YAN GENG MD
NPI 1104146620
Family Medicine - Geriatric Medicine in Lacey, WA
About Yan Geng Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
YAN GENG MD (NPI 1104146620) is an individual geriatric medicine provider in Lacey, Washington, licensed in Washington (MD60556212) and active in the NPI registry since June 2010. She is enrolled in Medicare PECOS, is affiliated with Providence St Peter Hospital, and is a graduate of Other (1999).
NPPES Registry Identity
Specialties & Licenses 2
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
Yan Geng 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
3Medicare enrollment records show Yan Geng reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Olympia, WA 98506
- Reassigned Medicare billing, Washington enrollment
- 646 clinicians in this Medicare group
Lacey, WA 98503
- Reassigned Medicare billing, Washington enrollment
- 77 clinicians in this Medicare group
Lacey, WA 98503
- Reassigned Medicare billing, Washington enrollment
- 7 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 9
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Providence St Peter Hospital
Acute Care Hospitals · Olympia, WACapital Medical Center
Acute Care Hospitals · Olympia, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98503 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LACEY, WA 98503
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 Yan Geng's NPI number?
The NPI number for Yan Geng is 1104146620. It was assigned to this individual provider in the NPPES registry on June 7, 2010.
Where is Yan Geng located?
Yan Geng practices at 1450 Northwest Ln SE Ste A, Lacey, WA 98503. The listed phone number is (360) 491-4460.
What is Yan Geng's specialty?
The primary specialty registered for this NPI is Family Medicine, specializing in Geriatric Medicine, with taxonomy code 207QG0300X.
Is Yan Geng enrolled in Medicare?
Yes. Yan Geng 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 Yan Geng's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Yan Geng reassigns Medicare benefits to 3 organizations: Providence Health & Services Washington (Olympia, WA), Capital Medical Center Physicians LLC (Lacey, WA) and Pioneer Family Practice, PLLC (Lacey, WA). 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 Yan Geng's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Yan Geng accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Yan Geng 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.
Is Yan Geng affiliated with any hospitals?
According to CMS data, Yan Geng is affiliated with Providence St Peter Hospital and Capital Medical Center.
When was this NPI record last updated?
The NPPES record for Yan Geng was last updated on May 19, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.