MS. MARGARET LYNN MEYER MD
NPI 1639289358
Orthopaedic Surgery in Sonoma, CA
About Ms. Margaret Lynn Meyer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. MARGARET LYNN MEYER MD (NPI 1639289358) is an individual orthopaedic surgery provider in Sonoma, California, licensed in California (A88282) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS, is affiliated with Aspirus Rhinelander Hospital, and maintains a secondary practice location in Wausau.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ms. Margaret Lynn Meyer 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.
Areas of Expertise CMS Part B claims 7
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.
Aspirus Rhinelander Hospital
Acute Care Hospitals · Rhinelander, WIAspirus Wausau Hospital
Acute Care Hospitals · Wausau, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95476 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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.
SONOMA, CA 95476
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 Margaret Meyer's NPI number?
The NPI number for Margaret Meyer is 1639289358. It was assigned to this individual provider in the NPPES registry on August 30, 2006.
Where is Margaret Meyer located?
Margaret Meyer practices at 181 Andrieux St Ste #111, Sonoma, CA 95476. The listed phone number is (707) 996-8017.
What is Margaret Meyer's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Margaret Meyer enrolled in Medicare?
Yes. Margaret Meyer 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.
What insurance does Margaret Meyer accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan, HealthPartners and Security Health Plan list Margaret Meyer 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 Margaret Meyer affiliated with any hospitals?
According to CMS data, Margaret Meyer is affiliated with Aspirus Rhinelander Hospital and Aspirus Wausau Hospital.
When was this NPI record last updated?
The NPPES record for Margaret Meyer was last updated on February 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.
# Ms. Margaret Lynn Meyer, MD · NPI 1639289358
Orthopaedic Surgery physician in Sonoma, California. Individual provider, active in the CMS NPPES registry since August 30, 2006.
## Identity
- **NPI:** 1639289358 (Entity type: Individual)
- **Enumerated:** August 30, 2006
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** A88282 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 181 ANDRIEUX ST, STE #111, Sonoma, CA 95476-6920
- **Phone:** (707) 996-8017 · **Fax:** (707) 996-8061
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Temple University School Of Medicine, class of 1998
## Record status
- **NPPES last updated:** February 18, 2026
- **Other identifiers:** Other P00239692; Medicaid 00A882820 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1639289358) · Data from the CMS NPPES public registry.