DR. LAWRENCE ANTHONY SENFFNER M.D.
NPI 1730120676
Internal Medicine in Arcata, CA
About Dr. Lawrence Anthony Senffner M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LAWRENCE ANTHONY SENFFNER M.D. (NPI 1730120676) is an individual internal medicine provider in Arcata, California, licensed in California (G17651) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (1967).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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. Lawrence Anthony Senffner M.d. 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 Reassignment
Medicare enrollment records show Lawrence Senffner reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Arcata, CA 95521
- Reassigned Medicare billing, California enrollment
- 43 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
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 95521 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 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ARCATA, CA 95521
ARCATA, CA 95521
ARCATA, CA 95521
ARCATA, CA 95521
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 Lawrence Senffner's NPI number?
The NPI number for Lawrence Senffner is 1730120676. It was assigned to this individual provider in the NPPES registry on June 10, 2006.
Where is Lawrence Senffner located?
Lawrence Senffner practices at 3798 Janes Rd Suite 20, Arcata, CA 95521. The listed phone number is (707) 822-2432.
What is Lawrence Senffner's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Lawrence Senffner enrolled in Medicare?
Yes. Lawrence Senffner 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 organization bills Medicare for Lawrence Senffner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lawrence Senffner reassigns Medicare benefits to North Pacific Cardiology Medical (Arcata, CA). The 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 Lawrence Senffner'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 Lawrence Senffner was last updated on December 20, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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. Lawrence Anthony Senffner, M.D. · NPI 1730120676
Internal Medicine physician in Arcata, California. Individual provider, active in the CMS NPPES registry since June 10, 2006.
## Identity
- **NPI:** 1730120676 (Entity type: Individual)
- **Enumerated:** June 10, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** G17651 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3798 JANES RD, SUITE 20, Arcata, CA 95521-4753
- **Phone:** (707) 822-2432 · **Fax:** (707) 822-6301
## 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:** North Pacific Cardiology Medical (NPI 1093821837, Arcata, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 1967
## Record status
- **NPPES last updated:** December 20, 2011
- **Other identifiers:** Medicaid 00G176510 (CA); Medicare UPIN A40143 (CA); Medicare ID-Type Unspecified WG176510 (CA)
---
Source: [NPI Profile](https://npiprofile.com/npi/1730120676) · Data from the CMS NPPES public registry.