CA), Ucsf Dept Of Surgery (San Francisco, CA), University Of California San Francisco (San Francisco, CA) and Ucsf Medical Group Business Services (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 Hayley Miller'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 Hayley Miller was last updated on October 8, 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.
# Hayley Elizabeth Miller, MD · NPI 1437683497
Maternal & Fetal Medicine physician in Stanford, California. Individual provider, active in the CMS NPPES registry since April 17, 2017.
## Identity
- **NPI:** 1437683497 (Entity type: Individual)
- **Enumerated:** April 17, 2017
- **Primary specialty:** Obstetrics & Gynecology - Maternal & Fetal Medicine · taxonomy 207VM0101X
- **State license:** A157979 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 PASTEUR DR RM HH333, Stanford, CA 94305-2200
- **Phone:** (650) 497-8928
## 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); Ucsf Dept Of Surgery (NPI 1477627537, San Francisco, CA); University Of California San Francisco (NPI 1346329380, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Rush Medical College Of Rush University, class of 2017
## Record status
- **NPPES last updated:** October 8, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1437683497) · Data from the CMS NPPES public registry.