Katherine Eydelman , NP
Nurse Practitioner • Chicago, IL
4318 S State St
Chicago, IL 606093701
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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Katherine Eydelman is listed in NPPES under Nurse Practitioner.
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NPI assigned on November 4, 2015; this date does not establish years in practice.
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Published CMS data list 137 Original Medicare Part B services in 2020.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020. Published rows only; this is not a quality measure.
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Published Part B service records, 2020:
- 99442 — Telephone medical discussion with physician: 59 service units.
- 99213 — Established patient outpatient office visit: 53 service units.
- G0439 — Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit: 13 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2020. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2019 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2020). CPT notice
See all 4 records in the table · Guide: How to read Medicare Part B data
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Published CMS data list 484 Medicare Part D prescriptions, including refills, in 2022.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022. Published rows only; this is not a quality measure.
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Published Part D records, 2022:
- Atorvastatin Calcium — 88 prescription fills, including refills.
- Lisinopril — 45 prescription fills, including refills.
- Amlodipine Besylate — 37 prescription fills, including refills.
Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2022. Drug names come from pharmacy claims. Listing a drug here is not an endorsement or a recommendation.
See all 22 records in the table · Guide: How to read Medicare Part D prescriber data
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Medicare Part B services went from 126 in 2018 to 137 in 2020.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2018–2020.
Practice Location & Contact Primary Location
4318 S State St
Chicago, IL 606093701
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Nurse Practitioner: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $8,542 in 2020
The total amount Medicare approved for these services in 2020. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
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 – by Provider and Service, 2020.
Paid by Medicare
About $5,934 in 2020
The part of the Medicare-allowed amount that Medicare itself paid in 2020, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
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 – by Provider and Service, 2020.
30-day fills
1,044 standardized 30-day fills in 2022
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
$31,942 in 2022
The total cost of these prescriptions in 2022, paid by Medicare drug plans, patients and other payers together.
It shows the total spending on drugs this clinician prescribed, not what any one patient paid.
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 – by Provider and Drug, 2022.
Industry payments (Open Payments)
Fewer than 11 payment records totaling $23.69 in 2021
Drug and medical device companies must report certain payments to doctors and some other clinicians to CMS, such as meals, travel, speaking fees or research funding.
It shows reported financial ties between this clinician and companies. You can ask your clinician about them.
These records are submitted by drug and medical device companies, and a reported payment does not necessarily mean the financial relationship is improper.
General: payments not tied to research, such as meals, travel, consulting or speaking fees.
A reported payment does not necessarily mean the financial relationship is improper. Research payments can go to a hospital or university for a study the clinician leads, not to the clinician personally. Clinicians can dispute records with the company that reported them.
Source: CMS Open Payments, program year 2021.
NPI first issued
2015
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.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
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, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Chicago and Illinois
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Katherine Eydelman are from 2020.
Medicare Part D
Comparisons use 2024 data. The latest CMS data for Katherine Eydelman are from 2022.
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.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services varied from year to year: 126 in 2018 and 137 in 2020.
- 2018: 126
- 2019: 187
- 2020: 137
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Medicare-allowed amount
Medicare-allowed amount varied from year to year: $9,346 in 2018 and $8,542 in 2020.
- 2018: $9,346
- 2019: $14,955
- 2020: $8,542
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Paid by Medicare
Paid by Medicare decreased 22% from $7,602 in 2018 to $5,934 in 2020.
- 2018: $7,602
- 2019: $10,640
- 2020: $5,934
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Medicare Part D prescriptions
Medicare Part D prescriptions increased 124% from 216 in 2018 to 484 in 2022.
- 2018: 216
- 2019: 4,341
- 2020: 6,052
- 2021: 4,571
- 2022: 484
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30-day fills
30-day fills increased 122% from 470 in 2018 to 1,044 in 2022.
- 2018: 470
- 2019: 9,343
- 2020: 12,587
- 2021: 9,277
- 2022: 1,044
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Part D drug cost
Part D drug cost increased 663% from $4,185 in 2018 to $31,942 in 2022.
- 2018: $4,185
- 2019: $369,280
- 2020: $625,527
- 2021: $458,241
- 2022: $31,942
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Industry payments (Open Payments)
CMS data for industry payments (Open Payments) are available for 2021 only.
Sources: CMS Medicare Physician & Other Practitioners (2020), CMS Medicare Part D Prescribers (2022), CMS Open Payments (2021), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · 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
Program year 2021 (payments made January 1 – December 31, 2021): fewer than 11 records totaling $23.69.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Ozempic | General | $23.69 |
Source: CMS Open Payments, program year 2021, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2017–2019 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 – by Provider and Service data, 2018–2020; 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 |
|---|---|---|---|---|
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99442
Telephone medical discussion with physician, 11-20 minutes
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59 | 27 | $83.72 | $59.87 |
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99213
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
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53 | 35 | $140.82 | $68.19 |
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G0439
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
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13 | 13 | $218.10 | $104.63 |
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36415
Insertion of needle into vein for collection of blood sample
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12 | 11 | $6.00 | $2.98 |
Source: CMS Part B by Provider and Service, 2020; 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 2022.
| Brand Name | Generic Name | Prescriptions | Day Supply | Total Cost | Patients |
|---|---|---|---|---|---|
| Atorvastatin Calcium | Atorvastatin Calcium | 88 | 5,908 | $1,482.13 | 46 |
| Lisinopril | Lisinopril | 45 | 3,418 | $307.85 | 28 |
| Amlodipine Besylate | Amlodipine Besylate | 37 | 2,636 | $345.30 | 22 |
| Albuterol Sulfate Hfa | Albuterol Sulfate | 34 | 1,340 | $1,734.86 | 15 |
| Metformin Hcl | Metformin Hcl | 33 | 2,122 | $246.26 | 21 |
| Pravastatin Sodium | Pravastatin Sodium | 24 | 1,680 | $361.01 | — |
| Nifedipine Er | Nifedipine | 20 | 1,680 | $1,032.67 | 12 |
| Furosemide | Furosemide | 18 | 1,080 | $99.99 | — |
| Fluticasone Propionate | Fluticasone Propionate | 16 | 630 | $142.67 | — |
| Metoprolol Succinate | Metoprolol Succinate | 16 | 1,440 | $379.81 | — |
| Tamsulosin Hcl | Tamsulosin Hcl | 16 | 834 | $227.10 | — |
| Gabapentin | Gabapentin | 15 | 930 | $299.76 | — |
| Hydrochlorothiazide | Hydrochlorothiazide | 15 | 1,230 | $68.66 | 12 |
| Simvastatin | Simvastatin | 14 | 1,260 | $113.21 | — |
| Enalapril Maleate | Enalapril Maleate | 12 | 1,080 | $381.27 | — |
| Montelukast Sodium | Montelukast Sodium | 12 | 480 | $378.65 | — |
| Symbicort | Budesonide/Formoterol Fumarate | 12 | 420 | $5,374.91 | — |
| Jardiance | Empagliflozin | 12 | 720 | $14,106.89 | — |
| Incruse Ellipta | Umeclidinium Bromide | 12 | 360 | $4,538.16 | — |
| Carvedilol | Carvedilol | 11 | 630 | $108.70 | — |
| Losartan Potassium | Losartan Potassium | 11 | 750 | $106.98 | — |
| Famotidine | Famotidine | 11 | 510 | $105.47 | — |
Source: CMS Part D by Provider and Drug, 2022; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 363L00000X
(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.
NUCC Taxonomy Code: 363L00000X
(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.
Additional State Medicaid & Healthcare Payer Identifiers
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Internal Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Adult Health
Advanced Practice Registered Nurse
Family Medicine
Doctor of Medicine (M.D.)
Nurse Practitioner - Family
Nurse Practitioner
Nurse Practitioner - Family
Internal Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 4318 S STATE ST, CHICAGO, IL 606093701 (Tel: 7732859304)
Registered at 4318 S STATE ST, CHICAGO, IL 606093701 (Tel: 7732859304)
Recorded as KATHERINE EYDELMAN, NP
NPI status registered as active in NPPES database
Registered at 1501 E CALVADA BLVD, PAHRUMP, NV 890485807 (Tel: 7757275500)
Registered at PO BOX 98978, LAS VEGAS, NV 891938978 (Tel: 7022163346)
Recorded as KATHERINE TONNIES, NP
Nurse Practitioner (license number reported to NPPES: NV APRN002070)
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Nurse Practitioners in Chicago
- Yvonne Stallard, APN-CNP
- Jeff Johnson, APN-CNP
- Dwayne Dobschuetz, APN
- Florence Pascua, APRN, AGPCNP-BC
- Roma Shah, APRN, CNP
- Sarah O'brien, NP
Mailing Address
4318 S State St
Chicago, IL 606093701
Phone: 7732859304