Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Lawrence Blass

Individual provider Surgery Physician · NPI 1356632335

Lawrence Blass practises General Surgery in Key West, Florida. Graduated from University of Miami, Lm Miller School of Medicine in 2011, 15 years ago. Practices with Southernmost Surgery and Veins LLC, a 3-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Florida.

Years since qualifying
15
Trained at
University of Miami, Lm Miller School of Medicine
Licensed in
FL
In the registry since
2011
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Practice location Address checks out

3414 Duck Ave # 10
Key West, FL 33040-4427
Phone: (305) 741-7707
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence ME127242 (FL)

Record details

NPI number1356632335
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 26, 2011
Last updated in NPPESApril 25, 2022
Certification dateApril 25, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF MIAMI, LM MILLER SCHOOL OF MEDICINE
Graduated 2011 (15 years in practice)
Group practice Southernmost Surgery And Veins Llc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Varicose vein removal 196 times · 90th percentile
Melanoma (skin cancer) excision 33 times · 81st percentile
Colonoscopy 98 times · 79th percentile
Upper gastrointestinal (GI) endoscopy for acid reflux 40 times · 60th percentile
Hernia repair - groin (open) 1–10 times
Mastectomy 1–10 times
Pacemaker insertion or repair 1–10 times
Removal of tissue 1–10 times
Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients384
Services billed 2,424 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $391 9 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Lower Keys Medical Center Hospital · Key West, FL

Colleagues at Southernmost Surgery and Veins LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Key West