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Active NPI 1154882835 Individual Practitioner Female Practitioner

Isabella Maria Oldenburg , PA

Physician Assistant • Providence, RI

✓ Accepts Medicare Assignment Telehealth Available

Professional Overview & Biography Verified Profile Summary

Isabella Oldenburg, PA is a certified Physician Assistant practicing in Providence, RI. With approximately 7 years of clinical experience since completing medical education in 2019, Isabella Oldenburg delivers high-quality medical care to the local community at 44 W RIVER ST.

Isabella Oldenburg maintains professional affiliations with University Gastroenterology, Llc, Gastroenterology Associates Inc and accepts Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include established patient outpatient office visit, new patient outpatient office visit, telephone medical discussion with physician. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

44 W River St

Providence, RI 029042609

Telephone 4012744800
Associated Practice Facility / Clinic
🏢 Endoscopy Associates, Llc Facility NPI 1265484810

Medicare Profile & Education

Medical School

Other

Graduation Year

2019

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Providence, RI

Experienced Practitioner (5-10 Yrs)
Practitioner Clinical Experience
7 Yrs -3.6 yrs vs City Avg
City Avg: 10.6 Yrs
State Avg: 10.2 Yrs
Regional Practice Density
267 Specialists

Practicing in Providence, RI (687 Statewide)

Telehealth Adoption Rate
16.5% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount
49.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Oldenburg (7 Years) 7 Yrs
Providence Specialty Average (10.6 Years) 10.6 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
97 90 $225.00 $109.49
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
30 30 $275.00 $143.28
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more
21 21 $195.48 $95.63
99213 Established patient office or other outpatient visit, typically 15 minutes
19 17 $150.00 $78.15

Medical Specialties & State Licenses

CMS Verified: 2025-10-15
Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License RI PA01442

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

Gastroenterology Associates Inc

44 W River St, Providence, RI 029042609

Phone: 4012744800

University Gastroenterology, Llc

33 Staniford St, Providence, RI 029053105

Phone: 4014218800

University Gastroenterology, Llc

44 W River St, Providence, RI 029042609

Phone: 4012744800

Practice Associates & Co-Workers

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

19 Associated Practitioners
Dr. Neil Greenspan , MD

Internal Medicine - Gastroenterology

NPI 1023007556

Doctor of Medicine (M.D.)

Dr. Samir Shah , MD

Internal Medicine - Gastroenterology

NPI 1043209398

Doctor of Medicine (M.D.)

Daniel Piascik

Physician Assistant - Medical

NPI 1184097784
Jennifer Fallon , FNP-BC

Nurse Practitioner - Family

NPI 1184435810

Family Nurse Practitioner (Board Certified)

Dr. Alyn Adrain , MD

Internal Medicine - Gastroenterology

NPI 1225027766

Doctor of Medicine (M.D.)

Dr. Donald Kaufman , MD

Internal Medicine

NPI 1245229764

Doctor of Medicine (M.D.)

Career & Practice History Timeline

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

11 Historical Events
📍
Updated Business Mailing Address October 15, 2025

Registered at PO BOX 202230, DALLAS, TX 753202230 (Tel: 4012744800)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) October 15, 2025

Physician Assistant (License #PA01442 in RI)

📍
Updated Practice Location August 19, 2022

Registered at 44 W RIVER ST, PROVIDENCE, RI 029042609 (Tel: 4012744800)

📍
Updated Business Mailing Address August 19, 2022

Registered at 44 W RIVER ST, PROVIDENCE, RI 029042609 (Tel: 4012744800)

👤
Provider Name / Credentials Updated August 19, 2022

Recorded as ISABELLA OLDENBURG, PA

NPI Profile Active March 26, 2019

NPI status registered as active in NPPES database

📍
Updated Practice Location March 26, 2019

Registered at 1100 THE ALAMEDA, BERKELEY, CA 947072502 (Tel: 7087106342)

📍
Updated Business Mailing Address March 26, 2019

Registered at 1100 THE ALAMEDA, BERKELEY, CA 947072502 (Tel: 7087106342)

👤
Provider Name / Credentials Updated March 26, 2019

Recorded as ISABELLA KILLION, PA

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) March 26, 2019

Physician Assistant

🟢
Initial NPI Registration & Enumeration March 26, 2019

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: 1154882835
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: March 26, 2019
Last Update: October 15, 2025
Sole Proprietor: No

Mailing Address

Po Box 202230

Dallas, TX 753202230

Phone: 4012744800

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.