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CHI YUNG AHN M.D.
NPI 1578857835
Internal Medicine in Chicago, IL

Active since June 04, 2011
5140 N CALIFORNIA AVE, STE 705, CHICAGO, IL 60625(773) 989-7554 Get Directions Write a Review

NPPES record last updated: October 30, 2020. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Oct 30, 2020, Dec 14, 2015 (2 updates tracked since 2015).

About Chi Yung Ahn M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHI YUNG AHN M.D. (NPI 1578857835) is an individual internal medicine provider in Chicago, Illinois, licensed in Illinois (036138610) and active in the NPI registry since June 2011.

NPPES Registry Identity

NPI1578857835
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameCHI YUNG AHNCredential: M.D.
Location Address5140 N CALIFORNIA AVE, STE 705Chicago, IL 60625-3645
Mailing Address2740 W Foster Ave, Ll7Chicago, IL 60625-3500 · (773) 878-8200
Phone(773) 989-7554
Sole ProprietorNo
Enumeration DateJune 4, 2011
Last NPPES UpdateOctober 30, 20202 updates tracked since enumeration
NPPES CertifiedOctober 30, 2020
✔ NPI 1578857835 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in IL · 036138610
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Geriatric MedicineTaxonomy 207RG0300X · License 036138610 (IL)
5140 N CALIFORNIA AVE, Chicago, IL 60625
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Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Depression Utilization of the PHQ-9 Tool
The percentage of patients age 18 and older with the diagnosis of major depression or dysthymia who have a completed PHQ-9 during each applicable 4 month period in which there was a qualifying visit
Patients 4MonthsOfEnd: 64% · 33 patients
Patients 4MonthsOfStart: 62% · 29 patients
61%36 patients
Diabetes: Medical Attention for Nephropathy
The percentage of patients 18-75 years of age with diabetes who had a nephropathy screening test or evidence of nephropathy during the measurement period
95%146 patients4/55-star benchmark: 99%
Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
99%3,249 patients4/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
80%2,406 patients2/55-star benchmark: 99%
Health Information Exchange
The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…
4%350 patients1/55-star benchmark: 88%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
34%472 patients1/55-star benchmark: 100%
Preventive Care and Screening: Screening for Depression and Follow-Up Plan
Percentage of patients aged 12 years and older screened for depression on the date of the encounter using an age appropriate standardized depression screening tool AND if positive, a follow-up plan is documented on the date of the positive screen
97%843 patients5/55-star benchmark: 96%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
58%395 patients3/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
19%395 patients1/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
5%395 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. CHATHUSHKI BANDARA DO
Emergency Medicine
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 878-8200
PIERCE MICHAEL PATERAKOS
Internal Medicine
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 878-8200
DR. VASEEM QURESHI M.D.
Internal Medicine (Nephrology)
5140 N CALIFORNIA AVE, SUITE 700
CHICAGO, IL 60625
Cook County (773) 784-2101
DR. WASAY HUMAYUN M.D.
Family Medicine
5140 N CALIFORNIA AVE, STE 700
CHICAGO, IL 60625
Cook County (773) 784-2101
DR JOSEPH S KIM DPM
Podiatrist (Foot & Ankle Surgery)
5140 N CALIFORNIA AVE, STE 515
CHICAGO, IL 60625
Cook County (773) 989-1699
DR. MORGAN CLEM DO
Hospitalist
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (217) 836-1376
LLOYD QUINN YOUNG
Podiatrist (Foot & Ankle Surgery)
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 878-8200
SHANNON SIKKILA N.P.
Nurse Practitioner (Adult Health)
5140 N CALIFORNIA AVE
CHICAGO, IL 60625
Cook County (773) 293-4178

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Chi Ahn's NPI number?

The NPI number for Chi Ahn is 1578857835. It was assigned to this individual provider in the NPPES registry on June 4, 2011.

Where is Chi Ahn located?

Chi Ahn practices at 5140 N California Ave Ste 705, Chicago, IL 60625. The listed phone number is (773) 989-7554.

What is Chi Ahn's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Chi Ahn was last updated on October 30, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.