What is Catherine Chung's NPI number?

Catherine Chung's National Provider Identifier (NPI) is 1003325267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Catherine Chung's specialty?

Catherine Chung is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).

Where is Catherine Chung located?

Catherine Chung's practice location on file with NPPES is 2142 S Archer Ave, Chicago, IL 60616-1514.

What is Catherine Chung's phone number?

The practice phone number listed in the NPPES registry for Catherine Chung is (312) 326-1408.

Does Catherine Chung accept Medicare?

Catherine Chung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.

Is Catherine Chung's NPI active?

Yes — Catherine Chung's NPI (1003325267) is active in the NPPES registry as of the last update on 2017-09-20.

IndividualActiveAccepts Medicare

Catherine Chung, APN

NPI 1003325267 · Family Nurse Practitioner · Chicago, IL

Catherine Chung, APN is a Family Nurse Practitioner provider in Chicago, IL (NPI 1003325267).

Provider details

NPI number: 1003325267
Entity type: Individual
Primary specialty: Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Credential: APN
Sex: Female
Sole proprietor: No
License: 209.016478 (IL)

Practice location

2142 S Archer Ave

Chicago, IL 60616-1514

Phone: (312) 326-1408

Street-level locationGet directions

More IL providers

Mailing address

2715 Stockton Rd

Naperville, IL 60564-9470

Specialties & taxonomies

Family Nurse PractitionerPrimary363LF0000XLicense 209.016478 (IL)
Physician Assistants & Advanced Practice Nursing Providers

Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)

Profile Score

Detailed profile(80/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure25% of score
9 yrs in NPPES registry
Profile completeness25% of score
100% of core fields populated
Practice footprint15% of score
1 documented practice location
Medicare service volume (vs. specialty peers)25% of score
1,996 Medicare services, 2024 (ranked within specialty)
Open Payments transparency10% of score
Has Open Payments disclosures (2024)

Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309	716	$89
Initial Or Subsequent Psychiatric Collaborative Care Management, First 30 Minutes in a Month of Behavioral Health Care Manager Activities, in Consultation With a Psychiatric Consultant, and Directed By the Treating Physician Or Other Qualified Health CareG2214	251	$47
Principal Care Management Services for a Single High-Risk Disease, First 30 Minutes Provided Personally By Qualified Health Care Professional, Per Calendar Month.99424	224	$68
Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308	201	$61
Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310	185	$126

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.

Drug	Part D claims (2024)
Gabapentin	16
Oxybutynin Chloridebrand: Oxybutynin Chloride Er	12

Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do not include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$100 across 4 records (Open Payments 2024)

Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.

Enumerated: 2017-09-20
Last updated: 2017-09-20

Frequently asked questions

What is Catherine Chung's NPI number?: Catherine Chung's National Provider Identifier (NPI) is 1003325267, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Catherine Chung's specialty?: Catherine Chung is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
Where is Catherine Chung located?: Catherine Chung's practice location on file with NPPES is 2142 S Archer Ave, Chicago, IL 60616-1514.
What is Catherine Chung's phone number?: The practice phone number listed in the NPPES registry for Catherine Chung is (312) 326-1408.
Does Catherine Chung accept Medicare?: Catherine Chung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
Is Catherine Chung's NPI active?: Yes — Catherine Chung's NPI (1003325267) is active in the NPPES registry as of the last update on 2017-09-20.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

What this provider does (Medicare)

Based on Medicare fee-for-service claims, 2024; not all care is captured.

Service (HCPCS)	Medicare services	Typical Medicare-allowed (2024)
Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309	716	$89
Initial Or Subsequent Psychiatric Collaborative Care Management, First 30 Minutes in a Month of Behavioral Health Care Manager Activities, in Consultation With a Psychiatric Consultant, and Directed By the Treating Physician Or Other Qualified Health CareG2214	251	$47
Principal Care Management Services for a Single High-Risk Disease, First 30 Minutes Provided Personally By Qualified Health Care Professional, Per Calendar Month.99424	224	$68
Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308	201	$61
Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310	185	$126

What this provider prescribes (Medicare Part D)

Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.

Drug	Part D claims (2024)
Gabapentin	16
Oxybutynin Chloridebrand: Oxybutynin Chloride Er	12

Transparency — industry payments

Based on CMS Open Payments, 2024; not all care is captured.

$100 across 4 records (Open Payments 2024)

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments

Registry dates

Frequently asked questions

Specialties & taxonomies

Frequently asked questions

Profile Score

What this provider does (Medicare)

What this provider prescribes (Medicare Part D)

Transparency — industry payments