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Active NPI 1861136186 Individual Practitioner Male Practitioner

Nikolas W Rivera , PA

Physician Assistant • Boston, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Nikolas Rivera, PA is a certified Physician Assistant practicing in Boston, MA. With approximately 4 years of clinical experience since completing medical education in 2022, Nikolas Rivera delivers high-quality medical care to the local community at 450 BROOKLINE AVE.

Nikolas Rivera is affiliated with Dana-Farber Cancer Institute, Inc. and accepts Medicare assignment.

Frequently performed procedures and clinical services include initial hospital care with straightforward or low-level medical decision making, if using time, at least. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

450 Brookline Ave

Boston, MA 022155450

Telephone 6176323352
Associated Practice Facility / Clinic

Medicare Profile & Education

Medical School

Other

Graduation Year

2022

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Boston, MA

Rising Specialist (<5 Yrs)
Practitioner Clinical Experience
4 Yrs -3.9 yrs vs City Avg
City Avg: 7.9 Yrs
State Avg: 10.0 Yrs
Regional Practice Density
1664 Specialists

Practicing in Boston, MA (4746 Statewide)

Telehealth Adoption Rate
15.4% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
78.7% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Rivera (4 Years) 4 Yrs
Boston Specialty Average (7.9 Years) 7.9 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes
33 33 $544.82 $115.85

Medical Specialties & State Licenses

CMS Verified: 2026-01-31
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License MA PA9304

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Hospital & Practice Group Affiliations

Dana-Farber Cancer Institute, Inc.

450 Brookline Ave, Boston, MA 022155418

Phone: 6176323000

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

24 Associated Practitioners
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Physician Assistant

NPI 1073207221
Victoria Childs

Physician Assistant

NPI 1104528058
Jacqueline Barnes

Physician Assistant

NPI 1184402539
Dr. Ting Bao , MD

Internal Medicine - Medical Oncology

NPI 1225174949

Doctor of Medicine (M.D.)

Erica Cheung

Physician Assistant

NPI 1275272775
Jillian Purtell , PA-C

Physician Assistant - Medical

NPI 1285405688

Physician Assistant (Certified)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

9 Historical Events
📍
Updated Practice Location January 31, 2026

Registered at 450 BROOKLINE AVE, BOSTON, MA 022155450 (Tel: 6176323352)

📍
Updated Business Mailing Address January 31, 2026

Registered at 22 SHANNON ST APT 2, BRIGHTON, MA 021353433 (Tel: 7169986810)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 31, 2026

Physician Assistant (License #PA9304 in MA)

NPI Profile Active April 22, 2022

NPI status registered as active in NPPES database

📍
Updated Practice Location April 22, 2022

Registered at 1425 PORTLAND AVE, ROCHESTER, NY 146213011 (Tel: 5859224000)

📍
Updated Business Mailing Address April 22, 2022

Registered at 391 MCKINLEY AVE, WILLIAMSVILLE, NY 142217137 (Tel: 7169986810)

👤
Provider Name / Credentials Updated April 22, 2022

Recorded as NIKOLAS RIVERA, PA

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) April 22, 2022

Physician Assistant

🟢
Initial NPI Registration & Enumeration April 22, 2022

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1861136186
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: April 22, 2022
Last Update: January 31, 2026
Sole Proprietor: No

Mailing Address

22 Shannon St Apt 2

Brighton, MA 021353433

Phone: 7169986810

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.