DR. ANDREW LARSON
NPI 1144615253
Otolaryngology in Boston, MA
About Dr. Andrew Larson NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANDREW LARSON (NPI 1144615253) is an individual otolaryngology provider in Boston, Massachusetts, licensed in California (A148212) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2015).
NPPES Registry Identity
Specialties & Licenses
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. Andrew Larson 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 Andrew Larson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Lancaster, CA 93534
- Reassigned Medicare billing, California enrollment
- 13,921 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 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.
BOSTON, MA 02114
BOSTON, MA 02114
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 Andrew Larson's NPI number?
The NPI number for Andrew Larson is 1144615253. It was assigned to this individual provider in the NPPES registry on April 6, 2015.
Where is Andrew Larson located?
Andrew Larson practices at 243 Charles St, Boston, MA 02114. The listed phone number is (617) 573-3654.
What is Andrew Larson's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Andrew Larson enrolled in Medicare?
Yes. Andrew Larson 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 Andrew Larson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Larson reassigns Medicare benefits to Southern California Permanente Medical Group (Lancaster, 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 Andrew Larson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Andrew Larson accept?
Health plans from Taro Health list Andrew Larson 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 Andrew Larson was last updated on August 9, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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. Andrew Larson · NPI 1144615253
Otolaryngology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since April 6, 2015.
## Identity
- **NPI:** 1144615253 (Entity type: Individual)
- **Enumerated:** April 6, 2015
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **State license:** A148212 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 243 CHARLES ST, Boston, MA 02114-3002
- **Phone:** (617) 573-3654
## 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:** Southern California Permanente Medical Group (NPI 1982863783, Lancaster, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2015
## Record status
- **NPPES last updated:** August 9, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1144615253) · Data from the CMS NPPES public registry.