Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Olivia Walsh

Nurse Practitioner โ€ข Chicago, IL

Active NPI 1912457730 Individual Practitioner Female Practitioner Accepts Medicare assignment Telehealth (some services)
Practice location in NPPES

675 N Saint Clair St Ste 20-150
Chicago, IL 606115979

Call 3126958146 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

675 N Saint Clair St Ste 20-150

Chicago, IL 606115979

Telephone 3126958146
Fax 3126957030
Organization at the Same NPPES Address or Phone
Northwestern Medical Faculty Foundation Facility NPI 1497308340

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Northwestern Medical Faculty Foundation. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Medical School

University Of Illinois College Of Med (Chi/peor/rock/chm-Urb)

Graduation Year

2016

Medicare patients

276 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider, 2024.

Medicare-allowed amount

About $34,859 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

Paid by Medicare

About $23,443 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners โ€“ by Provider and Service, 2024.

30-day fills

1,044 standardized 30-day fills in 2024

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$40,300 in 2024

The total cost of these prescriptions in 2024, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers โ€“ by Provider and Drug, 2024.

Open Payments general payments, program year 2025

All general payments: $4,838.76 across 4 records.

By nature of payment

  • Consulting Fee: $4,838.76 across 4 records.

Reporting-company totals

  • Pfizer Inc.: $2,640.00 across 3 records.
  • Sumitomo Pharma America, Inc.: $2,198.76 across 1 record.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

10 years (graduated 2016)

CMS Doctors and Clinicians data list 2016 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2016

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, โ€œDoes your provider accept Medicare as full payment?โ€

Guide: What Medicare assignment means

Telehealth (some services)

Recent Medicare claims show this clinician provided some services by telehealth, such as a video or phone visit.

What this does not show: Telehealth (some services)

It does not mean all services are offered by telehealth, or that telehealth is covered by your plan.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Olivia Walsh has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Olivia Walsh as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Chicago and Illinois

Billing and prescribing volume is not a quality rating.

Medicare Part B services

More Medicare Part B services than 75% of clinicians listed under Nurse Practitioner in Chicago, IL (2024, 377 clinicians with data). Median for this group: 153. Middle half: 60 to 327.

More Medicare Part B services than 60% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,561 clinicians with data). Median for this group: 261. Middle half: 101 to 526.

Medicare-allowed amount

A higher Medicare-allowed amount than 80% of clinicians listed under Nurse Practitioner in Chicago, IL (2024, 377 clinicians with data). Median for this group: $13,286. Middle half: $5,333 to $28,905.

A higher Medicare-allowed amount than 65% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,561 clinicians with data). Median for this group: $21,010. Middle half: $8,652 to $42,014.

Paid by Medicare

A higher Medicare payment amount than 75% of clinicians listed under Nurse Practitioner in Chicago, IL (2024, 377 clinicians with data). Median for this group: $9,934. Middle half: $3,962 to $21,570.

A higher Medicare payment amount than 65% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,561 clinicians with data). Median for this group: $15,151. Middle half: $6,396 to $31,322.

Medicare Part D prescriptions

More Part D prescriptions than 75% of clinicians listed under Nurse Practitioner in Chicago, IL (2024, 364 clinicians with data). Median for this group: 134. Middle half: 47 to 424.

More Part D prescriptions than 60% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,572 clinicians with data). Median for this group: 259. Middle half: 80 to 930.

Part D drug cost

A higher Part D drug cost than 65% of clinicians listed under Nurse Practitioner in Chicago, IL (2024, 364 clinicians with data). Median for this group: $7,605. Middle half: $492 to $57,977.

A higher Part D drug cost than 60% of clinicians listed under Nurse Practitioner in Illinois (2024, 2,572 clinicians with data). Median for this group: $10,867. Middle half: $976 to $113,945.

952 active clinicians are listed under Nurse Practitioner with a practice address in Chicago, IL (4,894 in Illinois).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Chicago

20% of these 952 clinicians have the CMS telehealth indicator.

56.2% of these 952 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2024), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo ยท Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments ยท Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 โ€“ December 31, 2025): fewer than 11 records totaling $4,838.76.

Manufacturer Payment Nature Product Type Amount ($)
Sumitomo Pharma America, Inc.
Consulting Fee
Cash or cash equivalent
โ€” General $2,198.76
Pfizer Inc.
Consulting Fee
Cash or cash equivalent
XTANDI General $1,200.00
Pfizer Inc.
Consulting Fee
Cash or cash equivalent
XTANDI General $960.00
Pfizer Inc.
Consulting Fee
Cash or cash equivalent
XTANDI General $480.00

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B ยท Data Year 2024
Reporting Year:

CPTยฎ is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016โ€“2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners โ€“ by Provider and Service data, 2017โ€“2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
102 88 $219.00 $79.94
99442 Telephone medical discussion with physician, 11-20 minutes
102 85 $175.00 $79.44
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more
67 67 $587.15 $148.17
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
54 48 $323.00 $111.05
51798 Ultrasound measurement of bladder capacity after voiding
20 18 $230.00 $11.72
99443 Telephone medical discussion with physician, 21-30 minutes
16 16 $250.00 $112.74
99441 Telephone medical discussion with physician, 5-10 minutes
13 13 $100.00 $49.21

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2024.

CMS Part D ยท Data Year 2024
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Tamsulosin Hcl Tamsulosin Hcl 183 13,532 $2,561.04 62
Alfuzosin Hcl Er Alfuzosin Hcl 47 2,845 $698.79 13
Finasteride Finasteride 41 3,670 $531.15 14
Myrbetriq Mirabegron 35 1,650 $23,806.36 โ€”
Solifenacin Succinate Solifenacin Succinate 35 2,056 $4,876.89 โ€”
Cephalexin Cephalexin 24 330 $127.29 16
Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst 23 161 $358.23 15
Tolterodine Tartrate Er Tolterodine Tartrate 21 855 $2,849.59 โ€”
Estradiol Estradiol 20 1,263 $1,304.97 11
Tadalafil Tadalafil 19 750 $398.35 โ€”
Methenamine Hippurate Methenamine Hippurate 17 810 $1,280.80 โ€”
Silodosin Silodosin 17 630 $887.13 โ€”
Trimethoprim Trimethoprim 14 420 $108.76 โ€”
Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim 12 93 $58.20 โ€”
Oxybutynin Chloride Er Oxybutynin Chloride 11 570 $361.72 โ€”
Oxybutynin Chloride Oxybutynin Chloride 11 382 $90.55 โ€”

Source: CMS Part D by Provider and Drug, 2024; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2020-08-28
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES IL 209014760

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Nurse Practitioner - Acute Care

NUCC Taxonomy Code: 363LA2100X

License # reported to NPPES IL 209014760
Nurse Practitioner - Adult Health

NUCC Taxonomy Code: 363LA2200X

License # reported to NPPES IL 209014760
Nurse Practitioner - Gerontology

NUCC Taxonomy Code: 363LG0600X

License # reported to NPPES IL 209014760
Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Illinois Department of Financial and Professional Regulation.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NURSE PRACTITIONER

Medicare Enrollment ID

I20161026002770

Enrollment State Jurisdiction

IL

PECOS Control ID

8325326374

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Northwestern Medical Faculty Foundation

680 N Lake Shore Dr, Chicago, IL 606118700

Phone: 3129266146

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

23 listed
NPI 1366529240

Doctor of Medicine (M.D.)

Adria Bertolini , APN

Nurse Practitioner

NPI 1811464340

Advanced Practice Nurse

Valerie Brown , PA

Physician Assistant - Medical

NPI 1760448120

Physician Assistant

Zebedee Cluff , PA-C

Physician Assistant

NPI 1467220525

Physician Assistant (Certified)

NPI 1053060566

Doctor of Medicine (M.D.)

Rachel Haseltine , PA-C

Physician Assistant

NPI 1215522024

Physician Assistant (Certified)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

14 Historical Events
๐Ÿ“
Updated Practice Location August 28, 2020

Registered at 675 N SAINT CLAIR ST STE 20-150, CHICAGO, IL 606115979 (Tel: 3126958146)

๐Ÿ“
Updated Business Mailing Address August 28, 2020

Registered at 675 N SAINT CLAIR ST STE 20-150, CHICAGO, IL 606115979 (Tel: 3126958146)

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) August 28, 2020

Nurse Practitioner (license number reported to NPPES: IL 209014760)

โœ…
NPI Profile Active May 04, 2017

NPI status registered as active in NPPES database

๐Ÿ“
Updated Practice Location May 04, 2017

Registered at 251 E HURON ST, CHICAGO, IL 606112908 (Tel: 3129262000)

๐Ÿ“
Updated Business Mailing Address May 04, 2017

Registered at 251 E HURON ST, CHICAGO, IL 606112908

๐Ÿ‘ค
Provider Name / Credentials Updated May 04, 2017

Recorded as OLIVIA WALSH

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) May 04, 2017

Nurse Practitioner (license number reported to NPPES: IL 209014760)

โœ…
NPI Profile Active November 28, 2016

NPI status registered as active in NPPES database

๐Ÿ“
Practice Location (Initial Record) November 28, 2016

Registered at 251 E HURON ST, CHICAGO, IL 606112908 (Tel: 3129262000)

๐Ÿ“
Business Mailing Address (Initial Record) November 28, 2016

Registered at 251 E HURON ST, CHICAGO, IL 606112908

๐Ÿ‘ค
Provider Name / Credentials (Initial Record) November 28, 2016

Recorded as OLIVIA WALSH

๐ŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) November 28, 2016

Nurse Practitioner (license number reported to NPPES: IL 209014760)

๐ŸŸข
Initial NPI Registration & Enumeration October 04, 2016

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1912457730
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: October 04, 2016
Last Update: August 28, 2020
Sole Proprietor: No

Other Nurse Practitioners in Chicago

All Nurse Practitioners in Chicago

Mailing Address

675 N Saint Clair St Ste 20-150

Chicago, IL 606115979

Phone: 3126958146

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.