THOMAS LAWRENCE LAMSON MD
NPI 1225666308
Ophthalmology in Philadelphia, PA
About Thomas Lawrence Lamson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS LAWRENCE LAMSON MD (NPI 1225666308) is an individual ophthalmology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD484677) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with Thomas Jefferson University Hospital, and is a graduate of State University Of New York At Stony Brook, School Of Medicine (2020).
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
Thomas Lawrence Lamson 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
2Medicare enrollment records show Thomas Lamson reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Philadelphia, PA 19107
- Reassigned Medicare billing, Pennsylvania enrollment
- 230 clinicians in this Medicare group
Saipan, MP 96950
- Reassigned Medicare billing, Northern Mariana Islands enrollment
- 12 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 4
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.
Thomas Jefferson University Hospital
Acute Care Hospitals · Philadelphia, PAWills Eye Hospital
Acute Care Hospitals · Philadelphia, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 19107 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 14
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Thomas Lamson's NPI number?
The NPI number for Thomas Lamson is 1225666308. It was assigned to this individual provider in the NPPES registry on April 1, 2020.
Where is Thomas Lamson located?
Thomas Lamson practices at 840 Walnut St Ste 1230, Philadelphia, PA 19107. The listed phone number is (215) 928-3041.
What is Thomas Lamson's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Thomas Lamson enrolled in Medicare?
Yes. Thomas Lamson 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 Thomas Lamson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Lamson reassigns Medicare benefits to 2 organizations: Wills Eye Ophthalmology Clinic, Inc (Philadelphia, PA) and Marianas Eye Institute Inc (Saipan, MP). 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 Thomas Lamson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Lamson accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Buckeye Health Plan, Anthem Blue Cross and Blue Shield and Blue Cross Blue Shield of Wyoming and 6 other insurers list Thomas Lamson 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 Thomas Lamson affiliated with any hospitals?
According to CMS data, Thomas Lamson is affiliated with Thomas Jefferson University Hospital and Wills Eye Hospital.
When was this NPI record last updated?
The NPPES record for Thomas Lamson was last updated on February 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# Thomas Lawrence Lamson, MD · NPI 1225666308
Ophthalmology physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since April 1, 2020.
## Identity
- **NPI:** 1225666308 (Entity type: Individual)
- **Enumerated:** April 1, 2020
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** MD484677 (Pennsylvania)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 840 WALNUT ST STE 1230, Philadelphia, PA 19107-5109
- **Phone:** (215) 928-3041 · **Fax:** (215) 928-3225
## 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): Wills Eye Ophthalmology Clinic, Inc (NPI 1184624009, Philadelphia, PA); Marianas Eye Institute Inc (NPI 1023168010, Saipan, MP) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of New York At Stony Brook, School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** February 7, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1225666308) · Data from the CMS NPPES public registry.