DR. MICHAEL DANIEL LIANG MD, PHD
NPI 1669675872
Internal Medicine - Pulmonary Disease in Everett, WA
About Dr. Michael Daniel Liang Md, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL DANIEL LIANG MD, PHD (NPI 1669675872) is an individual pulmonary disease provider in Everett, Washington, licensed in Washington (MD60145500) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, is affiliated with Skagit Valley Hospital, and maintains a secondary practice location in Seattle.
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. Michael Daniel Liang Md, Phd 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
2Medicare enrollment records show Michael Liang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Everett, WA 98208
- Reassigned Medicare billing, Washington enrollment
- 90 clinicians in this Medicare group
Granite Falls, WA 98252
- Reassigned Medicare billing, Washington enrollment
- 463 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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Skagit Valley Hospital
Acute Care Hospitals · Mount Vernon, WAProvidence Regional Medical Center Everett
Acute Care Hospitals · Everett, WASwedish Edmonds Hospital
Acute Care Hospitals · Edmonds, WASwedish Medical Center
Acute Care Hospitals · Seattle, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98208 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
EVERETT, WA 98208
EVERETT, WA 98208
EVERETT, WA 98208
EVERETT, WA 98208
EVERETT, WA 98208
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 Michael Liang's NPI number?
The NPI number for Michael Liang is 1669675872. It was assigned to this individual provider in the NPPES registry on June 6, 2007.
Where is Michael Liang located?
Michael Liang practices at 12728 19th Ave SE Ste 300, Everett, WA 98208. The listed phone number is (425) 252-1116.
What is Michael Liang's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.
Is Michael Liang enrolled in Medicare?
Yes. Michael Liang 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 Michael Liang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Liang reassigns Medicare benefits to 2 organizations: Western Washington Medical Group, Inc Ps (Everett, WA) and Public Hospital Dist No 1 Skagit (Granite Falls, 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 Michael Liang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Liang accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Michael Liang 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 Michael Liang affiliated with any hospitals?
According to CMS data, Michael Liang is affiliated with Skagit Valley Hospital, Providence Regional Medical Center Everett, Swedish Edmonds Hospital and Swedish Medical Center.
When was this NPI record last updated?
The NPPES record for Michael Liang was last updated on July 7, 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.
# Dr. Michael Daniel Liang, MD, PHD · NPI 1669675872
Pulmonary Disease physician in Everett, Washington. Individual provider, active in the CMS NPPES registry since June 6, 2007.
## Identity
- **NPI:** 1669675872 (Entity type: Individual)
- **Enumerated:** June 6, 2007
- **Primary specialty:** Internal Medicine - Pulmonary Disease · taxonomy 207RP1001X
- **State license:** MD60145500 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 12728 19TH AVE SE STE 300, Everett, WA 98208-6526
- **Phone:** (425) 252-1116 · **Fax:** (425) 252-1118
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Western Washington Medical Group, Inc Ps (NPI 1396413803, Everett, WA); Public Hospital Dist No 1 Skagit (NPI 1033164470, Granite Falls, WA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Boston University School Of Medicine, class of 2007
## Record status
- **NPPES last updated:** July 7, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1669675872) · Data from the CMS NPPES public registry.