Medicare Enrolled

Dr. Oscar Perozo Alfonzo, MD

Anesthesiology · Lawrence, MA
Practice pattern: Mixed Practice — Diverse clinical practice across multiple procedure types
Low-engagement
1 GENERAL ST, Lawrence, MA 01841
9786834000
In practice since 2017 (9 years)
NPI: 1831619238 verify on NPPES ↗
Very High
DATA COVERAGE
Data in 4 of 4 federal sources
Measures public federal data availability — not provider quality
Informational, not a quality rating. This page presents federal public records about Dr. Perozo Alfonzo from CMS (NPPES, Open Payments, Medicare Provider Utilization, PECOS). It is not medical advice, an endorsement, or a judgment of clinical quality. Always consult the provider directly and a licensed clinician for medical decisions. Read methodology →
Are you Dr. Perozo Alfonzo? Request a correction or review of any data shown here. Provider portal →

What this data tells you about Dr. Perozo Alfonzo

Dr. Oscar Perozo Alfonzo is an anesthesiology specialist in Lawrence, MA, with 9 years of NPI registration. Based on federal Medicare data, Dr. Perozo Alfonzo performed 129 Medicare services across 129 unique beneficiaries.

Between the years covered by Open Payments, Dr. Perozo Alfonzo received a total of $288 from 7 pharmaceutical and/or device companies across 10 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in anesthesiology. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.

The Data Coverage level for Dr. Perozo Alfonzo is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.

✓ 9 years in practice ▲ 129 Medicare services $288 industry payments

Medicare Practice Summary

Medicare Utilization ↗
129
Medicare services
Bottom 44% in MA for anesthesiology
129
Unique beneficiaries
$62
Avg. Medicare payment
Medicare patients only (65+ / disabled) · How to read this →
~14 Medicare services per year of practice

Top procedures by volume

Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.

Procedure Volume Avg. paid Avg. submitted
Anesthesia for x-ray or radiation therapy
Administration of anesthesia during x-ray or radiation therapy procedures.
 32 $77 $1,311
Femoral nerve injection with anesthetic and/or steroid
An injection of an anesthetic agent and/or steroid into the femoral nerve in the thigh. This procedure delivers medication directly to the nerve.
 32 $49 $1,498
Anesthesia for endoscopic procedure on esophagus, stomach, or upper small bowel
Administration of anesthesia during an endoscopic procedure involving the esophagus, stomach, or upper small bowel.
 18 $64 $1,041
Anesthesia for large bowel endoscopy
Administration of anesthesia during a procedure to examine the large bowel using an endoscope.
 13 $65 $1,010
Lower back and sciatic nerve injection
An injection of an anesthetic and/or steroid medication into the lower back and sciatic nerve. This procedure delivers medication directly to the nerve site.
 12 $59 $1,540
Anesthesia for abnormal heart rhythm correction
Administration of anesthesia during a procedure to correct an abnormal heart rhythm.
 11 $48 $872
Anesthesia for bowel endoscopy
Administration of anesthesia during a procedure to examine the small and large bowel using an endoscope.
 11 $66 $1,168
How to read this data: This reflects Medicare patients only (typically 65+). Payment amounts are what Medicare paid the provider, not your out-of-pocket cost. A higher procedure volume generally indicates more experience with that procedure.

Industry Payment Transparency

Open Payments through 2024 ↗
$288
Total received (2018-2024)
Avg $96/year across 3 years
Top 33% in MA for anesthesiology
A higher payment rank reflects disclosed industry relationships (consulting, research, speaking) common among subspecialists — not wrongdoing.
7
Companies
10
Individual payments
All payments are legal and publicly reported · Not evidence of wrongdoing · How to interpret →

Payment profile

Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.

Meals & Travel
Food, beverages, travel, and lodging — typically low-value
$288 (100.0%)

Payment trend by year

Annual totals from pharmaceutical and medical device companies.

2024
$17
2023
$243
2018
$28

Payments by company (2024)

Consulting
Speaking
Meals & Travel
Research
Merck Sharp & Dohme LLC
$17
Top 3 companies account for 100.0% of 2024 payments
All-time payments by company (2018-2024) ›
Pacira Pharmaceuticals Incorporated
$134
Merck Sharp & Dohme LLC
$57
Heron Therapeutics, Inc.
$33
CSL Behring
$21
E.R. Squibb & Sons, L.L.C.
$15
Getinge USA Sales, LLC
$14
PFIZER INC.
$13
Top 3 companies account for 78.0% of all-time payments
Associated products mentioned in payments ›
BRIDION · CHANTIX · ELIQUIS · FLOW-i C40 · Iovera · Kcentra · ZYNRELEF
Should you be concerned? Payments from pharmaceutical and device companies are legal and common — 57% of U.S. physicians receive at least one. They often reflect legitimate consulting, research, or education. What matters is whether a recommended drug or device appears in your doctor's payment records. If so, consider asking your doctor about it. How to interpret this data →

Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.

Looking for an anesthesiology specialist in Lawrence?
Compare anesthesiologists in the Lawrence area by procedure volume, costs, and industry payment transparency.
Browse anesthesiologists nearby

Geographic Context

Anesthesiologists within 10 mi
540
Per 100K population
66.9
County median income
$99,431
Nearest hospital
HOLY FAMILY HOSPITAL
2.4 mi

Data Sources

Provider Registry ✓ NPPES Weekly updates
Medicare Enrollment ✓ PECOS Monthly updates
Practice Data ✓ Medicare Util. Annual (CY lag)
Industry Payments ✓ Open Payments CY 2024
Disciplinary History — Not public N/A

This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →

Summary

Dr. Perozo Alfonzo is a mixed practice specialist, with moderate Medicare volume, with low-engagement industry engagement.

This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →

Frequently Asked Questions

Is Dr. Perozo Alfonzo experienced with anesthesia for x-ray or radiation therapy?
Based on Medicare claims data, Dr. Perozo Alfonzo performed 32 anesthesia for x-ray or radiation therapy services. Research suggests that higher procedure volume is often associated with better outcomes, particularly for complex procedures. Note that Medicare data only captures patients aged 65 and older, so the total practice volume across all patients is likely higher.
Does Dr. Perozo Alfonzo receive payments from pharmaceutical companies?
Yes. Dr. Perozo Alfonzo received a total of $288 from 7 companies across 10 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common among physicians — 57% of all U.S. physicians receive at least one industry payment. Patients may wish to ask their doctor about these relationships, especially if a recommended drug or device appears in the payment records.
How do Dr. Perozo Alfonzo's costs compare to other anesthesiologists in Lawrence?
Dr. Perozo Alfonzo's average Medicare payment per service is $62. Note that these figures represent what Medicare pays, not your out-of-pocket cost, which depends on your specific insurance plan and deductible. Procedure-level data above shows both what was submitted and what Medicare paid for each service type.
What does Data Coverage mean?
Data Coverage (currently Very High for Dr. Perozo Alfonzo) measures how much public federal data is available about a provider. It is not a quality rating. A "Very High" or "High" level means the provider has data across multiple federal sources (NPPES, PECOS, Medicare Utilization, Open Payments), indicating a long track record of practice, Medicare participation, and industry disclosure. A "Low" or "Moderate" level may simply mean the provider is newer, does not see Medicare patients, or has not received any industry payments — none of which are inherently negative. Read our full methodology →
Is this data up to date?
Each data source has its own update cycle. Provider registry data (NPPES) is updated weekly. Medicare enrollment (PECOS) is updated monthly. Medicare practice data has a ~2 year lag — the most recent available is typically 2 years prior. Industry payment data (Open Payments) is published annually, usually in June, covering the prior calendar year. We display the data date prominently on each section so you always know how current it is. See our data freshness policy →

Explore related providers

Same specialty & city
Anesthesiologists in Lawrence
Browse anesthesiologists in Lawrence ranked by procedure volume and transparency data.
Highest volume
Top Anesthesiologists in MA
Anesthesiologists ranked by total Medicare services performed statewide.
Industry payments
Pharma Payments to Anesthesiologists in MA
Which MA anesthesiologists receive the most from drug and device companies.
By company
Pacira Pharmaceuticals Incorporated Payments to Doctors
See all physicians who received payments from Pacira Pharmaceuticals Incorporated.
By company
Merck Sharp & Dohme LLC Payments to Doctors
See all physicians who received payments from Merck Sharp & Dohme LLC.
By company
Heron Therapeutics, Inc. Payments to Doctors
See all physicians who received payments from Heron Therapeutics, Inc.
About this page

All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.

This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.

Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology

Data Disclaimer — Data sourced from the Centers for Medicare & Medicaid Services (CMS): National Plan and Provider Enumeration System (NPPES), Open Payments program, Medicare Provider Utilization and Payment Data, and Provider Enrollment & Certification data (PECOS). Published under the Freedom of Information Act (FOIA). This website is not affiliated with, endorsed by, or authorized by CMS, HHS, or the U.S. Government. Data may contain errors as reported to CMS by providers and reporting entities. Payments from industry are legal and do not indicate wrongdoing. Medicare data reflects only patients aged 65+ or those with qualifying disabilities. For corrections, contact CMS directly. This information does not constitute medical advice and should not be used as the sole basis for choosing a healthcare provider. Procedure descriptions use plain language and do not reference CPT® codes, which are copyrighted by the American Medical Association. Full methodology → · Report a data error → · Privacy policy →