HOWARD ZIHAO YAN MD
NPI 1275093239
Radiology - Diagnostic Radiology in Stanford, CA
About Howard Zihao Yan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HOWARD ZIHAO YAN MD (NPI 1275093239) is an individual diagnostic radiology provider in Stanford, California, licensed in California (A180609) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Harvard Medical School (2019).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 3
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
Howard Zihao Yan 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
11Medicare enrollment records show Howard Yan reassigns Medicare billing to 11 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
Mountain View, CA 94040
- Reassigned Medicare billing, California enrollment
- 109 clinicians in this Medicare group
San Jose, CA 95128
- Reassigned Medicare billing, California enrollment
- 314 clinicians in this Medicare group
Fairfield, CA 94534
- Reassigned Medicare billing, California enrollment
- 3,056 clinicians in this Medicare group
Monterey, CA 93940
- Reassigned Medicare billing, California enrollment
- 245 clinicians in this Medicare group
Fresno, CA 93720
- Reassigned Medicare billing, California enrollment
- 296 clinicians in this Medicare group
Chicago, IL 60631
- Reassigned Medicare billing, California enrollment
- 23 clinicians in this Medicare group
Ypsilanti, MI 48197
- Reassigned Medicare billing, California enrollment
- 7 clinicians in this Medicare group
Cape Coral, FL 33914
- Reassigned Medicare billing, Florida enrollment
- 880 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.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
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 Howard Yan's NPI number?
The NPI number for Howard Yan is 1275093239. It was assigned to this individual provider in the NPPES registry on March 24, 2019. The provider is also known as Zihao Yan.
Where is Howard Yan located?
Howard Yan practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.
What is Howard Yan's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Howard Yan enrolled in Medicare?
Yes. Howard Yan 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 Howard Yan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Howard Yan reassigns Medicare benefits to 11 organizations: Stanford Health Care (Stanford, CA), Lpch Medical Group Div Of Lucile (Palo Alto, CA), Silicon Valley Diagnostic Imaging, Inc. (Mountain View, CA), El Camino Health Medical Network, LLC (San Jose, CA), Sutter Valley Medical Foundation (Fairfield, CA) and 6 more organizations, listed in the Medicare section above. 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 Howard Yan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Howard Yan accept?
Health plans from AmeriHealth Caritas Next and Blue Cross and Blue Shield of Texas list Howard Yan 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 Howard Yan was last updated on May 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Howard Zihao Yan, MD · NPI 1275093239
Diagnostic Radiology physician in Stanford, California. Individual provider, active in the CMS NPPES registry since March 24, 2019.
## Identity
- **NPI:** 1275093239 (Entity type: Individual)
- **Enumerated:** March 24, 2019
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **State license:** A180609 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 PASTEUR DR, Stanford, 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:** 11 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); Silicon Valley Diagnostic Imaging, Inc. (NPI 1629265806, Mountain View, CA); El Camino Health Medical Network, LLC (NPI 1164880761, San Jose, CA); Sutter Valley Medical Foundation (NPI 1184859894, Fairfield, CA); and 6 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Harvard Medical School, class of 2019
## Record status
- **NPPES last updated:** May 18, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1275093239) · Data from the CMS NPPES public registry.